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Gypsum
Kerhonkson, Ulster County, New York, USA
5.2 x 1.7 x 1.2 cm (Author: Michael Shaw) -
Gypsum
Polkowice-Sieroszowice mining area, Sieroszowice, Gmina Radwanice, Polkowice, Lower Silesia Voivodeship, Poland
7.3 x 6.4 x 3.7 cm (Author: Michael Shaw) -
Gypsum
Gypsum quarries, Roccastrada, Grosseto Province, Tuscany, Italy
135 mm x 100 mm x 90 mm (Author: Firmo Espinar) -
Gypsum
Niccioleta Mine, Massa Marittima, Grosseto Province, Tuscany, Italy
(Author: Firmo Espinar) -
Gypsum
Niccioleta Mine, Massa Marittima, Grosseto Province, Tuscany, Italy
105 mm x 83 mm x 80 mm (Author: Firmo Espinar) -
Gypsum
Roccastrada, Grosseto Province, Tuscany, Italy
268 mm x 40 mm x 9 mm (Author: Firmo Espinar) -
Gypsum
Roccastrada, Grosseto Province, Tuscany, Italy
40 mm x 286 mm x 9 mm (Author: Firmo Espinar) -
Gypsum
Rio Puerco, Albuquerque, Condado Bernalillo, Bernalillo County, New Mexico, USA
10.6 x 7.2 x 4.8 cm (Author: Michael Shaw) -
Gypsum
Hagans, Monongalia County, West Virginia, USA
22.4 x 15.7 cm (Author: Michael Shaw) -
Gypsum
Chihuahuan Desert, Samalayuca, Juárez Municipality, Chihuahua, Mexico
18.0 x 9.3 x 4.8 cm (Author: Michael Shaw) -
Gypsum
Niccioleta Mine, Massa Marittima, Grosseto Province, Tuscany, Italy
Specimen size 13 x 8 cm, largest crystal 7 cm (Author: Tobi) -
Gypsum
Niccioleta Mine, Massa Marittima, Grosseto Province, Tuscany, Italy
Specimen size 13 x 8 cm, largest crystal 7 cm (Author: Tobi) -
Gypsum
Ouargla, Ouargla District, Ouargla Province, Algeria
5,2x5x3,5 cm. / 45 g (Author: DanovskiM) -
Gypsum
Idalpe, Ischgl, Landeck District, North Tyrol, Tyrol/Tirol, Austria
14 x 7 cm (Author: Volkmar Stingl) -
Gypsum
Idalpe, Ischgl, Landeck District, North Tyrol, Tyrol/Tirol, Austria
5 x 3,5 cm (Author: Volkmar Stingl) -
Gypsum
Idalpe, Ischgl, Landeck District, North Tyrol, Tyrol/Tirol, Austria
5 x 3,5 cm (Author: Volkmar Stingl) -
Gypsum
Haql, Gulf of Aqaba, Tabuk Region, Saudi Arabia
2.5 x 1.9 cm (Author: Michael Shaw) -
Gypsum
Lüderitz District, ǁKaras Region, Namibia
2.4 x 2.0 cm (Author: Michael Shaw) -
Gypsum
Taouima, Nador Province, Oriental Region, Morocco
5 cm x 5cm (Author: Enrique Llorens) -
Gypsum
Las Amoladoras Quarries, Verdegás, Alicante/Alacant, Comarca Campo de Alicante, Alicante / Alacant, Valencian Community / Comunitat Valenciana, Spain
86 mm x 23 mm x 13 mm (Author: Firmo Espinar) -
Gyrolite
Malad, Ward 38, Mumbai District, Maharashtra, India
7.6 x 8.3 cm.
An olive-green hemisphere of gyrolite on a thin matrix of smaller gyrolite spheres associated with blocky colorless fluorapophyllite crystals. (Author: crosstimber)
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Gyrolite + Apophyllite on Analcime
Inbhir a’ Gharraidh, Duirinish peninsula, Isle of Skye, Scotland, UK
Field of view approx. 6 cm across
Self-collected from Inbhir a’ Gharraidh, Duirinish, Isle of Skye in 1998. This locality is about 600m NW of MacLeods’ Maidens - which are two or three prominent sea-stacks (pinnacles). If there was a scale of difficulty to access this place, it would be seven (assuming Sgurr nam Boc is grade five !). (Author: Mike Wood)
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Gyrolite + Apophyllite on Thomsonite
Moonen Bay, Isle of Skye, Scotland, UK
The larger gyrolite ball is 12 mm across.
Nice little thumbnail specimen; self-collected from Moonen Bay, Isle of Skye, in 1996. (Author: Mike Wood)
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Gyrolite on Thomsonite
Moonen Bay, Isle of Skye, Scotland, UK
9 cm x 4 cm x 6 cm high
Some of the gyrolite shows alteration to a white powdery mineral. Self-collected from Moonen Bay in 1996. (Author: Mike Wood)
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Gyrolite on Thomsonite
Moonen Bay, Isle of Skye, Scotland, UK
Field of view approx. 30 mm x 22 mm.
