-
Close-up of the previous specimen (Author: Antonio Alcaide)
Close-up of the previous specimen
-
Close-up. (Author: Darren)
Close-up.
-
Closer picture of some of the galena crystals, each one ~ 1 cm. (Author: Tobi)
Closer picture of some of the gale
-
Closer to home, I slept for one night in the field on a farm and woke up with these antelope grazing about 200 m away. (Author: Pierre Joubert)
Closer to home, I slept for one ni
-
closer view of workings (Author: thecrystalfinder)
closer view of workings
-
U.S. Highway 27 roadcut, Halls Gap, Lincoln County, Kentucky, USA
4,5 x 4 cm (Author: Volkmar Stingl)Closer view.
-
Cianciana Mines, Cianciana, Agrigento (Girgenti) Province, Sicily, Italy
9 x 6,5 cm (Author: Volkmar Stingl)Closer view.
-
closeup of the previous (Author: alex chaus)
closeup of the previous
-
Cluster of stilbites near the point where the two large fluorapophyllite crystals intersect (Author: Tracy)
Cluster of stilbites near the poin
-
Coahuila Mexico.jpg (Author: Carlos M.)
Coahuila Mexico.jpg
-
Coarse spherical aggregate of graphite crystals partially dissolved from enclosing calcite matrix, with associated unidentified silicates. (1.2-mm diameter) (Author: John Jaszczak)
Coarse spherical aggregate of grap
-
Cobaltaustinite, Cobaltlotharmeyerite, Dolomite
Aghbar Mine (Arhbar Mine), Bou Azzer mining district, Zagora Province, Drâa-Tafilalet Region, Morocco
fov 1.8 mm (Author: ploum)Cobaltaustinite, Cobaltlotharmeyerite, Dolomite
Aghbar Mine (Arhbar Mine), Bou Azzer mining district, Zagora Province, Drâa-Tafilal -
Cobaltian Calcite (Author: Gail)
Cobaltian Calcite
-
Cobaltian Calcite. 8.5x6.5x5.7 cm (Author: José Miguel)
Cobaltian Calcite. 8.5x6.5x5.7 cm
-
Cobaltian Calcite
Agdal, Bou Azzer area, Morocco,
7x8 cm. (Author: Enrique Llorens)
Cobaltian Calcite
Agdal, Bou Azzer -
Cobaltite on Chalcopyrite
Tunaberg, Nyköping, Södermanland, Sweden
pending (Author: Gail)Cobaltite on Chalcopyrite
Tuna -
Cobaltite on Chalcopyrite
Håkansboda mining group, Lindesberg, Örebro, Västmanland, Sweden
5 x 6.5 x 3 cm / main crystal: 5.1 cm (Author: MIM Museum)Cobaltite on Chalcopyrite
Håk -
Cobaltite on Chalcopyrite
Håkansboda mining group, Lindesberg, Örebro, Västmanland, Sweden
5 x 6.5 x 3 cm / main crystal: 5.1 cm (Author: MIM Museum)Cobaltite on Chalcopyrite
Håk -
Cobaltoan Calcite
Agoudal MIne, Bou Azzer, Tazenakht, Morocco
8x6.3 cm
Brilliant purplish pink slightly prismatic crystals in a complete mound. (Author: Greg Lilly)
Cobaltoan Calcite Agoudal MIne, Bo
-
Cobaltoan Calcite
Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of Congo (Zaïre)
30 x 30 x 30 mm (Author: Tobi)
Cobaltoan Calcite Katanga Copper C
-
Cobaltoan calcite
Mashamba West Mine, Kolwezi District, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of Congo (Zaïre) (Author: Roger Warin)
Cobaltoan calcite Mashamba West Mi
-
Cobaltoan Calcite and Spherocobaltite
Agoudal Mines, Tansifite, Agdz, Bou Azzer mining district, Zagora Province, Drâa-Tafilalet Region, Morocco
fov 4.5 mm (Author: ploum)Cobaltoan Calcite and Spherocobaltite
Agoudal Mines, Tansifite, Agdz, Bou Azzer mining district, Zagora Province, Drâa-Tafilalet Region, -
Cobaltoan Dolomite
Mashamba West Mine, Kolwezi, Katanga, R. D. Congo (Zaïre)
8x4x4 cm (Author: B&A)
Cobaltoan Dolomite Mashamba West M
-
Cobaltoan smithsonite
Tsumeb, Namibia
70 x 66 x 47 mm
Same as above. (Author: Pierre Joubert)
Cobaltoan smithsonite Tsumeb, Nami
-
Cobaltoan smithsonite
Tsumeb, Namibia
70 x 66 x 47 mm
Same as above. (Author: Pierre Joubert)
Cobaltoan smithsonite Tsumeb, Nami
-
Cobaltoan smithsonite
Tsumeb, Namibia
70 x 66 x 47 mm (Author: Pierre Joubert)
Cobaltoan smithsonite Tsumeb, Nami
-
cogs3.JPG (Author: nurbo)
cogs3.JPG
-
Colemanite
Billie Mine, 1490’ Level, Death Valley, Furnace Creek District, Inyo, Co., California
9.6 x 12.3 cm.
Large glassy crystals of colemanite to 2.7 cm. (Author: crosstimber)
Colemanite Billie Mine, 1490&rsquo
-
Colemanite on Calcite
Boron, Kramer District (Kramer Borate District), Kern County, California, USA
4.6 x 3.6 cm (Author: Michael Shaw)Colemanite on Calcite
Boron, K -
Colemanite on Calcite
Boron, Kramer District (Kramer Borate District), Kern County, California, USA
2.8 x 2.5 cm (Author: Michael Shaw)Colemanite on Calcite
Boron, K -
Colemanite ps. inyoite
Corkescrew Canyon Mine, Furnace Creek Dist., Death Valley, Inyo Co., California
7.4 x 10.6 cm.
Transparent colemanite crystals pseudomorphing inyoite and included with brown microcrystals of todorokite. (Author: crosstimber)
Colemanite ps. inyoite Corkescrew
-
Colemanite. Boron, Kern Co., California. 8,5 x 6 cm. (Author: Antonio Alcaide)
Colemanite. Boron, Kern Co., Calif
-
Colemanite. Boron, Kern Co., California. 11 x 7,5 cm. Crystals up to 1,5 cm. Ex Dr. Krantz collection. (Author: Antonio Alcaide)
Colemanite. Boron, Kern Co., Calif
-
Colemanite
6.5 x 4.5 x 3cm
Death Valley – California - USA (Author: molsina)
Colemanite
6.5 x 4.5 x 3cm -
Colemanite
6.5 x 4.5 x 3cm
Death Valley – California - USA (Author: molsina)
Colemanite
6.5 x 4.5 x 3cm -
Colemanite
Billie Mine, Ryan, Furnace Creek District (Death Valley area), Inyo County, California, USA
4.3 x 5.5 cm (Author: crosstimber)Colemanite
Billie Mine, Ryan, -
Colemanite
Kestelek Mine, Mustafakemalpascha, Bandirma, Turkey
120 x 90 x 50 mm (Author: Rob Schnerr)Colemanite
Kestelek Mine, Must -
Colemanite
Boron, Kramer District (Kramer Borate District), Kern County, California, USA
5.4 x 3.0 x 2.7 cm (Author: Michael Shaw)Colemanite
Boron, Kramer Distr -
Colemanite
Death Valley, Inyo County, California, USA
8 x 8.5 x 5 cm / main crystal: 7.3 cm (Author: MIM Museum)Colemanite
Death Valley, Inyo -
Collage Quartz (Author: Tobi)
Collage Quartz
-
Madem-Lakko Mine, Stratoni operations, Cassandra Mines, Chalkidiki Prefecture, Macedonia Department, Greece
5.1 × 4.2 × 2.7 cm (Author: Jordi Fabre)Collected in 2010
-
Collecting just abouve the sandstone-dolostone boundary. (Author: vic rzonca)
Collecting just abouve the sandsto
-
Collecting minerals is sometimes quite a funny thing. You find them where you don´t consider them to be. This gypsum comes from the Jordansprudel, a mineral spring near Bad Oeynhausen, Westphalia. The crystals sometimes really plug the water pipes... (Author: Andreas Gerstenberg)
Collecting minerals is sometimes q
-
Annaberg District, Erzgebirgskreis, Saxony/Sachsen, Germany
(Author: Jesse Fisher)collection of old labels that came
-
In den Dellen Quarries, Niedermendig, Mendig, Mayen-Koblenz District, Eifel, Rhineland-Palatinate/Rheinland-Pfalz, Germany
Specimen height 7 cm (Author: Tobi)Collection: Mineralogical Museum M
-
color of terminations. (Author: parfaitelumiere)
color of terminations.
