FMF Minerals Gallery

Natrolite + Laumontite Sgurr nam Fiadh, Isle of Skye, Scotland, UK 8 cm x 8 cm x 4 cm Natrolite or mesolite crystals to 12 mm on white crystals that used to be laumontite, but have most likely dehydrated as the specimen has been stored dry. I have had similar material tested from this locality and it proved to be natrolite - courtesy of Alan Dyer - but not this same material. This locality is 5km south of Talisker Bay and - you guessed it - very difficult to access ! Self-collected 2006. Self-collected 2004. (Author: Mike Wood)

Natrolite + Laumontite Sgurr nam F

Natrolite and datolite Upper New Street quarry, Paterson, Passaic County, New Jersey, USA 8.8 x 7.5 cm Natrolite sprays atop datolite (Author: Frank Imbriacco)

Natrolite and datolite Upper New S

Natrolite and pectolite Millington Quarry, Bernards Township, Somerset County, New Jersey, USA 5 x 4.2 cm Natrolite crystals to 2.5 cm on pectolite (Author: Frank Imbriacco)

Natrolite and pectolite Millington

Natrolite and prehnite Millington Quarry, Bernards Township, Somerset Sounty, New Jersey, USA 8.8 x 5 cm Translucent natrolite crystals to 2.8 cm on prehnite (Author: Frank Imbriacco)

Natrolite and prehnite Millington

Natrolite on Gmelinite, Little Deer Park Quarry,Glenarm, Co Antrim, Northern Ireland, FOV approx 10 x 7 mm (Author: nurbo)

Natrolite on Gmelinite, Little Dee

Natrolite on Gmelinite, Little Deer Park Quarry,Glenarm, Co Antrim, Northern Ireland, 30 x 20 mm (Author: nurbo)

Natrolite on Gmelinite, Little Dee

Natrolite subgroup Vitiello Quarry (Cava Vitiello), Terzigno, Mt Vesuvius, Somma-Vesuvius Complex, Naples Province, Campania, Italy 10.39 mm area with several tufts of white Zeolite minerals (Author: Matteo_Chinellato)

Natrolite subgroup Vitiello Quarry

Natrolite with Prehnite & Laumontite Sowerbutt Quarry, Prospect Park, New Jersey, USA 6 cm across I collected this at the top of a quarry bench. When the overseer realized that numerous pockets of natrolites were there, I was ushered away from there (He collected and sold minerals on the side.). (Author: John Medici)

Natrolite with Prehnite & Laum

Natrolite, Analcime, Rhodochrosite
Poudrette Quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
40 mm x 30 mm 25 mm (Author: Don Lum)

Natrolite, Analcime, Rhodochrosite
Poudrette Quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, C

Natrolite, Analcime
Piz Sella, Plan de Gralba, Selva di Val Gardena, Trento Province, Trentino-Alto Adige (Trentino-Südtirol), Italy
5,5 x 4,5 cm (Author: Volkmar Stingl)

Natrolite, Analcime
Piz Sella,

Natrolite, Analcime
Piz Sella, Plan de Gralba, Selva di Val Gardena, Trento Province, Trentino-Alto Adige (Trentino-Südtirol), Italy
5,5 x 4,5 cm (Author: Volkmar Stingl)

Natrolite, Analcime
Piz Sella,

Natrolite, Analcime
Dobrná, Děčín (Tetschen), Ústí Region, Bohemia, Czech Republic
FoV ca. 2 x 1,5 cm (Author: Volkmar Stingl)

Natrolite, Analcime
Dobrná, D

Natrolite, Levyne
Beaver Valley Quarry, Shine, Jefferson County, Washington, USA
FOV = 3.7 mm (Author: Doug)

Natrolite, Levyne
Beaver Valle

Natrolite, Phillipsite-Ca, Tacharadite
Palagonia, Metropolitan City of Catania Province, Sicily, Italy
51 x 36 mm (Author: Sante Celiberti)

Natrolite, Phillipsite-Ca, Tacharadite
Palagonia, Metropolitan City of Catania Province, Sici