Self-collected from Moonen Bay in 1996. (Author: Mike Wood)
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Gyrolite, Phillipsite
Big Bend, Kimberley, Grant County, Oregon, USA
FOV = 4.0 mm (Author: Doug) -
Gyrolite
Upper Ritter Quarry, Ritter, Grant County, Oregon, USA
FOV = 3.9 mm (Author: Doug) -
Gyrolite
Big Bend, Kimberley, Grant County, Oregon, USA
FOV = 3.4 mm (Author: Doug) -
Gyrolite
Devils Backbone, North Fork of John Day River, Ritter, Grant County, Oregon, USA
FOV = 3.3 mm (Author: Doug) -
Gyrolite
Devils Backbone, North Fork of John Day River, Ritter, Grant County, Oregon, USA
FOV = 3.2 mm (Author: Doug) -
Gyrolite
Pune District (Poonah District), Maharashtra, India
80 x 60 x 30 mm (Author: Rob Schnerr) -
Gyrolite
Malad Quarry, Malad, Mumbai (Bombay), Mumbai District, Maharashtra, India
4.4 x 3.1 x 1.9 cm (Author: Michael Shaw) -
Gyrolite
Malad Quarry, Malad, Mumbai (Bombay), Mumbai District, Maharashtra, India
4.4 x 3.1 x 1.9 cm (Author: Michael Shaw) -
Gyrolite
Lonavale (Lonavala), Pune District (Poonah District), Maharashtra, India
6.9 x 5.2 x 3.1 cm (Author: Michael Shaw) -
Haarsalz (Hattorf).JPG (Author: Andreas Gerstenberg)
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Hackmanite, Badakhshan. 125mm x 105mm (Author: Craig Mercer)
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Haineaultite, Mt. St. Hilaire, Canada 1 mm (Author: Rewitzer Christian)
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Haineaultite
Poudrette Quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
FOV = 2mm (Author: Doug) -
Haiweeite
Pasel adit, Radhausberg, Gastein Valley, St. Johann im Pongau, Salzburg, Austria
FOV 1,1 mm (Author: Gerhard Brandstetter) -
halit.jpg (Author: Tobi)
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halit0.JPG (Author: Tobi)
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halitDETAIL1.JPG (Author: Tobi)
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Halite
Lieth, Elmshorn, Schleswig-Holstein, Germany.
7,5 x 5 cm
Old sample from a nearly unknown locality. It was found in a salt drill before 1890. (Author: Andreas Gerstenberg)
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Halite
Neuhof-Ellers Potash Works, Neuhof, Fulda, Hesse, Germany
Largest crystals ~ 15 mm (Author: Tobi)
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Halite
Neuhof-Ellers Potash Works, Neuhof, Fulda, Hesse, Germany
Largest crystals ~ 15 mm (Author: Tobi)
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Halite
Neuhof-Ellers Potash Works, Neuhof, Fulda, Hesse, Germany
Largest crystals ~ 15 mm (Author: Tobi)
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Halite
Neuhof-Ellers Potash Works, Neuhof, Fulda, Hesse, Germany
Largest crystals ~ 15 mm (Author: Tobi)
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Halite
Neuhof-Ellers Potash Works, Neuhof, Fulda, Hesse, Germany
Largest crystals ~ 15 mm (Author: Tobi)
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Halite
Neuhof-Ellers Potash Works, Neuhof, Fulda, Hesse, Germany
Largest crystals ~ 15 mm (Author: Tobi)
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Halite
Neuhof-Ellers Potash Works, Neuhof, Fulda, Hesse, Germany
Field of view 55 mm (Author: Tobi)
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Halite
Neuhof-Ellers Potash Works, Neuhof, Fulda, Hesse, Germany
Specimen height 10,5 cm, largest crystals 1,5 cm (Author: Tobi)
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Halite
PCS Mine, Rocanville, Saskatchewan, Canada
3.5 x 8.5 cm.
Colorless cubes of halite crystallized in a stairstep aggregate. (Author: crosstimber)
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Halite
Searles Lake, Trona, California, USA
8.7 x 5.5 cm (Author: Don Lum)
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Halite
Searles Lake, Trona, California, USA
8.7 x 5.5 cm (Author: Don Lum)
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Halite
Wintershall Potash Works, Heringen, Werra Valley, Hesse, Germany,
10.0 x 15.6 cm
Colorless halite cubes to 3.1 cm on edge scattered over a pink halite matrix. Collected in 1966. (Author: crosstimber)
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Halite (Author: llamabox)
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Halite 02.jpg (Author: Jim Prentiss)
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Halite on Trona
Owens Lake, Olancha, Owens Valley, Inyo County, California, USA
7.2 x 6.6 x 2.9 cm (Author: Michael Shaw) -
Halite,Sylvite
10th Ore Zone, Intrepid East Mine, Carlsbad, Eddy County, New Mexico, USA
7.8 x 6.0 cm
Halite and Sylvite on Sylvite (Author: Don Lum)
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Halite
Neuhof-Ellers Potash Works, Neuhof, Fulda, Hesse, Germany
230 x 120 x 40 mm, largest crystals 15 mm. (Author: Tobi)
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Halite
Searles Lake, Trona, California, USA
9 x 6 x 5 cm (Author: Joseph D'Oliveira)
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Halite
Bad Ischl, Gmunden, Upper Austria/Oberösterreich, Austria
8 cm (Author: Gerhard Brandstetter) -
Halite
Kerr McGee Mine, Carlsbad Potash District, Eddy County, New Mexico, USA
2.0 x 2.0 cm (Author: crosstimber) -
Halite
PCS Mine, Rocanville, Saskatchewan Region, Saskatchewan Province, Canada
7 X 4 cm (Author: Richard Arseneau) -
Halite
Wieliczka Mine, Wieliczka, Małopolskie, Poland
70x60x40 mm (Author: Dany Mabillard) -
Halite
Owens Lake, Olancha, Owens Valley, Inyo County, California, USA
130x90x80 mm (Author: Dany Mabillard) -
Halite
Lubin Mine, Lubin, Lubin District, Legnica, Lower Silesia Voivodeship, Poland