-
color of the body. (Author: parfaitelumiere)
color of the body.
-
Color-zoned and very gemmy Fluorite on Calcite from Yaogangxian mine, China. Measures 5.2 x 6.4 x 4 cm and weighs 75 grams (Author: VRigatti)
Color-zoned and very gemmy Fluorit
-
Color-zoned fluorite from Okorusu Mine, Namibia. 4x2x2 cm. (Author: Jessica Simonoff)
Color-zoned fluorite from Okorusu
-
Colorado Phenakite from Mt Antero, 9 mm long (Autor: nurbo)
Colorado Phenakite from Mt Ant
-
Colorado Phenakite, 5 x 4 mm Mt Antero Colorado (Author: nurbo)
Colorado Phenakite, 5 x 4 mm Mt An
-
Wieliczka Mine, Wieliczka, Małopolskie, Poland
4.1 x 5.4 cm (Author: crosstimber)Colorless cubic halite crystals to
-
Columbia River Jasper
The larger one is 7.8cm x 4.6cm x 2.7cm
The smaller one 3.2cm x 2.4cm (Author: Screenname)
Columbia River Ja
The larger one is -
Columbita. 2,0 cm X 1,0 cm X 0,6 cm
Linópolis, Divino das Laranjeiras, Minas Gerais, Brasil. (Author: silvio steinhaus)
Columbita. 2,0 cm
Linópolis, Divino -
Columbite
Toca da Onca Mine, Barra de Salinas, Minas Gerais, Brazil
3.0 x 3.5 cm.
Loose doubly-terminated submetallic black columbite crystals in parallel growth. (Author: crosstimber)
Columbite Toca da Onca Mine, Barra
-
Columbite, Uraninite, Feldspar
Ray Mica Mine, Hurricane Mountain, Burnsville, Spruce Pine District, Yancey County, North Carolina, USA
77 mm x 70 mm x 55 mm (Author: Robert Seitz)Columbite, Uraninite, Feldspar
Ray Mica Mine, Hurricane Mountain, Burnsville, Spruce Pine District, Yancey County, North Carolina, US -
Columbite-(Fe) on Albite
Dara-i-Pech pegmatite, Chapa Dara District, Kunar Province (Konar), Afghanistan
8 x 6.5 x 8 cm / main crystal: 4 cm (Author: MIM Museum)Columbite-(Fe) on Albite
Dara- -
Columbite-(Fe)
Poudrette Quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
FOV = 1.2mm (Author: Doug)Columbite-(Fe)
Poudrette Quarr -
Columbite-(Fe)
Spargoville, Coolgardie Shire, Western Australia, Australia
80 X 50 X 33 mm (Author: Robert Seitz)Columbite-(Fe)
Spargoville, Co -
Columbite-(Fe)
Spargoville, Coolgardie Shire, Western Australia, Australia
80 X 50 X 33 mm (Author: Robert Seitz)Columbite-(Fe)
Spargoville, Co -
Columbite-Fe
Senhora da Assunção Mine, Aldeia Nova, Ferreira de Aves, Sátão, Viseu District, Portugal
(Author: Cesar M. Salvan)Columbite-Fe
Senhora da Assun� -
Colusite
La Facciata Quarry, Carrara, Apuan Alps, Massa-Carrara Province, Tuscany, Italy
FOV of 3.25mm (Author: ofarcis)Colusite
La Facciata Quarry, C -
Colusite
Fantiscritti Quarrying Basin, Carrara, Apuan Alps, Massa-Carrara Province, Tuscany, Italy
37 x 27 mm (Author: Sante Celiberti)Colusite
Fantiscritti Quarryin -
Common Opal
Virgin Valley, Humboldt County, Nevada, USA
6.8 x 6.1 x 3.2 cm (Author: Michael Shaw)Common Opal
Virgin Valley, Hum -
Compact spherical aggregate of graphite crystals partially dissolved from enclosing calcite matrix. (1-mm diameter) (Author: John Jaszczak)
Compact spherical aggregate of gra
-
complete vug of adamite..var cuprian. 25 cm across 2008 find (Author: Peter Megaw)
complete vug of adamite..var cupri
-
Composite cross section across the Ojuela Chimney orebodies...modified from Villarello, 1906, International Geologic Congress, Paris. This from the Mineralogical Record issue on Ojuela...they used my original copy of Villarello to make this, so i feel entitled to pass it on (Author: Peter Megaw)
Composite cross section across the
-
Composite photograph of two views of a beryl crystal with helical inclusions. (Author: xenolithos)
Composite photograph of two views
-
Conichalcite
Dolores Mine - Pastrana - Mazarrón - Murcia - Spain
10,5 x 5 cm (Author: panchito28)
Conichalcite Dolores Mine - Pastra
-
Conichalcite
Dolores Mine - Pastrana - Mazarrón - Murcia - Spain
10,5 x 5 cm (Author: panchito28)
Conichalcite Dolores Mine - Pastra
-
Conichalcite
Dolores Mine - Pastrana - Mazarrón - Murcia - Spain
10,5 x 5 cm (Author: panchito28)
Conichalcite Dolores Mine - Pastra
-
Conichalcite
Mina Cobre Pampa. Nazca. Ica. Peru
FOV 7,74mm
2,7x. Focus rail MacroRail. Canon EOS 600D. Ikea lights
Photo: Oscar Fernández Arcís, Mineral: Manuel de Torres (Author: ofarcis)
Conichalcite Mina Cobre Pampa. Naz
-
Conichalcite
Mina Cobre Pampa. Nazca. Ica. Peru
FOV 7,57mm
2,7x. Focus rail MacroRail. Canon EOS 600D. Ikea lights
Photo: Oscar Fernández Arcís, Mineral: Manuel de Torres (Author: ofarcis)
Conichalcite Mina Cobre Pampa. Naz
-
Conichalcite
Ojuela Mine, Mapimi, Durango, Mexico.