Natrolite, Phillipsite-Ca, Tacharadite
Palagonia, Metropolitan City of Catania Province, Sicily, Italy
51 x 36 mm (Author: Sante Celiberti)

Natrolite, Phillipsite-Ca, Tacharadite
Palagonia, Metropolitan City of Catania Province, Sici

Natrolite, Tacharanite, Phillipsite Palagonia, Northern Iblean plateau, Catania Province, Sicily, Italy 41.48 mm group with Natrolite balls and little white Tacharanite balls with Phillipsite (Author: Matteo_Chinellato)

Natrolite, Tacharanite, Phillipsit

Natrolite. Charcas, San Luis Potosí, México. 3cm x 3.3cm x 2.9cm. (Author: Luis Domínguez)

Natrolite. Charcas, San Luis Potos

Natrolite. Flinder, Victoria, Australia. 50 x 25 mm (Author: nurbo)

Natrolite. Flinder, Victoria, Aust

Natrolite. Flinder, Victoria, Australia. 50 x 25 mm (Author: nurbo)

Natrolite. Flinder, Victoria, Aust

Natrolite Altavilla Quarry, Altavilla Vicentina, Vicenza Province, Veneto, Italy Nicest 12.28 mm Natrolite ball (Author: Matteo_Chinellato)

Natrolite
Altavilla Quarry,

Natrolite Altavilla Quarry, Altavilla Vicentina, Vicenza Province, Veneto, Italy 66 mm zone covered of Natrolite balls (Author: Matteo_Chinellato)

Natrolite
Altavilla Quarry,

Natrolite Knife River, St. Louis County, Minnesota, USA 9 X 6 X 3.5 cm A 4.5 cm pocket filled with natrolite or a closely related species. (Author: John Nash)

Natrolite
Knife River, St.

Natrolite
Zeilberg Quarry, Maroldsweisach, Haßberge, Lower Franconia/Unterfranken, Bavaria/Bayern, Germany
47 mm (Author: Gerhard Brandstetter)

Natrolite
Zeilberg Quarry, Mar

Natrolite
Upper New Street Quarry, Paterson, Passaic County, New Jersey, USA
5.8 x 3.3 cm (Author: Frank Imbriacco)

Natrolite
Upper New Street Qua

Natrolite
Imilchil area, Anti-Atlas, Er Rachidia Province, Drâa-Tafilalet Region, Morocco
37 mm (Author: Gerhard Brandstetter)

Natrolite
Imilchil area, Anti-

Natrolite
Jalgaon District, Maharashtra, India
70mm x 50mm x 40mm (Author: Philippe Durand)

Natrolite
Jalgaon District, Ma

Natrolite
Weyerhaeuser Lincoln Creek Quarry, Doty Hills, Lewis County, Washington, USA
5.5 x 8.0 x 9.6 cm (Author: crosstimber)

Natrolite
Weyerhaeuser Lincoln

Natrolite
Wind Mountain, Cornudas Mountains, Otero County, New Mexico, USA
FOV = 3.5 mm (Author: Doug)

Natrolite
Wind Mountain, Cornu

Natrolite
Tick Canyon, Lang, Los Angeles County, California, USA
FOV = 4.0 mm (Author: Doug)

Natrolite
Tick Canyon, Lang, L

Natrolite
Pune District (Poonah District), Maharashtra, India
fov 40 mm (Author: ploum)

Natrolite
Pune District (Poona

Natrolite
Altavilla Quarry, Altavilla Vicentina, Vicenza Province, Veneto, Italy
24 x 22 mm (Author: Sante Celiberti)

Natrolite
Altavilla Quarry, Al

Natrolite
Nashik District (Nasik), Maharashtra, India
130 x 100 x 90 mm (Author: Rob Schnerr)

Natrolite
Nashik District (Nas

Natrolite
Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
70mm x 40mm x 45mm (Author: Philippe Durand)

Natrolite
Mont Saint-Hilaire,

Natrolite
Piz Sella, Plan de Gralba, Selva di Val Gardena, Trento Province, Trentino-Alto Adige (Trentino-Südtirol), Italy
127 x 90 mm (Author: Sante Celiberti)