80x60x40 mm (Author: Dany Mabillard) -
Halite
Salar de Uyuni, Daniel Campos Province, Potosà Department, Bolivia
80x70x50 mm (Author: Dany Mabillard) -
Halite
Owens Lake, Olancha, Owens Valley, Inyo County, California, USA
60 mm x 50 mm x 50 mm (Author: Dany Mabillard) -
Halite
Dead Sea, Madaba Governorate, Jordania
144mm x 105mm x 60 mm (Author: Firmo Espinar) -
Halite
Pepita Mine (Mine entrance Agoncillo), Agoncillo, Comarca Rioja Media, La Rioja, Spain
86mm x 52mm x 48mm (Author: Firmo Espinar) -
Halite
Pepita Mine (Mine entrance Agoncillo), Agoncillo, Comarca Rioja Media, La Rioja, Spain
86mm x 52mm x 48mm (Author: Firmo Espinar) -
Halite
Racalmuto Mine, Racalmuto, Agrigento (Girgenti) Province, Sicily, Italy
130 x 110 x 130 mm (Author: Rob Schnerr) -
Halite
Wieliczka Mine, Wieliczka, Małopolskie, Poland
78 x 52 mm (Author: Sante Celiberti) -
Halite
Chott el Djerid, Between Tozeur y Douz, Kebili Governorate, Great Eastern Sand Sea, Tunisia
35 x 18 cm (Author: Gerhard Brandstetter) -
Halite
Capaci, Metropolitan City of Palermo Province, Sicily, Italy
5.5x5 cm (Author: mineralenzo) -
Halite
Capaci, Metropolitan City of Palermo Province, Sicily, Italy
6x5 cm (Author: mineralenzo) -
Halite
Hallein Salt Mine, Dürrnberg, Hallein, Hallein District, Salzburg, Austria
3 x 3 cm (Author: Volkmar Stingl) -
Halite
Racalmuto Mine, Racalmuto, Agrigento (Girgenti) Province, Sicily, Italy
Cm 2x1,5 (Author: mineralenzo) -
Halite
Searles Lake, Mojave Desert, San Bernardino County, California, USA
8 x 5 cm (Author: Volkmar Stingl) -
Halite
Searles Lake, Mojave Desert, San Bernardino County, California, USA
8 x 5 cm (Author: Volkmar Stingl) -
Halite
Salt Flats on Cimarron River, Freedom, Woods County, Oklahoma, USA
12.4 x 4.3 x 3.0 cm (Author: Michael Shaw) -
Halite
Solno Mine, Inowrocław, Kujawsko-Pomorskie, Poland
9.8 x 7.2 x 5.3 cm (Author: Michael Shaw) -
Halite
Searles Lake, Mojave Desert, San Bernardino County, California, USA
5,5 x 4 cm (Author: Volkmar Stingl) -
Halotrichite Sulphur
Poudrette Quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
FOV = 1.2 (Author: Doug) -
halotrichite.JPG (Author: nurbo)
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halzedon-flyuorit-jzeo-120mm-1.jpg (Author: farmukanx)
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halzedon-flyuorit-jzeo-120mm-3.jpg (Author: farmukanx)
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halzedon-flyuorit-jzeo-120mm-4.jpg (Author: farmukanx)
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halzedon-flyuorit-jzeo-120mm-5.jpg (Author: farmukanx)
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hamam.jpg (Author: Tobi)
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Hambergite on Feldspar
Haramosh Mountains, Baltistan District, Gilgit-Baltistan (Northern Areas), Pakistan
fov 5 cm (Author: ploum) -
Hambergite
Mika pegmatite, Rangkul, Pamir Mountains, Viloyati Mukhtori Gorno-Badakhshan, Tajikistan
18 x 5 mm (Author: Sante Celiberti) -
hammer and calcite pocket (Author: thecrystalfinder)
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Handmade Pyrrhotite sphere, 65mm (Author: farmukanx)
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Handmade sphere, 85mm
Hematite with effect of Aventurin (Specularite) (Author: farmukanx)
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Handmade "Cat’s Eye" sphere, 90mm (Author: farmukanx)
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Handmade "Tiger’s eye" sphere, 125mm (Author: farmukanx)
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Handmade Aegerine sphere, 70mm (Author: farmukanx)
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Handmade Aegirine with Quartz sphere, 96mm (Author: farmukanx)
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Handmade Astrophyllite shere, 60mm (Author: farmukanx)
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Handmade Chalcedony with quartz sphere, 55mm (Author: farmukanx)
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Handmade Feldspars sphere, 80mm (Author: farmukanx)
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Handmade Fluorite sphere, diameter 150mm (Author: farmukanx)
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Handmade Fluorite sphere, diameter: 60 mm (Author: farmukanx)
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Handmade Garnet sphere, 135mm (Author: farmukanx)
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Handmade Garnet sphere, 86mm (Author: farmukanx)
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Handmade Garnet sphere, 86mm (Author: farmukanx)
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Handmade Jaspelit sphere, 75mm (Author: farmukanx)
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Handmade Jasper sphere 130mm (Author: farmukanx)
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Handmade Jasperlit sphere, 140mm (Author: farmukanx)
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Handmade Lead glass sphere 65mm (Author: farmukanx)
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Handmade Petrified wood sphere, 70mm (Author: farmukanx)
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Handmade Pink Quarz sphere with Asterism, 90mm (Author: farmukanx)
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Handmade Quartz hydrooxid and avanturine effect sphere, 85mm (Author: farmukanx)
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Handmade Quartz ssphere, 50mm (Author: farmukanx)
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Handmade sphere, 90mm
"Tiger’s eye" and "Cat’s eye" (Author: farmukanx)