Conichalcite spray 2 mm (Author: nurbo)
Conichalcite Ojuela Mine, Mapimi,
-
Conichalcite - María Josefa Mine, Rodalquilar, Almería, Spain (Author: Rewitzer Christian)
Conichalcite - María Josefa Mine,
-
Conichalcite - Tsumeb, Namibia. 3 mm. (Author: Rewitzer Christian)
Conichalcite - Tsumeb, Namibia. 3
-
Conichalcite and Calcite
Ojuela Mine, Mapimí, Municipio Mapimí, Durango, Mexico
110mm x 60mm x 30mm (Author: Philippe Durand)Conichalcite and Calcite
Ojuel -
Conichalcite over Austinite
Ojuela Mine, Mapimí, Municipio Mapimí, Durango, Mexico
(Author: crosstimber)Conichalcite over Austinite
Oj -
Conichalcite ps. hemimorphite
Ojuela Mine, Mapimi, Durango, Mexico
5.3 x 11.5 cm.
Bright green conichalcite replacing radiating groups of hemimorphite on typical brown gossan matrix. (Author: crosstimber)
Conichalcite ps. hemimorphite Ojue
-
Conichalcite with Olivenite - Lavrion, Greece. 3 mm . (Author: Rewitzer Christian)
Conichalcite with Olivenite - Lavr
-
Conichalcite, Calcite
Gold Hill Mine (Western Utah Mine), Gold Hill, Gold Hill District (Clifton District), Deep Creek Mts, Tooele Co., Utah, USA
Specimen size 8 cm (Author: Tobi)
Conichalcite, Calcite Gold Hill Mi
-
Conichalcite, Calcite
Ojuela Mine, Mapimí, Municipio Mapimí, Durango, Mexico
17 x 12 cm (Author: Don Lum)Conichalcite, Calcite
Ojuela M -
Conichalcite, Calcite
Gold Hill Mine, Gold Hill, Gold Hill District, Tooele County, Utah, USA
8 cm (Author: Tobi)Conichalcite, Calcite
Gold Hil -
Conichalcite, Hemimorphite
Bob Montgomery Claim Group, Peloncillo Mountains, Granite Gap, San Simon District, Hidalgo County, New Mexico, USA
FOV = 4.0 mm (Author: Doug)Conichalcite, Hemimorphite
Bob -
Conichalcite
Gold Hill, Utah, USA
Field of view 30 mm (Author: Tobi)
Conichalcite
Gold Hill, Utah, -
Conichalcite
Ojuela Mine, Mapimí, Municipio Mapimí, Durango, Mexico
5.7 x 3.2 x 1.9 cm (Author: JC)Conichalcite
Ojuela Mine, Mapi -
Conichalcite
Gold Hill Mine, Gold Hill, Gold Hill District, Tooele County, Utah, USA
FOV = 1.5 mm (Author: Doug)Conichalcite
Gold Hill Mine, G -
Conichalcite
Gold Hill Mine, Gold Hill, Gold Hill District, Tooele County, Utah, USA
FOV = 1.6 mm (Author: Doug)Conichalcite
Gold Hill Mine, G -
Conichalcite
Gold Hill Mine, Gold Hill, Gold Hill District, Tooele County, Utah, USA
FOV = 1.2 mm (Author: Doug)Conichalcite
Gold Hill Mine, G -
Conichalcite
Mohawk Mine, Mohawk Hill, Clark Mountains, Clark Mountain District (Clark District), San Bernardino County, California, USA
FOV = 1.3 mm (Author: Doug)Conichalcite
Mohawk Mine, Moha -
Conichalcite
Hilarion Mine, Hilarion area, Kamariza Mines, Agios Konstantinos, Lavrion Mining District, Attikí (Attica) Prefecture, Greece
FOV = 4.0 mm (Author: Doug)Conichalcite
Hilarion Mine, Hi -
Conichalcite
Loma de las Minillas, Fiñana, Municipio Fiñana, Comarca Los Filabres-Tabernas, Almería, Andalusia, Spain
FOV 2mm (Author: Carlos Pareja)Conichalcite
Loma de las Minil -
Conichalcite
Lavrion Mining District, Attikí (Attica) Prefecture, Greece
2,5 x 1,5 cm (Author: Volkmar Stingl)Conichalcite
Lavrion Mining Di -
Conichalcite
Gold Hill Mine, Gold Hill, Gold Hill District, Tooele County, Utah, USA
4,5 x 3,5 cm (Author: Volkmar Stingl)Conichalcite
Gold Hill Mine, G -
Conichalcite
Gold Hill Mine, Gold Hill, Gold Hill District, Tooele County, Utah, USA
4 x 2 cm (Author: Volkmar Stingl)Conichalcite
Gold Hill Mine, G -
Conichalcite
Prevision Mine, De los Cocones Ravine, Fiñana, Comarca Los Filabres-Tabernas, Almería, Andalusia, Spain
FOV 5mm (Author: Carlos Pareja)Conichalcite
Prevision Mine, D -
Connellite and Buttgenbachite
Casualidad Mine, Cordillera de los Picachos, Baños de Sierra Alhamilla, Pechina, Comarca Metropolitana de Almería, Almería, Andalusia, Spain
FOV 1,2 mm (Author: Rewitzer Christian)Connellite and Buttgenbachite
-
Connellite and Buttgenbachite
Casualidad Mine, Cordillera de los Picachos, Baños de Sierra Alhamilla, Pechina, Comarca Metropolitana de Almería, Almería, Andalusia, Spain
FOV 2,4 mm (Author: Rewitzer Christian)Connellite and Buttgenbachite
-
Connellite
Cuesta Alta Mine, Cerro Minado, Huércal-Overa, Comarca Levante Almeriense, Almería, Andalusia, Spain
fov 2 mm (Author: Rewitzer Christian)Connellite
Cuesta Alta Mine, C -
Connellite
Gold Hill Mine, Gold Hill, Gold Hill District, Tooele County, Utah, USA
FOV = 1.3 mm (Author: Doug)Connellite
Gold Hill Mine, Gol -
Connellite
Gold Hill Mine, Gold Hill, Gold Hill District, Tooele County, Utah, USA
FOV = 2.5 mm (Author: Doug)Connellite
Gold Hill Mine, Gol -
Contact zone between the peg and host rock...err..host dirt (Author: Jason)
Contact zone between the peg and h
-
cookeite & apatite in quartz - Brazil - 6-2-45 Feather.jpg (Author: John S. White)
cookeite & apatite in quartz -
-
Cookeite and Pyrite
Ampliación a Victoria Mine, De Alcarama Range, Navajún, Comarca Cervera, La Rioja, Spain
13mm on edge pyrite (Author: Firmo Espinar)Cookeite and Pyrite
Ampliació -
Cookeite, Quartz (variety faden)
Stand-on-Your-Head No. 1 Mine, Bland, Saline County, Arkansas, USA
65mm x 39mm x 26mm (Author: Don Lum)Cookeite, Quartz (variety faden)
Stand-on-Your-Head No. 1 Mine, Bland, Saline County, Arkansas, -
Cookeite, Quartz
Stand-on-Your-Head No. 1 Mine, Bland, Saline County, Arkansas, USA
91 mm x 60 mm x 47 mm (Author: Don Lum)Cookeite, Quartz
Stand-on-Your -
Cookeite, Quartz
Stand-on-Your-Head No. 1 Mine, Bland, Saline County, Arkansas, USA
91 mm x 60 mm x 47 mm (Author: Don Lum)Cookeite, Quartz
Stand-on-Your -
Cookeite, Quartz
Stand-on-Your-Head No. 1 Mine, Bland, Saline County, Arkansas, USA
116 mm x 56 mm x 42 mm (Author: Don Lum)Cookeite, Quartz
Stand-on-Your -
Cookeite, Quartz
Stand-on-Your-Head No. 1 Mine, Bland, Saline County, Arkansas, USA