Natrolite
Piz Sella, Plan de G

Natrolite
Piz Sella, Plan de Gralba, Selva di Val Gardena, Trento Province, Trentino-Alto Adige (Trentino-Südtirol), Italy
127 x 90 mm (Author: Sante Celiberti)

Natrolite
Piz Sella, Plan de G

Natrolite
Piz Sella, Plan de Gralba, Selva di Val Gardena, Trento Province, Trentino-Alto Adige (Trentino-Südtirol), Italy
5 x 3 cm (Author: Volkmar Stingl)

Natrolite
Piz Sella, Plan de G

Natrolite
Piz Sella, Plan de Gralba, Selva di Val Gardena, Trento Province, Trentino-Alto Adige (Trentino-Südtirol), Italy
8 x 7 cm (Author: Volkmar Stingl)

Natrolite
Piz Sella, Plan de G

Natrolite
Piz Sella, Plan de Gralba, Selva di Val Gardena, Trento Province, Trentino-Alto Adige (Trentino-Südtirol), Italy
8 x 7 cm (Author: Volkmar Stingl)

Natrolite
Piz Sella, Plan de G

Natrolite
Hohentwiel, Singen, Konstanz, Freiburg, Baden-Württemberg, Germany
5,5 x 2 cm (Author: Volkmar Stingl)

Natrolite
Hohentwiel, Singen,

Natrolite
Fuerteventura, Las Palmas Province, Canary Islands, Spain
7 x 3,5 cm (Author: Volkmar Stingl)

Natrolite
Fuerteventura, Las P

Natrolite
Fuerteventura, Las Palmas Province, Canary Islands, Spain
7 x 3,5 cm (Author: Volkmar Stingl)

Natrolite
Fuerteventura, Las P

Natrolite
Lefka, Nicosia District, Cyprus
7.0 x 5.0 x 3.7 cm (Author: Michael Shaw)

Natrolite
Lefka, Nicosia Distr

Natrolite
Mariánská Skála, Ústí nad Labem Region, Czech Republic
5 x 4 cm (Author: Volkmar Stingl)

Natrolite
Mariánská Skála,

Natrolite
Mariánská Skála, Ústí nad Labem Region, Czech Republic
5 x 4 cm (Author: Volkmar Stingl)

Natrolite
Mariánská Skála,

Natrolite
Chimney Rock Quarry, Bridgewater Township, Somerset County, New Jersey, USA
11 x 1,7 cm (Author: Sante Celiberti)

Natrolite
Chimney Rock Quarry,

Natrolite
Tighiste (Tirrhist), Imilchil area, Anti-Atlas, Er Rachidia Province, Drâa-Tafilalet Region, Morocco
4,5 cm x 3,5 cm (Author: Enrique Llorens)

Natrolite
Tighiste (Tirrhist),

Natrolite
Kirovskii Mine, level 158, Kukisvumchorr Mountain, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast, Northern Region, Russia
12 x 8.5 x 8.5 cm / main crystal: 5.6 cm (Author: MIM Museum)

Natrolite
Kirovskii Mine, leve

Natrolite
Tighiste (Tirrhist), Imilchil area, Anti-Atlas, Er Rachidia Province, Drâa-Tafilalet Region, Morocco
6.5 x 4.0 cm (Author: Michael Shaw)

Natrolite
Tighiste (Tirrhist),

Natrolite
Imilchil area, Anti-Atlas, Er Rachidia Province, Drâa-Tafilalet Region, Morocco
4 x 2,5 cm (Author: Volkmar Stingl)

Natrolite
Imilchil area, Anti-

Natrolite
Marrawah quarries, Cape Grim, Circular Head Council, Tasmania, Australia
6.1 x 4.6 x 2.1 cm (Author: Michael Shaw)

Natrolite
Marrawah quarries, C

Natrolite
Robertson Pit, Dayton, Mason County, Washington, USA
4.4 x 3.5 x 3.6 cm (Author: Michael Shaw)

