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Minerals

6323 results

Mineral

Giftgrubeite

giftgrubeite

Formula
CaMn2Ca2(AsO4)2(AsO3OH)2·4H2O
Gilalite Field of view: 3 mm Locality: Christmas Mine (TL), Gila County, Arizona, USA Mineral

Gilalite

gilalite

Formula
Cu5Si6O17·7H2O
Gillardite, Gaspéite Locality: 132 North Mine, Widgiemooltha, Western Australia, Australia (Locality at mindat.org) Dark green crystal clusters of Gillardite on Gaspéite. Field of view 4 mm. Specimen and photo Leon Hupperichs. Mineral

Gillardite

gillardite

Formula
Cu3Ni(OH)6Cl2
:Locality: La Madrelena Mine, Tres Pozos, Baja California Norte, Mexico Size: 5.5 × 4.5 × 3.5 cm Largest Crystal: 1.10cm Description: Thin platy veins of lustrous and translucent, rich strawberry-colored gillespite are emplaced in beautifully color contrasting white mica-like plates of sanbornite. Gillespite is a rare barium, iron silicate and sanbornite is a barium silicate. Accompanied also by brown taramellite. This is a colorful piece of the species. Ex. Renaud Vochten (USA) collection. Collected: 1994 Mineral

Gillespite

gillespite

Formula
BaFe²⁺Si4O10
Outstanding deep red crystals of the extremely rare thallium mineral gillulyite from the type and only known locality known worldwide: Lulu Cut, South Mercur Pit, Tooele County, Utah, United States of America. This material was discovered in 1991, and has never been found in any other locality. Mineral

Gillulyite

gillulyite

Formula
Tl2As7.5Sb0.3S13
Gilmarite, Conichalcite Locality: El Guanaco Mine, Guanaco (Huanaco), Santa Catalina, Antofagasta Province, Antofagasta Region, Chile (Locality at mindat.org) Greenish blue Gilmarite together with some Conichalcite spheres and light blue acicular xls of an unknown mineral. Field of view 7 mm. Specimen and photo Leon Hupperichs. Mineral

Gilmarite

gilmarite

Formula
Cu²⁺3(AsO4)(OH)3
(a) Ginelfite, as dark grey acicular crystals with quartz and baryte. Photo Vincent Bourgoin. (b) Backscattered electron (BSE) image of the grain used for electron microprobe and reflectance measurements. White domains correspond to lopatkaite (Lpk). Mineral

Ginelfite

ginelfite

Formula
Ag2(Ag0.5Fe²⁺0.5)TlPb23.5(Sb,As)33.5S76
Mineral

Giniite

giniite

Formula
Fe²⁺Fe³⁺4(PO4)4(OH)2·2H2O
White crystals of the rare borate mineral ginorite from Death Valley (Death Valley, Inyo County, California, United States of America) on a dark contrasting matrix. Mineral

Ginorite

ginorite

Formula
Ca2B14O20(OH)6·5H2O
Giorgiosite - Germany, Saxony-Anhalt, Hettstedt - 1 mm. Photos from tomeikminerals.com can be used under a Creative Commons Licenese 4.0 CC-BY, as explained in: https://www.tomeikminerals.com/about-me. Mineral

Giorgiosite

giorgiosite

Formula
Mg5(CO3)4(OH)2·5H2O
Grey metallic crystals of the extremely rare Cu-Zn selenide from the type locality in Chameane (Chaméane Uranium Deposit, Chaméane, Sauxillanges, Puy-de-Dôme, Auvergne-Rhône-Alpes, France). Giraudite-(Zn) is re-named from "giraudite" according to the new tetrahedrite group nomenclature of Biagione et al., 2020. Ex Vandenbroucke Museum collection specimen, from Waregem, Belgium,. Mineral

Giraudite-(Zn)

giraudite-(Zn)

Formula
Cu6(Cu4Zn2)As4Se13
Mineral

Girdite

girdite
Mineral

Girvasite

girvasite

Formula
NaCa2Mg3(PO4)3(CO3)(H2O)6
Campo de Calatrava, Ciudad Real, España. (Colección Rafa Muñoz Alvarado) Encuadre 3 mm. Mineral

Gismondine-Ca

gismondine-Ca

Formula
Ca2(Si4Al4)O16·8H2O
Mineral

Gismondine-Sr

gismondine-Sr

Formula
Sr4(Si8Al8O32)·9H2O
Eudialyte, Gittinsite, Vlasovite Locality: Kipawa alkaline complex, Les Lacs-du-Témiscamingue, Témiscamingue RCM, Abitibi-Témiscamingue, Québec, Canada Description: A 4.1 by 3.1 cms mass of pink Eudialite with whitish Gittinsite on the surface of two included Vlasovite crystals on the upper left. JSS specimen and photo. Mineral

Gittinsite

gittinsite

Formula
CaZrSi2O7
Outstanding pale purple crystals of the very rare mineral giuseppettite from the type locality (Biachella Valley, Sacrofano, Rome, Latium, Italy) and only one of the three confirmed localities worldwide Mineral

Giuseppettite

giuseppettite

Formula
(Na,K,Ca)7-8(Al6Si6O24)(SO4,Cl)1-2
Mineral

Giuşcăite

giuşcăite

Formula
Ag2Tl4Pb4As20Sb2S40
Mineral

Gjerdingenite-Ca

gjerdingenite-Ca

Formula
K2Ca(Nb,Ti)4(Si4O12)2(O,OH)4·6H2O
Gjerdingenite-Fe Locality: Gjerdingselva (Gjerdingen), Nordmarka, Lunner, Oppland, Norway Yellowish crystals of Gjerdingenite-Fe (analysed) Field of view 3 mm. Specimen and photo Leon Hupperichs. Mineral

Gjerdingenite-Fe

gjerdingenite-Fe

Formula
K2Fe(Nb,Ti)4(Si4O12)2(O,OH)4·6H2O
Mineral

Gjerdingenite-Mn

gjerdingenite-Mn

Formula
K2Mn(Nb,Ti)4(Si4O12)2(O,OH)4·6H2O
Mineral

Gjerdingenite-Na

gjerdingenite-Na

Formula
K2Na(Nb,Ti)4(Si4O12)2(OH,O)4·5H2O
Black metallic crystal aggregates of the rare sulphide mineral gladite from the type locality in Gladhammer (Gladhammar Mines, Västervik, Kalmar County, Sweden). Mineral

Gladite

gladite

Formula
CuPbBi5S9
Mineral

Gladiusite

gladiusite