116 mm x 56 mm x 42 mm (Author: Don Lum)Cookeite, Quartz
Stand-on-Your -
Cookeite, Quartz
Stand-on-Your-Head No. 1 Mine, Bland, Saline County, Arkansas, USA
116 mm x 56 mm x 42 mm (Author: Don Lum)Cookeite, Quartz
Stand-on-Your -
Cookeite, Quartz
Stand-on-Your-Head No. 1 Mine, Bland, Saline County, Arkansas, USA
116 mm x 56 mm x 42 mm (Author: Don Lum)Cookeite, Quartz
Stand-on-Your -
Cookeite, Quartz
Stand-on-Your-Head No. 1 Mine, Bland, Saline County, Arkansas, USA
85mm x 63mm x 37mm (Author: Don Lum)Cookeite, Quartz
Stand-on-Your -
Cookeite, Quartz
Stand-on-Your-Head No. 1 Mine, Bland, Saline County, Arkansas, USA
125mm x 77mm x 65mm (Author: Don Lum)Cookeite, Quartz
Stand-on-Your -
Cookeite, Quartz
Stand-on-Your-Head No. 1 Mine, Bland, Saline County, Arkansas, USA
37mm x 22mm x 13mm (Author: Don Lum)Cookeite, Quartz
Stand-on-Your -
Cookeite, Quartz
Stand-on-Your-Head No. 1 Mine, Bland, Saline County, Arkansas, USA
42mm x 37mm x 22mm (Author: Don Lum)Cookeite, Quartz
Stand-on-Your -
Cookeite, Quartz
Stand-on-Your-Head No. 1 Mine, Bland, Saline County, Arkansas, USA
50mm x 35mm x 42mm (Author: Don Lum)Cookeite, Quartz
Stand-on-Your -
Cookeite
Green's Crystal Mine, Paron, Saline County, Arkansas, USA
7.5 x 11.5 cm, FOV ~ 2.0 cm (Author: crosstimber)Cookeite
Green's Crystal Mine, -
Cookeite
Green's Crystal Mine, Paron, Saline County, Arkansas, USA
7.5 x 11.5 cm (Author: crosstimber)Cookeite
Green's Crystal Mine, -
Cópia de Maraba Amethyst Mine (32).jpg (Author: GBS)
Cópia de Maraba Amethyst Mine (32)
-
Cópia de Maraba Amethyst Mine (33).jpg (Author: GBS)
Cópia de Maraba Amethyst Mine (33)
-
Copper
14.4 x 1.4 cm
Dzhezhazgan Mine, Dzhezhazgan, Dzhezhazgan Oblast, Russia
copper spinel twin (Author: Don Lum)
Copper 14.4 x 1.4 cm Dzhezhazgan M
-
Copper
6.5 x 10.5 cm.
Copper Queen Mine, Bisbee, Warren District, Cochise Co., Arizona
Crystallized copper interspersed with patches of red cuprite. (Author: crosstimber)
Copper 6.5 x 10.5 cm. Copper Queen
-
Copper
Adventure Mine, Ontonagon Co., Michigan
3.1 x 5.2 cm
Self collected. (Author: crosstimber)
Copper Adventure Mine, Ontonagon C
-
Copper
Bergmannstrost Mine, Ems, Nassau, Germany
Label of this specimen (Author: Roger Warin)
Copper Bergmannstrost Mine, Ems, N
-
Copper
Bergmannstrost Mine, Ems, Nassau, Germany
Known by Romans and throughout the Middle Ages. (Author: Roger Warin)
Copper Bergmannstrost Mine, Ems, N
-
Copper
Big Creek Mine, Encampment District, Carbon County, Wyoming, USA
6.0 cm. x 6.0 cm.
Photo: Bob Weaver
Again, Bob Weaver supplied the photo which heads this thread of Wyoming. One more time, thank you Bob! (Author: Jordi Fabre)
Copper Big Creek Mine, Encampment
-
Copper
Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA
7,5x3x2 cm
Crystallized Copper with minor Cuprite. Ex B. Carretta. (Author: Simone Citon)
Copper Bisbee, Warren District, Mu
-
Copper
Boinás est. Begega. Belmonte. Asturias. Spain.
FOV 10.35mm
2x. Focus rail MacroRail. Canon EOS 600D. Ikea lights
Photo: Oscar Fernández Arcís, Mineral: Manuel de Torres (Author: ofarcis)
Copper Boinás est. Begega. Belmont
-
Copper
Botallack Mine, St Just, Cornwall,England, UK
3x2"
Ex Col Williams - Burncoose Assay Office Collection. Williams collection number 112. Although attributed to "probably Wh Basset" by Williams, the specimen came from the Bolitho collection (the Bolithos were a well known Penzance mining family and operated the largest tin smelting house in Cornwall during the 19th century and until 1912), so the specimen is much more likely to be from one of the St. Just mines.
Specifically, the specimen is like other wire coppers from Botallack Mine and thus possibly dates to c1804 when other specimens of this type were collected. (Author: ian jones)
Copper Botallack Mine, St Just, Co
-
Copper
Broken Hill mines, Broken Hill, Yancowinna Co., New South Wales, Australia
5.5 x 6.0 cm
Smithsonian label for copper. (Author: crosstimber)
Copper Broken Hill mines, Broken H
-
Copper
Broken Hill mines, Broken Hill, Yancowinna Co., New South Wales, Australia
5.5 x 6.0 cm
Native copper with twinned crystals arranged in a feather pattern. Ex. Washington A. Roebling Collection. (Author: crosstimber)
Copper Broken Hill mines, Broken H
-
Copper
Central Mine, Central, Keweenaw Co., Michigan, USA
60 mm x 38 mm x 16 mm (Author: Carles Millan)
Copper Central Mine, Central, Kewe
-
Copper
Central Mine, Central, Keweenaw County, Michigan, USA
4.3 x 3.1 cm (Author: Don Lum)
Copper Central Mine, Central, Kewe
-
Copper
Central Mine, Central, Keweenaw County, Michigan, USA
3.5 x 2.5 cm
native copper twin
ex Sal Avella
ex Phil Scalisi (Author: Don Lum)
Copper Central Mine, Central, Kewe
-
Copper
Central Mine, Central, Keweenaw County, Michigan, USA
3.5 x 2.5 cm
native copper twin
ex Sal Avella
ex Phil Scalisi (Author: Don Lum)
Copper Central Mine, Central, Kewe
-
Copper
Central Mine, Central, Keweenaw County, Michigan, USA
10.5 x 3.2 cm (Author: Don Lum)
Copper Central Mine, Central, Kewe
-
Copper
Chimney Rock quarry, Bound Brook, New Jersey, USA
8.5X6.8 cm
The Chimney Rock quarry was on the site of an old copper mine. A copper chunk around 90 lbs. jammed the crusher during the quarrying operation. I believe it is still in the Rutgers collection. During my collecting there, I found mainly calcites, analcimes, traces of copper minerals and a prehnite or two. (Author: John Medici)
Copper Chimney Rock quarry, Bound
-
Copper
Chimney Rock Quarry, Bridgewater, Somerset County, New Jersey, USA
5 x 5 cm
Crystallized copper with chrysocolla (Author: Frank Imbriacco)
Copper Chimney Rock Quarry, Bridge
-
Copper
Chino Mine, East Pit, 5100 Bench, near Bayard, Grant Co., New Mexico
1.7 x 5.5 cm.