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Handmade sphere, 110mm
Aegerine, Epidote, Pyrrhotite (Author: farmukanx)
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Handmade sphere, 70mm
Aventurin, Quartz (Author: farmukanx)
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Handmade sphere, 60mm
Hematited and Limonited Quartzite (Author: farmukanx)
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Handmade sphere, 90mm
Quartz chlorite and pyrite (Author: farmukanx)
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Handmade sphere, 90mm
Quartz with iron hydro-oxide (Author: farmukanx)
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Handmade sphere, 95mm
Quartz with iron hydro-oxide (Author: farmukanx)
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Handmade spheres (Author: farmukanx)
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Hanksite
Searles Lake, Mojave Desert, San Bernardino County, California, USA
3.8 x 5.5 cm (Author: crosstimber) -
Hanksite
Searles Lake, Mojave Desert, San Bernardino County, California, USA
215 mm x 177 mm x 198 mm (Author: Robert Seitz) -
Hard to see but my mattock head is resting on the quartz core (Author: Jason)
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Hard working Amish youth with the second load. (Author: vic rzonca)
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Harmotom (St. Andreasberg).JPG (Author: Andreas Gerstenberg)
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Harmotom crystals (5-9 mm) in a calcite vugg from Idar-Oberstein, Rhineland-Palatinate. Old material from Salomon-Calvi collection/Berlin. (Author: Andreas Gerstenberg)
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Harmotome
Korsnäs, Vaasa, Länsi-Suomen (läani), Finland.
0,9x0,6x0,5cm (main crystal) (Author: Carles Curto)
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Harmotome
Korsnäs, Vaasa, Länsi-Suomen (läani), Finland.
4,4x5,3x2,7cm. / main crystal: 0,9x0,6x0,5cm.
This (with pyrite coatings) is also an old piece is from an interesting locality (Author: Carles Curto)
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Harmotome
Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry; Carrière Mont Saint-Hilaire), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada
FOV=1.5mm (Author: Doug)
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Harmotome
St Andreasberg, St Andreasberg District, Harz, Lower Saxony, Germany
4,1 x 3,7 x 2,2 cm (Author: Carles Curto)
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Harmotome
St Andreasberg, St Andreasberg District, Harz, Lower Saxony, Germany
4,1x 3,7 x 2,2 cm (sample) (Author: Carles Curto)
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Harmotome, calcite
Road from Birkenfeld to Oberstein, Idar-Oberstein, Hunsrück, Rhineland-Palatinate, Germany.
9 x 8 cm (Author: Andreas Gerstenberg)
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Harmotome, cruciform twin.
St Andreasberg, Germany.
Twin is 9 mm long on 32 mm matrix. (Author: Ru Smith)
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Harmotome, cruciform twin.
St Andreasberg, Germany.
9 mm twin on 32 mm matrix (Author: Ru Smith)
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Harmotome, cruciform twin.
St Andreasberg, Germany.
3 mm twin. (Author: Ru Smith)
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Harmotome, cruciform twin.
Strontian Barite Mine, Strontian, Scotland, UK.
6 cm calcite matrix with harmotome crystals to 8 mm. (Author: Ru Smith)
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Harmotome, Phacolite
Fittà , Soave, Verona Province, Veneto, Italy
5.2 mm white Harmotome over Chabazite var. Phacolite balls (Author: Matteo_Chinellato)
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Harmotome
Contrada Re, Cerealto, Valdagno, Vicenza Province, Veneto, Italy
3.12 mm group of red-orange Harmotome crystals (Author: Matteo_Chinellato)
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Harmotome
Contrada Segani, Monte Segan, San Bartolo di Arzignano, Arzignano, Vicenza Province, Veneto, Italy
4,5 x 3 cm (Author: Volkmar Stingl) -
hastingsite (Author: Glenn Rhein)
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hastingsite (Author: Glenn Rhein)
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hastingsite (Author: Glenn Rhein)
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Hauerite
Destricella Mine, Raddusa, Catania Province, Sicily, Italy
4 x 4 x 4 cm (Author: Gail) -
HAULAGE SHAFT NIGHT AND DAY WITH CONVEYOR SYSTEM
The Mine, utilized a main haulage shaft as a critical artery for material transport. After the Copper ore was extracted from stopes and crushed underground, it was transferred to the surface via a series of underground conveyor systems. Haulage shafts remain a critical component in modern underground mining, especially as operations extend to greater depths. While declines and ramps are suitable for shallower deposits, vertical shafts become more economical and often necessary for efficient transportation of ore, personnel, equipment, and for vital functions like ventilation and utility corridors.
Contemporary mines leverage advanced technology in haulage shaft design and operation. Modern hoists, often powered by variable frequency controlled AC drives, facilitate rapid and high-capacity movement of skips (for ore) and cages (for personnel and materials). Automated skip loading systems and real-time monitoring of shaft conditions, often through LiDAR-based 3D scanning, significantly enhance safety and efficiency, enabling predictive maintenance and minimizing downtime.