Natrolite
Robertson Pit, Dayto

Natrolite
Wessels Mine, Hotazel, Kalahari manganese field (KMF), Northern Cape Province, South Africa
7.1 x 6.5 x 4.5 cm (Author: Michael Shaw)

Natrolite
Wessels Mine, Hotaze

Natrolith (Hohentwiel).JPG (Author: Andreas Gerstenberg)

Natrolith (Hohentwiel).JPG

Natropharmacoalumite María Josefa Mine, Rodalquilar, Níjar, Almería, Andalucía, Spain fov 2 mm (Author: Rewitzer Christian)

Natropharmacoalum
María Josefa Mine

Natropharmacoalumite María Josefa Mine, Rodalquilar, Níjar, Almería, Andalucía, Spain fov 2 mm (Author: Rewitzer Christian)

Natropharmacoalum
María Josefa Mine

Natropharmacoalumite
María Josefa Mine, Rodalquilar, Níjar, Comarca Metropolitana de Almería, Almería, Andalusia, Spain
fov 0.7 mm (Author: Rewitzer Christian)

Natropharmacoalumite
María Jo

Natropharmacoalumite
María Josefa Mine, Rodalquilar, Níjar, Comarca Metropolitana de Almería, Almería, Andalusia, Spain
fov 1 mm (Author: Rewitzer Christian)

Natropharmacoalumite
María Jo

Natropharmacoalumite
María Josefa Mine, Rodalquilar, Níjar, Comarca Metropolitana de Almería, Almería, Andalusia, Spain
fov 2.5 mm (Author: Rewitzer Christian)

Natropharmacoalumite
María Jo

Natropharmacosiderite
Gold Hill Mine, Gold Hill, Gold Hill District, Tooele County, Utah, USA
FOV = 4.00 mm (Author: Doug)

Natropharmacosiderite
Gold Hil

Natrophosphate Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry; Carrière Mont Saint-Hilaire), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada FOV=2mm Clear crystal (Author: Doug)

Natrophosphate Poudrette quarry (D

Natropyrochlore
Água de Pau Volcano, Água de Pau, Lagoa, San Miguel Island, Autonomous Region of the Azores, Portugal
fov 2 mm (Author: ploum)

Natropyrochlore
Água de Pau V

Natropyrochlore
Água de Pau Volcano, Água de Pau, Lagoa, San Miguel Island, Autonomous Region of the Azores, Portugal
fov 1.5 mm (Author: ploum)

Natropyrochlore
Água de Pau V

Natropyrochlore
Água de Pau Volcano, Água de Pau, Lagoa, San Miguel Island, Autonomous Region of the Azores, Portugal
fov 1.6 mm (Author: ploum)

Natropyrochlore
Água de Pau V

Natrosilite
Palitra pegmatite, Karnasurt Mine, Karnasurt Mountain, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast, Northern Region, Russia
13 x 9.5 x 12 cm / main crystal: 12.2 cm. (Author: MIM Museum)

Natrosilite
Palitra pegmatite,

Natrozippeite
Widowmaker Mine, Fry Mesa, White Canyon, White Canyon District, San Juan County, Utah, USA
FOV = 2.5 mm (Author: Doug)

Natrozippeite
Widowmaker Mine,

Natrozippeite
Parco Mine Group, Yellow Cat Mesa, Thompsons District (S.E. Thompsons), Grand County, Utah, USA
FOV = 1.9 mm (Author: Doug)

Natrozippeite
Parco Mine Group

Natural quartz sphere with crystal faces Fonda, Mohawk Township, Montgomery Co., New York, USA 2 cm. (Author: vic rzonca)

Natural quartz sphere with crystal

Natural rockery. (Author: Pierre Joubert)

Natural rockery.