Spinel-twinned copper crystals with a nice patina. (Author: crosstimber)
Copper Chino Mine, East Pit, 5100
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Copper
Chino Mine, Santa Rita, Grant County, New Mexico, USA
45 x 10 mm
spinel twin copper crystal (Author: Don Lum)
Copper Chino Mine, Santa Rita, Gra
-
Copper
Chino Mine, Santa Rita, Grant County, New Mexico, USA
45 x 10 mm
spinel twin copper crystal (Author: Don Lum)
Copper Chino Mine, Santa Rita, Gra
-
Copper
Chino Mine, Santa Rita, Grant County, New Mexico, USA
4.1 x 1.5 cm
copper spinel twin (Author: Don Lum)
Copper Chino Mine, Santa Rita, Gra
-
Copper
Chino Mine, Santa Rita, Santa Rita District, Grant Co., New Mexico, USA
4.7 x 1.4 x 1.2 cm (Author: am mizunaka)
Copper Chino Mine, Santa Rita, San
-
Copper
Clark Mine, Copper Harbor, Keweenaw County, Michigan, USA
11.5 x 6.5 x 4.3 cm (Author: Don Lum)
Copper Clark Mine, Copper Harbor,
-
Copper
Clark Mine, Copper Harbour, Keeweenaw County, Michigan, USA
11.5 x 6.5 x 4.3 cm (Author: Don Lum)
Copper Clark Mine, Copper Harbour,
-
Copper
Clark Mine, Copper Harbour, Keeweenaw County, Michigan, USA
11.5 x 6.5 x 4.3 cm (Author: Don Lum)
Copper Clark Mine, Copper Harbour,
-
Copper
Clark Mine, Copper Harbour, Keeweenaw County, Michigan, USA
11.5 x 6.5 x 4.3 cm (Author: Don Lum)
Copper Clark Mine, Copper Harbour,
-
Copper
Clark Mine, Copper Harbour, Keeweenaw County, Michigan, USA
11.5 x 6.5 x 4.3 cm
Previously posted, better pictures (Author: Don Lum)
Copper Clark Mine, Copper Harbour,
-
Copper
Cole Shaft, Bisbee, Warren District, Mule Mountains, Cochise County, Arizona, USA
7.0 x 6.0 cm
cubic copper crystals (Author: Don Lum)
Copper Cole Shaft, Bisbee, Warren
-
Copper
Cole Shaft, Bisbee, Warren District, Mule Mountains, Cochise County, Arizona, USA
7.0 x 6.0 cm
cubic copper crystals (Author: Don Lum)
Copper Cole Shaft, Bisbee, Warren
-
Copper
Cole Shaft, Bisbee, Warren District, Mule Mountains, Cochise County, Arizona, USA
7.0 x 6.0 cm
cubic copper crystals (Author: Don Lum)
Copper Cole Shaft, Bisbee, Warren
-
Copper
Colonial Copper Mine, Bennet Brook, Cape D’Or, Cumberland Co., Nova Scotia, Canada
2.3 x 2.7 cm. (Author: crosstimber)
Copper Colonial Copper Mine, Benne
-
Copper
Corocoro, Pacajes Province, La Paz Department, Bolivia
2.0 x 3.0 cm.
Sharp pseudomorph of native copper after aragonite. (Author: crosstimber)
Copper Corocoro, Pacajes Province,
-
Copper
Dzhezkazgan Mine, Dzhezkazgan, Karagandy Province, Kazakhstan
12x8x0,2 cm
Large, flattened Copper. (Author: Simone Citon)
Copper Dzhezkazgan Mine, Dzhezkazg
-
Copper
Dzhezkazgan Mine, Kazakhstan
8 mm (Author: ploum)
Copper Dzhezkazgan Mine, Kazakhsta
-
Copper
Friedrichssegen mine, Bad Ems, Rhineland-Palatinate, Germany
8 x 3,5 cm (Author: Andreas Gerstenberg)
Copper Friedrichssegen mine, Bad
-
Copper
Great Sand Bay, Eagle Harbor, Lake Superior, Michigan
close up of what appears to be an octahedral crystal but is probably a dodecahedron... (Author: John Jaszczak)
Copper Great Sand Bay, Eagle Harbo
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Copper
Great Sand Bay, Eagle Harbor, Lake Superior, Michigan
3x4 cm (Author: John Jaszczak)
Copper Great Sand Bay, Eagle Harbo
-
Copper
Isle Royale Mines, Houghton, Houghton Co., Michigan, USA
8x7 cm.
The old label from 1904 (Author: supertxango)
Copper Isle Royale Mines, Houghton
-
Copper
Isle Royale Mines, Houghton, Houghton Co., Michigan, USA
8x7 cm.
Fot. & Col. Juan Hernandez.
Adquired in July of 2007. (Author: supertxango)
Copper Isle Royale Mines, Houghton
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Copper
Laurium Mine, Laurium, Houghton County, Michigan, USA
83 x 77 x 30 mm (Author: GneissWare)
Copper Laurium Mine, Laurium, Houg
-
Copper
Michigan, USA (no more detailed information, sorry)
Height 60 mm (Author: Tobi)
Copper Michigan, USA (no more deta
-
Copper
Northwestern Mine, Central, Keweenaw County, Michigan, USA
4.9 x 3.4 x 3.1 cm
The Northwestern Mine consists of 4 shafts and at least 1 adit. The Northwestern Mining Company was organized in 1845 and then reorganized in 1848. Work continued until 1857 and resumed again in 1863. All work ceased in 1865 and was absorbed by the Central Mining Company shortly after. 313,000 lbs. of refined copper was recovered from the mine. Copper, silver, analcime, and prehnite can be found on the poor-rock piles. Ref mindat.org (Author: Don Lum)
Copper Northwestern Mine, Central,
-
Copper
Northwestern Mine, Central, Keweenaw County, Michigan, USA
4.9 x 3.4 x 3.1 cm
The Northwestern Mine consists of 4 shafts and at least 1 adit. The Northwestern Mining Company was organized in 1845 and then reorganized in 1848. Work continued until 1857 and resumed again in 1863. All work ceased in 1865 and was absorbed by the Central Mining Company shortly after. 313,000 lbs. of refined copper was recovered from the mine. Copper, silver, analcime, and prehnite can be found on the poor-rock piles. Ref. mindat.org (Author: Don Lum)
Copper Northwestern Mine, Central,
-
Copper
Ojibway Mine, Ojibway, Keweenaw County, Michigan, USA
4.3 x 3.3 cm (Author: Don Lum)
Copper Ojibway Mine, Ojibway, Kewe
-
Copper
Onganja Mine, Seeis, Windhoek District, Namibia
4.0 x 7.2 cm
A branching group of elongated dodecahedrons, lightly coated with cuprite and minor malachite. (Author: crosstimber)
Copper Onganja Mine, Seeis, Windho
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Copper
Oumjrane Mine, Alnif, Tarhbalt, Er Rachidia Province, Morocco
3.5 x 8.0 cm.