At the Milpillas Mine, after the crushed ore was hoisted from the underground workings to the surface, an extensive and vital conveyor belt system took over. This system, the backbone of surface material handling, was meticulously designed for the continuous and efficient transport of ore to the processing plant.
The network at Milpillas comprised multiple, interconnected belts, each engineered to handle significant tonnages and often traversing substantial distances. These belts were robust, built with multiple plies for strength and wear resistance, and supported by a series of idlers. Transfer points were crucial, allowing ore to seamlessly move from one belt to the next, forming a complex yet highly optimized material flow path. This “truckless†approach significantly reduced operational costs, fuel consumption, and environmental impact compared to traditional truck haulage.
Key design considerations for the Milpillas conveyor system had focused on maximizing system availability, minimizing wear on components, and facilitating easy maintenance to ensure uninterrupted operation. Advanced control systems, including variable speed drives and material tracking, were employed to optimize belt loading, conserve energy, and provide real-time data on ore flow and quality, all contributing to the overall efficiency of the mine’s surface operations.
Original photos courtesy of Veronica Santoyo (Author: silvia)
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Hausmannite
N’Chwaning Mine, Kuruman, N. Cape Prov., South Africa
2.6 x 3.7 cm
An intergrown group of lustrous black hausmannite crystals to 2 cm on edge. (Author: crosstimber)
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Hausmannite
N'Chwaning II Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province, South Africa
FOV of 4.79mm (Author: ofarcis) -
Hausmannite on Andradite
N’Chwaning II Mine, N’Chwaning Mines, Kuruman, Kalahari manganese field, Northern Cape Province, South Africa
3.5 x 2 x 1.5 cm, largest crystal measures 2 cm across (Author: xdxucn)
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Hausmannite on Andradite
N’Chwaning II Mine, N’Chwaning Mines, Kuruman, Kalahari manganese field, Northern Cape Province, South Africa
3.5 x 2 x 1.5 cm, largest crystal measures 2 cm across (Author: xdxucn)
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Hausmannite on Andradite
N’Chwaning II Mine, N’Chwaning Mines, Kuruman, Kalahari manganese field, Northern Cape Province, South Africa
3.5 x 2 x 1.5 cm, largest crystal measures 2 cm across (Author: xdxucn)
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Hausmannite on Andradite
N’Chwaning II Mine, N’Chwaning Mines, Kuruman, Kalahari manganese field, Northern Cape Province, South Africa
3.5 x 2 x 1.5 cm, largest crystal measures 2 cm across (Author: xdxucn)
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Hausmannite on Andradite
N'Chwaning II Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province, South Africa
fov 20 mm (Author: ploum) -
Hausmannite, Andradite
N’Chwaning II Mine, Kuruman, Kalahari manganese fields, Northern Cape, South Africa
fov 30 mm (Author: ploum)
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Hausmannite, Andradite and Calcite
Kalahari manganese field (KMF), Northern Cape Province, South Africa
44mm x 37mm x 25mm (Author: Heimo Hellwig)Hausmannite, Andradite and Calcite
Kalahari manganese field (KMF), Northern Cape Province, South A -
Hausmannite, Andradite and Calcite
Kalahari manganese field (KMF), Northern Cape Province, South Africa
44mm x 37mm x 25mm (Author: Heimo Hellwig)Hausmannite, Andradite and Calcite
Kalahari manganese field (KMF), Northern Cape Province, South A -
Hausmannite, Andradite and Calcite
Kalahari manganese field (KMF), Northern Cape Province, South Africa
44mm x 37mm x 25mm (Author: Heimo Hellwig)Hausmannite, Andradite and Calcite
Kalahari manganese field (KMF), Northern Cape Province, South A -
Hausmannite, Andradite and Calcite
Kalahari manganese field (KMF), Northern Cape Province, South Africa
44mm x 37mm x 25mm (Author: Heimo Hellwig)Hausmannite, Andradite and Calcite
Kalahari manganese field (KMF), Northern Cape Province, South A -
Hausmannite, Calcite
Wessels Mine, Kuruman, Northern Cape Province, South Africa
6.5 x 4.5 cm (Author: Don Lum)
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Hausmannite
Bengal Mine, Stambaugh, Menominee Iron Range, Iron County, Michigan, USA
10.0 x 6.2 cm (Author: Michael Shaw) -
Hauyne
San Vito quarry, San Vito, Ercolano, Monte Somma, Somma-Vesuvius Complex, Naples Province, Campania, Italy
2.84 mm Hauyne blue dark-clear crystal. Collection & Photo M.Chinellato (Author: Matteo_Chinellato)
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Haüyne, augite, titanite
Laach lake volcanic complex, Eifel, RP, Germany
fov 3 mm (Author: ploum)
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Hauyne, Magnetite, Zircon
Case Collina (Toscopomici Quarry), Pitigliano, Grosseto Province, Tuscany, Italy
26 x 23 mm (Author: Sante Celiberti) -
Haüyne, Titanite, Aegirine
In den Dellen quarries, Niedermendig, Mendig, Mayen-Koblenz District, Eifel, Rhineland-Palatinate/Rheinland-Pfalz, Germany
3,0 x 2,3 cm (Author: Volkmar Stingl) -
Haüyne, Titanite, Aegirine