Naturally etched, deep yellow color, heliodor crystal, from Padre Paraíso, Jequitinhonha valley, Minas Gerais, Southeast Region, Brazil Size 122 x 13 x 9 mm (Author: olelukoe)

Naturally etched,
Size 122 x 13 x

Naturally etched, gem quality and fully completed topaz crystal floater , from old Ukraine locality - Volodarsk-Volinskiy, not so bad example from this old locality (usually topaz crystals from this place not so good quality) Size 75 x 52 x 26 mm (Author: olelukoe)

Naturally etched,
Size 75 x 52 x 2

Naujakasite Ilímaussaq Intrusive Complex, Narsaq, Greenland FoV= 3 x 3 cm; Crystal: 1.5 x 1.2 cm NAUJAKASITE is by no means an aesthetic mineral but it is deeply exciting conceptually, let us see why: This string begins with two pieces of Steenstrupine, a mineral found only few places and in low quantities outside the Ilímaussaq Intrusion. It has very complex structure and around 20 different elements in the full formula, many of which are rare ones. The Naujakasite is similar in distribution, it is practically never found at all outside the Intrusion, even if inside it is locally very common, it reach to be the main component of a rock. But in opposition to Steentrupine, its formula is surprisingly simple: Na6(Fe,Mn)Al4Si8O26 Now, in case of “strange combination of weird elements” we somehow “intuitively” accept that the formation event has been a rare one with only one or very few known occurrences on Earth. Nevertheless seeing such a simple formula with few and common elements, the uniqueness of the Ilímaussaq formation is somehow even more striking. Strongly simplified, apart from the presence of many rare elements we are talking about a magma with very low concentrations of silicium (quarz is never found in most of the area in the central parts of the Intrusion!) and very high concentrations of sodium (Na) – an element present in high amounts in many Ilímaussaq minerals. (no wonder Sodalite has its type locality here…) (Author: kakov)

Naujakasite Ilímaussaq Intrusive C

Naujakasite Ilímaussaq Intrusive Complex, Narsaq, Greenland FoV: 2,5 x 2 cm A strange mineral that formed instead of nepheline in certain parts of the hyper-agpaitic magma (=low silica, high sodium) of the Ilímaussaq Intrusion. In spite of not containing any rare elements, it is practically not found anywhere else on Earth. More info above my other Naujakasite photo that shows a single crystal. On this piece the colour is more fresh, greenish. (Author: kakov)

Naujakasite Ilímaussaq Intrusive C

Ampliación a Victoria Mine, De Alcarama Range, Navajún, Comarca Cervera, La Rioja, Spain
(Author: supertxango)

Navajun town and surroundings

Nealite from Lavrion, Attica, Greece. Field of view: 1.2 mm (Author: Rewitzer Christian)

Nealite from Lavr
Field of view: 1.

Nealite, Lavrion, Greece 1 mm (Author: Rewitzer Christian)

Nealite, Lavrion, Greece 1 mm

Nealite
Mazarrón, Comarca Alto Guadalentín, Region of Murcia (Murcia), Spain
FOV 4.8 mm. (Author: Rewitzer Christian)

Nealite
Mazarrón, Comarca Alt

Nealite
Mazarrón, Comarca Alto Guadalentín, Region of Murcia (Murcia), Spain
FOV 3.8 mm. (Author: Rewitzer Christian)

Nealite
Mazarrón, Comarca Alt

Nealite
Mazarrón, Comarca Alto Guadalentín, Region of Murcia (Murcia), Spain
FOV 6 mm. (Author: Rewitzer Christian)

Nealite
Mazarrón, Comarca Alt

Nealite
Mazarrón, Comarca Alto Guadalentín, Region of Murcia (Murcia), Spain
FOV 1.2 mm. (Author: Rewitzer Christian)

Nealite
Mazarrón, Comarca Alt

Nearing the bottom where the vein starts to peter out..still finding druz here but no more large crystals. (Author: Jason)

Nearing the bottom where the vein

Nearly 5 cm long wires of so-called "Schlotsilber" (chimney silver) from Schlema mining district, Erzgebirge, Saxony. Not all dubious silver samples without matrix are manmade in a narrower sense. Some of them have been found when the chimneys of the smelters (f.e. at Freiberg and Schlema-Schneeberg district, Erzgebirge, Saxony) got pulled down. The silver sublimated on the inside of the chimneys. It is told that big chimney fragments fully overgrown by large silver wires have been found... But there´s nothing about ever been published and actually I never saw such "matrix chimney silver". Moreover you don´t see such loose wires that often; characteristic is their luster - the shown sample is, I think, 50 years old and there is no black tarnish on. (Author: Andreas Gerstenberg)