An elongated plate of native copper with small octahedral crystals and a light coating of green malachite. (Author: crosstimber)
Copper Oumjrane Mine, Alnif, Tarhb
-
Copper
Phoenix Mine, Keweenaw Co., Michigan
6.3 x 7.5 cm (Author: crosstimber)
Copper Phoenix Mine, Keweenaw Co.,
-
Copper
Phoenix Mine, Phoenix, Keweenaw County, Michigan, USA
5.0 x 3.0 cm (Author: Don Lum)
Copper Phoenix Mine, Phoenix, Kewe
-
Copper
Phoenix Mine, Phoenix, Keweenaw County, Michigan, USA
5.0 x 3.0 cm (Author: Don Lum)
Copper Phoenix Mine, Phoenix, Kewe
-
Copper
Poteryaevskoe Mine, Rubtsovskoe Cu-Zn-Pb deposit, Rudnyi Altai, Western-Siberian Region, Russia
5.0 x 6.7 cm
Sharply crystallized arborescent copper. The crystals are predominantly distorted octahedrons and have a nice reddish cuprite patina (Author: crosstimber)
Copper Poteryaevskoe Mine, Rubtsov
-
Copper
Ray Mine, Pinal County, Arizona, USA
5.3 x 4.0 cm (Author: Don Lum)
Copper Ray Mine, Pinal County, Ari
-
Copper
Relistian Mine, Gwinear, Cornwall, England
2.9 x 4.2 cm.
Back side of the above specimen. (Author: crosstimber)
Copper Relistian Mine, Gwinear, Co
-
Copper
Relistian Mine, Gwinear, Cornwall, England
2.9 x 4.2 cm.
An arborescent group of well-defined crystals. (Author: crosstimber)
Copper Relistian Mine, Gwinear, Co
-
Copper
Rubtsovskoe Cu-Zn-Pb deposit, Rudnyi Altai, Altaiskii Krai, Western-Siberian Region, Russia
3,5x2,5x1,5 cm
Crystallized, sculptural Copper. (Author: Simone Citon)
Copper Rubtsovskoe Cu-Zn-Pb deposi
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Copper
San Agustín Mine, Corocoro, Pacajes Province, La Paz Department, Bolivia
87 mm x 29 mm x 11 mm
Mindat.org Photo of the Day - 29th Nov 2011 (Author: Carles Millan)
Copper San Agustín Mine, Corocoro,
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Copper
San Agustín Mine, Corocoro, Pacajes Province, La Paz Department, Bolivia
87 mm x 29 mm x 11 mm
Back view (Author: Carles Millan)
Copper San Agustín Mine, Corocoro,
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Copper
Sar Cheshmeh (Sarcheshmeh) Mine, Pariz, Kerman Province, Iran
4.5 cm (Author: h.abbasi)
Copper Sar Cheshmeh (Sarcheshmeh)
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Copper
Tsumeb Mine, Tsumeb, Otavi, Namibia
5x2,2x1,5 cm
Old sample of Tsumeb Copper. (Author: Simone Citon)
Copper Tsumeb Mine, Tsumeb, Otavi,
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Copper
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
5.1 x 4.8 cm (Author: Don Lum)
Copper Tsumeb Mine, Tsumeb, Otjiko
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Copper ( spinel twins )
New Cornelia Mine, Ajo District, Pima County, Arizona, USA
153 x 121 x 106 mm
ex. Dr. David Roter collection;
ex. Williams Minerals specimen;
ex. Royal C. Gould collection (Author: GneissWare)
Copper ( spinel twins ) New Cornel
-
Copper (variety native copper)
New Cornelia Mine, Ajo, Little Ajo Mountains, Ajo District, Pima County, Arizona, USA
73 mm x 53 mm x 14 mm (Author: Don Lum)Copper (variety native copper)
New Cornelia Mine, Ajo, Little Ajo Mountains, Ajo District, Pima County, Arizona, US -
Copper - El Horcajo, Ciudad Real, Spain.
Field of view:1.6 mm (Author: Rewitzer Christian)
Copper - El Horca
Field of view:1.6 -
Copper after Aragonite
Corocoro, Pacajes Province, La Paz Department, Bolivia
3.0 x 3.7 cm (Author: am mizunaka)Copper after Aragonite
Corocor -
Copper after Azurite
Copper Rose Mine
Grant Co., New Mexico
4.0 x 3.0 cm (Author: rweaver)
Copper after Azur
Copper Rose Mine -
Copper after Azurite
Chino Mine, Santa Rita, Santa Rita District, Grant County, New Mexico, USA
44 mm x 38 mm x 32 mm (Author: Don Lum)Copper after Azurite
Chino Min -
Copper after Cuprite
Poteryaevskoe Mine, Rubtsovsky District, Altai Krai, Russia
175 mm x 115 mm x 105 mm (Author: Don Lum)Copper after Cuprite
Poteryaev -
Copper alterated to malachite and cuprite xls. 6 cm aggregate from Mina mine, Marsberg, Sauerland, Westphalia. (Author: Andreas Gerstenberg)
Copper alterated to malachite and
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Copper and Calcite
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
45x30mm (Author: Heimo Hellwig)Copper and Calcite
Tsumeb Mine -
Copper and Calcite
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
45x30mm (Author: Heimo Hellwig)Copper and Calcite
Tsumeb Mine -
Copper and Calcite
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
50x35mm (Author: Heimo Hellwig)Copper and Calcite
Tsumeb Mine -
Copper and Calcite
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
50x35mm (Author: Heimo Hellwig)Copper and Calcite
Tsumeb Mine -
Copper and Cuprite
Poteryaevskoe Mine, Rubtsovsky District, Altai Krai, Russia
16,0 x 11,0 x 16,0 cm (Author: MIM Museum)Copper and Cuprite
Poteryaevsk -
Copper and Cuprite
Poteryaevskoe Mine, Rubtsovsky District, Altai Krai, Russia
10,5 x 6,0 x 6,0 cm (Author: MIM Museum)Copper and Cuprite
Poteryaevsk -
Copper and Malachite
Bou Nahas Mine, Oumjrane mining area, Alnif Commune, Tinghir Province, Drâa-Tafilalet Region, Morocco
190 X 70 mm (Author: Manuel Mesa)Copper and Malachite
Bou Nahas -
Copper and Malachite
Ray Mines, Scott Mountain area, Mineral Creek District, Dripping Spring Mountains, Pinal County, Arizona, USA
3.2 × 2.4 × 0.8 cm (Author: Jordi Fabre)Copper and Malachite
Ray Mines -
Copper and Pyrite
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
46mm x 25mm (Author: Heimo Hellwig)Copper and Pyrite
Tsumeb Mine, -
COPPER CATHODE PROCESSING
The journey of Copper from electrolyte to a marketable product culminates in the crucial post-electrowinning phase at the Copper cathode plant. Once the electrowinning cycle was complete, the cells yielded crude Copper cathodes – substantial Copper sheets adhering to reusable stainless steel blanks. The initial, highly mechanized step involved the precise removal of these Copper sheets. Automated stripping machines were employed, designed to efficiently peel the deposited Copper from the inert cathode blanks without damaging either the valuable Copper or the blanks, which were immediately returned to the electrolytic cells for reuse.
After separation, these raw Copper sheets, often referred to as full plates, underwent further refinement. They were then conveyed to a trimming station where hydraulic shears or guillotines cut them to precise, standardized dimensions. This sizing ensured uniformity for subsequent handling, packaging, and adherence to customer specifications. While the electrowinning process itself yielded high-purity Copper, a final surface preparation, usually a thorough rinse with demineralized water, was performed to remove any residual electrolyte, dust, or minor surface impurities. This step ensured the pristine quality and appearance of the final product.