In den Dellen quarries, Niedermendig, Mendig, Mayen-Koblenz District, Eifel, Rhineland-Palatinate/Rheinland-Pfalz, Germany
3,0 x 2,3 cm (Author: Volkmar Stingl) -
Haüyne, titanite, apatite, magnetite, augite
Laach Lake complex, Eifel, Germany
fov 3.5 mm (Author: ploum)
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Haüyne
In den Dellen quarries, Niedermendig, Mendig, Mayen-Koblenz District, Eifel, Rhineland-Palatinate/Rheinland-Pfalz, Germany
fov 3.5 mm (Author: ploum) -
Haüyne
In den Dellen quarries, Niedermendig, Mendig, Mayen-Koblenz District, Eifel, Rhineland-Palatinate/Rheinland-Pfalz, Germany
fov 5.0 mm (Author: ploum) -
Haüyne
In den Dellen quarries, Niedermendig, Mendig, Mayen-Koblenz District, Eifel, Rhineland-Palatinate/Rheinland-Pfalz, Germany
fov 2.4 mm (Author: ploum) -
Haüyne
In den Dellen quarries, Niedermendig, Mendig, Mayen-Koblenz District, Eifel, Rhineland-Palatinate/Rheinland-Pfalz, Germany
fov 3.5 mm (Author: ploum) -
Haüyne
In den Dellen quarries, Niedermendig, Mendig, Mayen-Koblenz District, Eifel, Rhineland-Palatinate/Rheinland-Pfalz, Germany
fov 2.1 mm (Author: ploum) -
Hauyne
Wingertsberg, Mendig, Mayen-Koblenz District, Eifel, Rhineland-Palatinate/Rheinland-Pfalz, Germany
2,3 x 1,3 cm (Author: Volkmar Stingl) -
HCI Test (Author: Forrestblyth)
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Head frame. (Author: vic rzonca)
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Head view, crossed-eye stereo pair (Author: Gerhard Niklasch)
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Heart (Author: Glenn Rhein)
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Hechtsbergite from the type locality, the quarry Hechtsberg, Hausach, Black Forrest, Germany.
Field of view: 0.4 mm (Author: Rewitzer Christian)
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Hedenbergita and Arsenopyrite
Huanggang Mines, Hexigten Banner (KèshÃkèténg QÃ), Chifeng (Ulanhad), Inner Mongolia Autonomous Region, China
114 x 86 mm (Author: Manuel Mesa) -
Hedenbergite
Huanggangliang Iron Mine, KèshÃkèténg QÃ, Chifeng, Inner Mongolia A.R., China
89.0 x 65.0 x 49.0 mm
Elongate, semi-lustrous, green tabular crystals of Hedenbergite are arranged in a semi-radiating structure, and are accented with white on the apical termination. Several clear and etched crystals of Calcite to 8 mm are perched on the Hedenbergite. A nice specimen from this prolific locality with no damage. (Author: GneissWare)
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Hedenbergite and Babingtonite.jpg (Author: Pete Richards)
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Hedenbergite included Quartz Serifos Greece 55mm (Author: nurbo)
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Hedenbergite, Albite, Fluorapatite, Ilmenite
Lemolo Lake Quarry, Douglas County, Oregon, USA
FOV = 2.7 mm (Author: Doug)Hedenbergite, Albite, Fluorapatite, Ilmenite
Lemolo Lake Quarry, Douglas Coun -
Hedenbergite, Albite, Ilmenite, Fluorapatite
Lemolo Lake Quarry, Douglas County, Oregon, USA
FOV = 4.0 mm (Author: Doug)Hedenbergite, Albite, Ilmenite, Fluorapatite
Lemolo Lake Quarry, Douglas Coun -
Hedenbergite, Ilvaite
Campiglia Marittima, Campigliese, Livorno Province, Toscana, Italy
13 x 8,5 cm (Author: Sante Celiberti) -
Hedenbergite.
South Mountain District, Owyhee Co, Idaho, USA.
70 x 40 mm (Author: nurbo)
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Hedenbergite.
South Mountain District, Owyhee Co, Idaho, USA.
FOV 30 x20 mm approx (Author: nurbo)
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Hedenbergite.
South Mountain District, Owyhee Co, Idaho, USA.
70 x 40 mm (Author: nurbo)
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Hedenbergite
Huanggang Mines, Hexigten Banner (KèshÃkèténg QÃ), Chifeng (Ulanhad), Inner Mongolia Autonomous Region, China
93 x 83 mm (Author: Manuel Mesa) -
Hedenbergite
Lemolo Lake Quarry, Douglas County, Oregon, USA
FOV = 2.9 mm (Author: Doug) -
Hedenbergite
Lemolo Lake Quarry, Douglas County, Oregon, USA
FOV = 3.1 mm (Author: Doug) -
Hedyphane, Ojuela Mine, Mexico
2 mm
Photo: Christian Rewitzer (Author: Jordi Fabre)
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Hedyphane
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
fov 6 mm (Author: Rewitzer Christian) -
Heidornite, a rare borate from the type locality, an oil drilling near Frenswegen, Nordhorn, Lower Saxony. Shown is a 4 mm crystalline aggregate coming up from 1968 m depth. Some of the rarest stuff you can get from Germany. (Author: Andreas Gerstenberg)
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Heidornite
Frenswegen 3 deep bore, 1968 meters depth, Frenswegen, Nordhorn, Bentheim District, Lower Saxony/Niedersachsen, Germany
18 x 18 mm (Author: SunYi) -
Helvine on Magnetite
Huanggang Mines, Hexigten Banner (KèshÃkèténg QÃ), Chifeng (Ulanhad), Inner Mongolia Autonomous Region, China
122 X 115 mm (Author: Manuel Mesa) -
Helvine
Huanggang Mines, Hexigten Banner (KèshÃkèténg QÃ), Chifeng (Ulanhad), Inner Mongolia Autonomous Region, China
12 mm (Author: Manuel Mesa) -
Helvine
Unverhofft Glück an der Achte Mine, Antonsthal, Breitenbrunn/Erzgebirge, Erzgebirgskreis, Saxony/Sachsen, Germany
4 x 3,5 cm (Author: Volkmar Stingl) -
Helvite
Navegadora Mine, Penha do Norte, Conselheiro Pena, Minas Gerais, Brazil
4.5 x 7.0 cm.