Nearly 5 cm long wires of so-calle

Nearly home. Some 12 km from our home. (Author: Pierre Joubert)

Nearly home. Some 12 km from our h

Neighborite and Rutile Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry; Carrière Mont Saint-Hilaire), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada FOV=4mm Rutile is dark crystal to right of neighborite (Author: Doug)

Neighborite and Rutile Poudrette q

Neil Prenn intent on digging quartz in a pocket. (Author: Tony L. Potucek)

Neil Prenn intent on digging quart

Nelson Streetcar (Author: Jimoore)

Nelson Streetcar

Nenadkevichite Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry; Carrière Mont Saint-Hilaire), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada FOV=4mm (Author: Doug)

Nenadkevichite Poudrette quarry (D

Nenadkevichite
Poudrette Quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
FOV = 2mm (Author: Doug)

Nenadkevichite
Poudrette Quarr

Nenadkevichite
Poudrette Quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
FOV = 2mm (Author: Doug)

Nenadkevichite
Poudrette Quarr

Nenadkevichite
Poudrette Quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
FOV = 4mm (Author: Doug)

Nenadkevichite
Poudrette Quarr

Nenthead mine workings. They do tours around the place. (Author: nurbo)

Nenthead mine workings. They do to

Neotocite
Poudrette Quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
FOV = 4mm (Author: Doug)

Neotocite
Poudrette Quarry, Mo

Nephelina and Phlogopite
Auraghuq, Jurm, Koksha Valley, Khash & Kuran Wa Munjan Districts, Badakhshan Province, Afghanistan
20 mm x 20 mm (Author: Manuel Mesa)

Nephelina and Phlogopite
Aurag

Nepheline Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry; Carrière Mont Saint-Hilaire), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada FOV=4mm Crude crystals on massive nepheline (Author: Doug)

Nepheline Poudrette quarry (Demix

Nepheline Ringseitert, Kirchweiler, Daun, Eifel, Rhineland-Palatinate, Germany 60X A complex pink hexagonal prism of nepheline. (Author: prcantos)

Nepheline Ringseitert, Kirchweiler

Nepheline (?), Aegirine Ilímaussaq Intrusive Complex, Narsaq, Greenland FoV: 5 x 4 cm (side view of the piece on the previous photo) Formation of Nepheline shows the lack of silicium in the magma. It can be difficult to distinguish from feldspar, as it has similar colur and hardness, but it lack clear cleavage and has a somewhat greasy lustre - I am almost sure most of the gray substance we see here is nepheline. (in other areas of the same stone there is also a bit of feldspar, see previous pic) (Author: kakov)

Nepheline (?), Aegirine Ilímaussaq

Nepheline on Lazurite
Auraghuq, Jurm, Koksha Valley, Khash & Kuran Wa Munjan Districts, Badakhshan Province, Afghanistan
20 mm x 20 mm (Author: Manuel Mesa)

Nepheline on Lazurite
Auraghuq

Nepheline on Lazurite
Auraghuq, Jurm, Koksha Valley, Khash & Kuran Wa Munjan Districts, Badakhshan Province, Afghanistan
20 mm x 20 mm (Author: Manuel Mesa)

Nepheline on Lazurite
Auraghuq

Nepheline, leucite, pyroxene group Ringseitert, Kirchweiler, Daun, Eifel, Rhineland-Palatinate, Germany 50X A pink hexagonal prism of nepheline (center), a colourless leucite trapezohedron (top left) and dark olive translucent tabular pyroxene crystals (possibly enstatite). The specimen contains also apatite needles (not visible here). (Author: prcantos)

Nepheline, leucite, pyroxene group

Nepheline
Löhley, Üdersdorf, Daun, Eifel, Rhineland-Palatinate/Rheinland-Pfalz, Germany
48 x 26 x 11 mm (Author: Rob Schnerr)