Finally, the prepared Copper cathodes were systematically stacked. They were typically stacked horizontally, often on pallets, in precise numbers – commonly 20 to 50 sheets per stack, depending on the cathode thickness and desired bundle weight. These stacks were then bound with steel strapping, ready for weighing, quality inspection, and dispatch to various industries worldwide.
To transform these cathodes into various Copper products, they were subjected to further processing at facilities exterior to the mine. This usually involved melting the cathodes in a shaft furnace, followed by continuous casting and rolling. The molten Copper was cast into a suitable form, often a thick slab or strip, which was then passed through a series of rolling mills. This mechanical working reduced the thickness of the Copper, enhances its grain structure, and improved its mechanical properties; ultimately producing high-quality Copper sheets of the desired gauge and finish, maintaining the exceptional 99.99% purity.
Original photos courtesy of Salvador Rivera (Author: silvia)
COPPER CATHODE PROCESSING The jou
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Copper in agate (lacquered slab)
Calumet & Hecla Mine #21 , Calumet, Calumet Township, Houghton Co., Michigan, USA
5.5 x 4.3 x 0.9 cm
An underground copper mine consisting of 96 levels with 16 incline shafts and one vertical shaft (Red Jacket). Formed from the consolidation of the Calumet, Hecla, Portland, and Scott Mining Cos. in 1871. In 1923 the Allouez, Ahmeek, Centennial, Calumet and Hecla, and Osceola Mining Cos. merged to form the Calumet and Hecla Consolidated Copper Mining Co. All operations ceased in 1968 following a labor strike. Excellent mineral collecting, especially at #9, 10, and 12. ref mindat.org (Author: Don Lum)
Copper in agate (lacquered slab) C
-
Copper in agate (lacquered slab)
Calumet & Hecla #21 Mine, Calumet, Calumet Township, Houghton Co., Michigan, USA
5.5 x 4.3 x 0.9 cm
An underground copper mine consisting of 96 levels with 16 incline shafts and one vertical shaft (Red Jacket). Formed from the consolidation of the Calumet, Hecla, Portland, and Scott Mining Cos. in 1871. In 1923 the Allouez, Ahmeek, Centennial, Calumet and Hecla, and Osceola Mining Cos. merged to form the Calumet and Hecla Consolidated Copper Mining Co. All operations ceased in 1968 following a labor strike. Excellent mineral collecting, especially at #9, 10, and 12. ref mindat.org (Author: Don Lum)
Copper in agate (lacquered slab) C
-
Copper in calcite
Phoenix Mine, Keweenaw Co., Michigan
3.4 x 5.3 cm (Author: crosstimber)
Copper in calcite Phoenix Mine, Ke
-
Copper in Gypsum
Mission Mine, Mission complex, San Xavier, Pima mining district, Sierrita Mountains, Pima County, Arizona, USA
18 x 13 x 5 mm (Author: Rob Schnerr)Copper in Gypsum
Mission Mine, -
Copper in Quartz (variety chalcedony)
Obi Islands, North Maluku Province, Indonesia
112 mm x 107 mm x 87 mm (Author: Don Lum)Copper in Quartz (variety chalcedony)
Obi Islands, North Maluku Province, I -
Copper in quartz.
Pine Mountain, Adams Co., the mass of copper is about 3 cm across. (Author: John S. White)
Copper in quartz. Pine Mountain,
-
Copper on Calcite included with Cuprite
Czar Mine, Warren District, Bisbee, Cochise County, Arizona, USA
73 x 60 x 15 mm (Author: GneissWare)
Copper on Calcite
Czar Mine, Warren -
Copper on Calcite
St Louis Co., Minnesota
3.8cm x 3.1cm (Author: rweaver)
Copper on Calcite
St Louis Co., Min -
Copper on Calcite
Cole Mine (Cole shaft), Bisbee, Warren District, Mule Mountains, Cochise County, Arizona, USA
Copper size: 3.8 x 2.6 cm (Author: Jordi Fabre)Copper on Calcite
Cole Mine (C -
Copper on Calcite
United Verde Mine, Jerome, Verde District, Black Hills, Yavapai County, Arizona, USA
6.3cm x 3.8cm (Author: rweaver)Copper on Calcite
United Verde -
Copper on Dolomite
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
61mm x 52mm x 12mm (Author: Heimo Hellwig)Copper on Dolomite
Tsumeb Mine -
Copper on Prehnite
Adventure Mine, Greenland, Greenland Township, Ontonagon County, Michigan, USA
66 x 40 x 39 mm (Author: GneissWare)Copper on Prehnite
Adventure M -
Copper possible pseudomorph after laumontite. (Author: John Jaszczak)
Copper possible pseudomorph after
-
Copper ps. after cuprite
Poteryaevskoe Mine, Rubtsovskoe Cu-Zn-Pb deposit, Rudnyi Altai, Western-Siberian Region, Russia
2.8 x 3.0 cm
Sharp pseudomorphs of native copper after octahedral cuprite crystals. (Author: crosstimber)
Copper ps. after cuprite Poteryaev
-
Copper ps. aragonite
Corocoro, Pacajes Province, La Paz Department, Bolivia
24 mm tall x 17 mm wide (Author: Carles Millan)
Copper ps. aragonite Corocoro,
-
Copper ps. aragonite
Corocoro, Pacajes Province, La Paz Department, Bolivia
24 mm tall x 17 mm wide (Author: Carles Millan)
Copper ps. aragonite Corocoro,
-
Copper ps. aragonite
Corocoro, Pacajes Province, La Paz Department, Bolivia
24 mm tall x 17 mm wide (Author: Carles Millan)
Copper ps. aragonite Corocoro, Pac
-
Copper ps. aragonite
Corocoro, Pacajes Province, La Paz Department, Bolivia
24 mm tall x 17 mm wide (Author: Carles Millan)
Copper ps. aragonite Corocoro, Pac
-
Copper pseudomorf over Aragonite
Mina San Agustin, Corocoro, Pacajes, La Paz, Bolivia
7x3 cm (Author: Enrique Llorens)
Copper pseudomorf
Mina San Agustin, -
Copper pseudomorph after Aragonite
Corocoro, Pacajes Province, La Paz Department, Bolivia
2.8 x 2.3 x 1.4 cm
A classic pseudomorph of Copper after Aragonite. It shows a floater cyclic twinned Aragonite crystal, with a hexagonal shape, replaced by copper with some Malachite alteration. (Author: xdxucn)
Copper pseudomorph after Aragonite
-
Copper pseudomorph after cuprite
Block 1-1, Rubtsovskiy Mine, Altaiskiy Krai, Siberia, Russia
4.3 x 3.0 cm (Author: Don Lum)
Copper pseudomorph after cuprite B
-
Copper pseudomorph after cuprite
Block 1-1, Rubtsovskiy Mine, Altaiskiy Krai, Siberia, Russia
4.3 x 3.0 cm (Author: Don Lum)
Copper pseudomorph after cuprite B
-
Copper pseudomorph after cuprite
Block 1-1, Rubtsovskiy Mine, Altaiskiy Krai, Siberia, Russia
4.3 x 3.0 cm (Author: Don Lum)
Copper pseudomorph after cuprite B
-
Copper pseudomorph after Cuprite
Poteryaevskoe Mine, Altaiskiy Kray, Western Siberian Region, Russia
6.2 x 5.2 x 4.5 cm (Author: Don Lum)
Copper pseudomorph after Cuprite P
-
Copper pseudomorph after Cuprite
Poteryaevskoe Mine, Altaiskiy Kray, Western Siberian Region, Russia
6.2 x 5.2 x 4.5 cm (Author: Don Lum)
Copper pseudomorph after Cuprite P
-
Copper pseudomorph after Cuprite
Poteryaevskoe Mine, Altaiskiy Kray, Western Siberian Region, Russia
6.2 x 5.2 x 4.5 cm (Author: Don Lum)
Copper pseudomorph after Cuprite P
-
Copper pseudomorph after Cuprite
Poteryaevskoe Mine, Altaiskiy Kray, Western Siberian Region, Russia
6.2 x 5.2 x 4.5 cm (Author: Don Lum)
Copper pseudomorph after Cuprite P
-
Copper pseudomorph after Cuprite
Poteryaevskoe Mine, Altaiskiy Kray, Western Siberian Region, Russia
6.2 x 5.2 x 4.5 cm (Author: Don Lum)
Copper pseudomorph after Cuprite P
-
Copper pseudomorph after Cuprite
Poteryaevskoe Mine, Altaiskiy Kray, Western Siberian Region, Russia
6.2 x 5.2 x 4.5 cm (Author: Don Lum)
Copper pseudomorph after Cuprite P
-
Copper pseudomorph after Cuprite
Rubtsovskiy Mine, Altaiskiy Krai, Siberia, Russia
4.9 x 4.8 x 3.1 cm (Author: Don Lum)
Copper pseudomorph after Cuprite R
-
Copper pseudomorph after Cuprite
Rubtsovskiy Mine, Altaiskiy Krai, Siberia, Russia
4.9 x 4.8 x 3.1 cm (Author: Don Lum)
Copper pseudomorph after Cuprite R
-
COPPER RECOVER AND COPPER RICH SOLUTION
The images on the left showcase the heap leach pads, equipped with a sprinkler system, and the associated collection ponds containing the leached Copper solution. In the center, a simplified diagram illustrates the Copper extraction process. The upper photo on the right displays the solvent extraction plant (left) and the electrolytic plant (right). Finally, the bottom right-hand photo captures a Copper-rich solution just before it enters the second phase (stripping) at the solvent extraction plant – notice the stirrer assembly.