Opaque yellow brown tetrahedral helvite crystals on a matrix of white albite. (Author: crosstimber)
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Helvite "monster": 12 x 10 mm crystal on quartz matrix from St. Richard mine, Rittersgrün, Saxony. (Author: Andreas Gerstenberg)
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Helvite on Quartz
Huanggangliang Fe mine, KèshÃkèténg QÃ, Chifeng Prefecture, Inner Mongolia A.R., China
99 x 90 x 65 mm (Author: GneissWare)
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Helvite on Quartz
Huanggangliang Fe mine, KèshÃkèténg QÃ, Chifeng Prefecture, Inner Mongolia A.R., China
99 x 90 x 65 mm (Author: GneissWare)
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Helvite on Quartz
Huanggangliang Fe mine, KèshÃkèténg QÃ, Chifeng Prefecture, Inner Mongolia A.R., China
99 x 90 x 65 mm (Author: GneissWare)
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Helvite, andradite
Huanggang Mine, Hexigten Banner, Ulanhad League, Chifeng, Inner Mongolia Autonomous Region, China
23 mm x 20 mm (Author: Carles Millan)
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Helvite, andradite
Huanggang Mine, Hexigten Banner, Ulanhad League, Chifeng, Inner Mongolia Autonomous Region, China
23 mm x 20 mm (Author: Carles Millan)
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Helvite, andradite
Huanggang Mine, Hexigten Banner, Ulanhad League, Chifeng, Inner Mongolia Autonomous Region, China
23 mm x 20 mm (Author: Carles Millan)
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Helvite, andradite
Huanggang Mine, Hexigten Banner, Ulanhad League, Chifeng, Inner Mongolia Autonomous Region, China
23 mm x 20 mm (Author: Carles Millan)
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Helvite, genthelvite, quartz, calcite
Huanggang Mine, KèshÃkèténg QÃ, Chifeng, Inner Mongolia A.R., China
75 mm × 52 mm × 37 mm. Main crystal size: 15 mm × 13 mm
Close-up (Author: Carles Millan)
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Helvite, genthelvite, quartz, calcite
Huanggang Mine, KèshÃkèténg QÃ, Chifeng, Inner Mongolia A.R., China
75 mm × 52 mm × 37 mm. Main crystal size: 15 mm × 13 mm (Author: Carles Millan)
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Helvite-Genthelvite series
Huanggang Mine #1, Chifeng Pref., Inner Mongolia AR, China
3.4 x 4.5 cm
Root beer-colored crystals of helvite-genthelvite series attached to a sceptered quartz crystal dotted with small spheres of dark green clinochlore. (Author: crosstimber)
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Hematite
6mm-8mm
Mackenheim, Odenwald, Hesse, Germany
Hematite crystals (6-8 mm) forming a fantastic micro (Author: Andreas Gerstenberg)
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Hematite
Beckermet Mine, Egremont, Cumbria, England, UK
9 x 7 x 5 cm (Author: nurbo)
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Hematite
Brumado (Bom Jesus dos Meiras), Bahia, Northeast Region, Brazil
118 mm x 75 mm (Author: Carles Millan)
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Hematite
Brumado (Bom Jesus dos Meiras), Bahia, Northeast Region, Brazil
118 mm x 75 mm (Author: Carles Millan)
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Hematite
Brumado, Bahia, Brazil
14 x 11.5 cm (Author: Don Lum)
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Hematite
Brumado, Bahia, Brazil
14 x 11.5 cm (Author: Don Lum)
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Hematite
Cavradi Gorge, Curnera Valley, Grischun, Switzerland
3.0 x 4.0 cm.
Lustrous bladed hematite crystals to 1.6 cm. with small quartz crystals and rutile. Collected 6-04-97 by Swiss strahler Theodosi Venzin. (Author: crosstimber)
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Hematite
Cavradi Gorge, Curnera Valley, Tujetsch, Grischun, Switzerland
3.0 x 4.2 cm
A small group of lustrous, bladed, metallic black hematite crystals associated with small transparent quartz crystals and epitactic rutile crystals. Collected 6-04-97 by Swiss strahler Theodosi Venzin. (Author: crosstimber)
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Hematite
Dehaq (Dehagh), Mehrdasht District, Najafabad County, Esfahan Province (Isfahan Province; Aspadana Province), Iran
Size of specimen:44*48*27 mm
In my birthplace city (Dehagh) crystals are infrequent ,but I find some, namely this specimen of hematite. (Author: h.abbasi)
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Hematite
Egremont, Cumbria, England
4.1 x 7.2 cm.