Nepheline
Löhley, Üdersdorf,

Neptunite Dallas Gem Mine, New Idria, Diablo Range, San Benito Co., California, USA fov 35 mm (Author: ploum)

Neptunite Dallas Gem Mine, New Idr

Neptunite Dallas Gem Mine, San Benito Co., California, USA fov 45 mm (Author: ploum)

Neptunite Dallas Gem Mine, San Ben

Neptunite San Benito Gem Mine, California, USA. 2cm across (Author: nurbo)

Neptunite San Benito Gem Mine, Cal

Neptunite (twinned) with Benitoite on Natrolite
California State Gem Mine (Benitoite Gem Mine), San Benito River headwaters area, Santa Rita Peak, New Idria District, San Benito County, California, USA
8.5 x 6.5 x 3 cm / main crystal: 2.4 cm (Author: MIM Museum)

Neptunite (twinned) with Benitoite on Natrolite
California State Gem Mine (Benitoite Gem Mine), San Benito River headwaters area, Santa Rita Peak, New Idria District, San Benito Count

Neptunite on crossite and natrolite matrix with tiny joaquinite crystals. Benitoite Gem Mine, San Benito Co., California. 8,5 x 6 cm. Main crystal measures 2 cm. (Author: Antonio Alcaide)

Neptunite on crossite and natrolit

Neptunite twin (Author: John S. White)

Neptunite twin

Neptunite with Benitoite - Dallas Gem Mine - San Benito County - California - large minature (7.0 x 2.0 x 1.5 cm) (Author: jaysminerals)

Neptunite with Benitoite - Dallas

Neptunite, Benitoite
California State Gem Mine (Benitoite Gem Mine), San Benito River headwaters area, Santa Rita Peak, New Idria District, San Benito County, California, USA
3.6 x 3.0 cm (Author: am mizunaka)

Neptunite, Benitoite
Californi

Neptunite, Joaquinite-(Ce) Benitoite Mine, New Idria District, Diablo Range, San Benito Co., California, USA (Author: Roger Warin)

Neptunite, Joaquinite-(Ce) Benitoi

NEPTUNITE, Pyrochlore, Tugtupite Ilímaussaq Intrusive Complex, Narsaq, Greenland FoV: 4 x 5 cm (for reference you have the curvature of my finger on the top) section of Neptunite crystal in right down corner: 3 x 3 mm I have taken this piece for the relatively well developed Neptunite crystals (NB! this is not a micro photo), the Pyrochlore is more visible in the previous piece, here there are only small spots of it to the right of the central Neptunite area. The Tugtupite is also of very bad quality. NEPTUNITE is a relatively common mineral in some rocks of the Ilímaussaq complex, among them the beryllium bearing hydrothermal veins. Hence if you have Tugtupite in your collection on a relatively decent sized matrix, it is highly probable you also will have Nepunite in it somewhere. We are not talking about showy crystals like the well known wonders from San Benito, California, the grains/crystals here seldom get over a few mm and they are usually surrounded by other minerals. Nevertheless the Ilímaussaq Neptunite has some really interesting features, of which I would highlight: 1) It always shows the deep red colour. 2) Association: in the Tugtupite bearing hydrothermal veins the Neptunite grains are almost always directly associated with the niobium mineral Pyrochlore, that forms yellow or light brown irregular spots or oblong areas with a greasy lustre. Inside or near this substance we have dark grains, clearly deep red with a 10x loupe and often of romoidal shape – this is the Neptunite! 3) Cultural aspects: Although the type locality is not Ilímaussaq rather the Narsarsuk pegmatite located in the Igaliko intrusive complex, the two locations are relatively close to each other (and type locality Neptunite is practically impossible to get!). Furthermore we can say that the name given to the mineral is somehow equally justified at this site: In the Narsarsuk pegmatite there are big amounts of Aegirine, named after the sea god Aegir in the Nordic mythology – this association inspired the usage of “Neptun”, the Roman sea god in the nomenclature of the associated mineral. And well, Aegirine is also a common mineral in the Ilímaussaq complex… (Author: kakov)

NEPTUNITE, Pyrochlore, Tugtupite I