The heart of the hydrometallurgical process at Milpillas was heap leaching. On specially constructed, impermeable pads, the crushed ore was irrigated with a dilute sulfuric acid solution, known as the lixiviant. As the acid solution percolated through the ore pile, it selectively dissolved the Copper minerals, forming a Copper-rich solution called the pregnant leach solution (PLS). The efficiency of this stage depended on several factors, including the permeability of the ore heap, the concentration of the acid, and the contact time between the lixiviant and the Copper minerals. The Milpillas mine specifically targeted soluble Copper minerals, making heap leaching an ideal and cost-effective method for their extraction.
Following the leaching process, the pregnant leach solution, now laden with dissolved Copper, was directed to the solvent extraction (SX) plant. Solvent extraction is a purification and concentration step. In this stage, the PLS is mixed with an organic based solvent (i.e., alkyl Salicylaldoximes), which have a strong affinity for Copper ions. The Copper ions transfer from the aqueous PLS to the organic phase, leaving behind impurities in the aqueous phase now called the raffinate. This process effectively separates Copper from other undesirable elements that might have been leached from the ore. After the Copper is loaded into the organic solvent, the loaded organic phase is then stripped with a strong sulfuric acid solution, which reverses the process, transferring the concentrated Copper ions back into an aqueous solution. This resulting highly purified and concentrated Copper solution is known as the electrolyte. The final electrolytic cells then deposited high-purity Copper onto cathodes, a process that relied on a consistent and clean electrolyte composition to achieve "Grade A cathodic Copper."
Original photos courtesy of Jose Vazquez, diagram by Silvia. (Author: silvia)
COPPER RECOVER AND COPPER RICH SOL
-
Copper related mineral (I think) (Author: Pierre Joubert)
Copper related mineral (I think)
-
Copper related mineral on quartz. (Author: Pierre Joubert)
Copper related mineral on quartz.
-
Copper with Calcite
La Farola Mine, Cerro Pintado, Las Pintadas District, Tierra Amarilla, Copiapó Province, Atacama Region, Chile
58mm x 42mm x 40mm (Author: Firmo Espinar)Copper with Calcite
La Farola -
Copper with Calcite
La Farola Mine, Cerro Pintado, Las Pintadas District, Tierra Amarilla, Copiapó Province, Atacama Region, Chile
58mm x 42mm x 40mm (Author: Firmo Espinar)Copper with Calcite
La Farola -
Copper with Cuprite
New Cornelia Mine, Ajo, Little Ajo Mountains, Ajo District, Pima County, Arizona, USA
8.0cm x 5.7cm (Author: rweaver)Copper with Cuprite
New Cornel -
Copper with Malachite
Central Mine, Central, Keweenaw County, Michigan, USA
12,0 x 8,0 x 10,5 cm (Author: MIM Museum)Copper with Malachite
Central -
Copper, basalt
Lake Superior copper district, Keweenaw County, Michigan, USA
105 mm x 105 mm x 25 mm (Author: Robert Seitz)Copper, basalt
Lake Superior c -
Copper, Calcite
Cliff mine, Phoenix, Keweenaw Co., Michigan, USA
7.4 x 3.7 cm
The Scorpion (Author: Don Lum)
Copper, Calcite Cliff mine, Phoeni
-
Copper, Calcite, Datolite. Quincy mine, Hancock, MI. (Author: John Jaszczak)
Copper, Calcite, Datolite. Quincy
-
Copper, Calcite
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
90x110x30mm (Author: Heimo Hellwig)Copper, Calcite
Tsumeb Mine, T -
Copper, Calcite
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
90x110x30mm (Author: Heimo Hellwig)Copper, Calcite
Tsumeb Mine, T -
Copper, Calcite
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
90x110x30mm (Author: Heimo Hellwig)Copper, Calcite
Tsumeb Mine, T -
Copper, Calcite
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
90x110x30mm (Author: Heimo Hellwig)Copper, Calcite
Tsumeb Mine, T -
Copper, Calcite
Onganja (Emke) Mine, Helen Farm 235, Onganja mining area, Seeis, Windhoek District, Khomas Region, Namibia
41 mm x 27 mm x 21 mm (Author: Don Lum)Copper, Calcite
Onganja (Emke) -
Copper, Calcite
Onganja (Emke) Mine, Helen Farm 235, Onganja mining area, Seeis, Windhoek District, Khomas Region, Namibia
41 mm x 27 mm x 21 mm (Author: Don Lum)Copper, Calcite
Onganja (Emke) -
Copper, Caledonia Mine, Mass City, Ontonagon County, Michigan, U.S.A. 12 x 7 x 6 cm. (Author: Lumaes)
Copper, Caledonia Mine, Mass City,
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Copper, Caledonia Mine, Mass City, Ontonagon County, Michigan, U.S.A. 12 x 7 x 6 cm. (Author: Lumaes)
Copper, Caledonia Mine, Mass City,
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Copper, Caledonia Mine, Mass City, Ontonagon County, Michigan, U.S.A. 12 x 7 x 6 cm. (Author: Lumaes)
Copper, Caledonia Mine, Mass City,
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Copper, Caledonia Mine, Mass City, Ontonagon County, Michigan, U.S.A. 12 x 7 x 6 cm. (Author: Lumaes)
Copper, Caledonia Mine, Mass City,
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Copper, Cerussite
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
40x30x25mm (Author: Heimo Hellwig)Copper, Cerussite
Tsumeb Mine,
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