A reniform aggregate of reddish-brown "kidney ore." (Author: crosstimber)
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Hematite
Florence Mine, Egremont, England
9 x 7.5 cm (Author: Don Lum)
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Hematite
Florence Mine, Egremont, England
9 x 7.5 cm (Author: Don Lum)
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Hematite
Hachupa, Shigar Valley, Skardu District, Baltistan, Gilgit-Baltistan, Pakistan
2.3 x 2.9 cm.
Hematite rose partially coated with chlorite. (Author: crosstimber)
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Hematite
Jinlong Hill, Longchuan Co., Heyaun Pref., Guangdong Prov., China
7.7 x 9.7 cm.
Colorless to reddish-tinged quartz crystals to 3.5 cm associated with bladed black rosettes of hematite. (Author: crosstimber)
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Hematite
Monte Somma, Somma-Vesuvius Complex, Naples Province, Campania, Italy
9.98 mm group of Hematite crystals (Author: Matteo_Chinellato)
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Hematite
Mt Calvario, Biancavilla, Etna Volcanic Complex, Catania Province, Sicily, Italy
0.55 mm deformed Hematite crystal (Author: Matteo_Chinellato)
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Hematite
N’Chwaning II Mine, Kuruman, N. Cape Prov., South Africa
1.8 x 1.9 cm (Author: crosstimber)
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Hematite
N’Chwaning II Mine, Kuruman, N. Cape Province, South Africa
3.9 x 4.0 cm (Author: crosstimber)
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Hematite
N’Chwaning II Mine, Kuruman, N. Cape Province, South Africa
3.9 x 4.0 cm
Lustrous metallic black hematite crystals with a small colorless calcite rhomb. (Author: crosstimber)
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Hematite
Nador, Oriental Region, Morocco
1.5 x 2.8 cm.
A spear-shaped crystal of hematite with lustrous faces. (Author: crosstimber)
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Hematite
Netzberg, Ilfeld, Harz, Thuringia, Germany
6 x 4 cm (Author: Andreas Gerstenberg)
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Hematite
Ocna de Fier, Banat Mts., Caras-Severin Co., Romania
4.3 x 6.0 cm.
Finely bladed lustrous black hematite rosettes associated with colorless quartz crystals. Collected in the 1970s. (Author: crosstimber)
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Hematite
Ouro Preto, Minas Gerais, Brazil
5.0 x 7.5 cm
Lustrous black hexagonal crystals to 3 cm on edge arranged in a classic
“eisenrose†shape. (Author: crosstimber)
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Hematite
Payún volcano, Altiplano de Payún Matru, Malargüe Department, Mendoza, Argentina
2.6 x 5.8 cm.
Elongated octahedral hematite pseudomorphing magnetite and showing skeletal herringbone ribs. Collected from a fumarole in 2001. (Author: crosstimber)
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Hematite
Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry; Carrière Mont Saint-Hilaire), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada
FOV=3mm (Author: Doug)
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Hematite
Rio Marina, Elba Island, Livorno Province, Tuscany, Italy
Hematite crystal of 19x19,2 mm from the new found of the 2007 (Author: Matteo_Chinellato)
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Hematite
Skardu, Baltistan, Pakistan
fov 70 mm (Author: ploum)
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Hematite "wingfoot"
Egremont, West Cumberland Iron Field, North and Western Region (Cumberland), Cumbria, England, UK
24.2 x 8.5 x 9.8 cm.
Photo by Bryan Swoboda (Author: Gail)
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Hematite (Iron Rose) Latores. Oviedo. Asturias. Spain. 5 cm. (Author: nimfiara)
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Hematite (var Kidney Ore)
Frizington Parks / New Parkside mine, Frizington, Cumbria
50 x 40 mm (Author: nurbo)
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Hematite (var Kidney Ore)
Frizington Parks / New Parkside mine, Frizington, Cumbria
75 x 65 mm (Author: nurbo)
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Hematite (var. specularite) and Quartz
New Parkside Mines, Frizington, West Cumberland Iron Field, former Cumberland, Cumbria, England / United Kingdom
5.5 x 3.0 cm (Author: captaincaveman) -
Hematite (variety iron rose)
Saurüssel, Mörchner area, Zemmgrund, Ziller Valley (Zillertal), North Tyrol, Tyrol/Tirol, Austria
6,5 x 4 cm (Author: Volkmar Stingl) -
Hematite (variety iron rose)
Saurüssel, Mörchner area, Zemmgrund, Ziller Valley (Zillertal), North Tyrol, Tyrol/Tirol, Austria
6,5 x 4 cm (Author: Volkmar Stingl) -
Hematite (variety specularite) on kidney ore, Quartz
Florence Mine, Egremont, West Cumberland Iron Field, former Cumberland, Cumbria, England / United Kingdom
52 mm x 33 mm x 18 mm (Author: Don Lum) -
Hematite after Calcite
Lindal Moor Iron Mines, UK
25mm across. (Author: nurbo)
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Hematite after Magnetite
Altiplano Payun Matru, Mendoza, Argentina
5 x 4 x 3 cm (Author: Joseph D'Oliveira)
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Hematite after Magnetite (Martite) 9.4 × 7.1 × 5.5 cm, Payún Matru Volcano, Reserva Provincial La Payunia, Malargüe Department, Mendoza Province, Argentina. (Author: Samuel)
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Hematite after Magnetite (Martite)
Payun Matru Volcano, Malargue, Mendoza, Argentina
9.5 x 3.9 x 3.7 cm (Author: Don Lum)
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