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G Index of Mineral Species

This alphabetical listing of G minerals include synonyms of accepted mineral names, pronunciation of that name, name origins, and locality information. Visit our expanded selection of mineral pictures.

Gabrielite !     Tl2AgCu2As3S7 NAME ORIGIN: Nameed for Walter Gabriel (b. 1943), of Basel, Switzerland, a well-known mineral photographer and expert on Lengenbach minerals. Gabrielsonite     PbFe++(AsO4)(OH) NAME ORIGIN: Named for Olof Erik Gabrielson (1912-), mineralogist, Swedish Natural History Museum, Stockholm, Sweden. Gadolinite-(Ce)     (Ce,La,Nd,Y)2Fe++Be2Si2O10 NAME ORIGIN: Named for its cerium content and the relationship to gadolinite-(Y). Gadolinite-(Y)     Y2Fe++Be2Si2O10 NAME ORIGIN: Named after the gadolium and ytterbium content. Gagarinite-(Y)     NaCaY(F,Cl)6 NAME ORIGIN: Named after Yuri Alekseevich Gagarin (1934-1968), the first cosmonaut and the first person to travel in space. Gageite     (Mn,Mg,Zn)42Si16O54(OH)40 NAME ORIGIN: Named for Robert B. Gage, of Trenton, New Jersey, USA, who analyzed the first specimens. Gageite-2M     (Mn,Mg,Zn)42Si16O54(OH)40 NAME ORIGIN: Named for Robert B. Gage, of Trenton, New Jersey, USA, who analyzed the first specimens. Gahnite     ZnAl2O4 NAME ORIGIN: Named after the Swedish chemist and mineralogist, J. G. Gahn (1745-1818). Gaidonnayite     Na2ZrSi3O9•2(H2O) NAME ORIGIN: Named for Gabrielle Hamburger Donnay (1920-1987), crystallographer and mineralogist, McGill University. Gainesite     Na2Zr2Be(PO4)4•1-2(H2O) NAME ORIGIN: Named for Richard Venable Gaines (1917-1999), American mineralogist, economic geologist, and mineral collector of Earlysville, Virginia, USA, for his interest in beryllium minerals. Gaitite     Ca2Zn(AsO4)2•2(H2O) NAME ORIGIN: Named for Rober Irwin Gait (1938-), curator of mineralogy, Royal Ontario Museum, Toronto, Canada. Galaxite     (Mn,Mg)(Al,Fe+++)2O4 NAME ORIGIN: Named after its location. Galeite     Na15(SO4)5F4Cl NAME ORIGIN: Named for William Alexander Gale (1898-1985), Director of Research of the American Potash and Chemical Corporation.. Galena     PbS NAME ORIGIN: The Roman naturalist, Pliny, used the name galena to describe lead ore. Galenobismutite     PbBi2S4 NAME ORIGIN: Named after its chemical composition. Galgenbergite-(Ce) !     Ca(REE)2(CO3)4•(H2O) NAME ORIGIN: Named after the locality. LOCALITY: Galgenberg Tunnel, St. Leoben, Steiermark, Austria. Galileiite !     NaFe++4(PO4)3 NAME ORIGIN: For Galileo Galilei (1564-1642), Italian astronomer and physicist. Galkhaite     (Cs,Tl)(Hg,Cu,Zn)6(As,Sb)4S12 NAME ORIGIN: Named for the locality. LOCALITY: In the mercury deposits of Gal-Khaya, Yakutia, and Khaidarkan, Kirgizia, Russia. Gallite     CuGaS2 NAME ORIGIN: For the mineral's gallium content. Gallobeudantite !     PbGa3[(AsO4),(SO4)]2(OH)6 NAME ORIGIN: For the relationship to beudantite and the gallium content. Galmei *  (see Hemimorphite ) See Also: GOOGLE, Athena, MinDAT, MinMax Galmei *  (see Smithsonite ) See Also: GOOGLE, Athena, MinDAT, MinMax Gamagarite     Ba2(Fe+++,Mn+++)(VO4)2(OH) NAME ORIGIN: Named for the locality. LOCALITY: Along Gamagara Ridge, on Gloucester Farm, about 27 km north of Postmasburg, Cape Province, South Africa. gamma-Rathite *  (see Rathite ) See Also: GOOGLE, Athena, MinDAT, MinMax Gananite     BiF3 NAME ORIGIN: Named for the locality. LOCALITY: Ganan area, Laikeng district, southern Jiangxi Province, China. Ganomalite     Pb9Ca5Mn++Si9O33 NAME ORIGIN: Named from the Greek for luster, in allusion to its appearance. Ganophyllite     (K,Na)2(Mn,Al,Mg)8(Si,Al)12O29(OH)7•8-9(H2O) NAME ORIGIN: From the Greek for "luster" and "leaf" for the high luster on cleavage planes. Ganterite !     [Ba0.5(Na,K)0.5]Al2(Si2.5Al1.5O10)(OH)2 NAME ORIGIN: Named for Gantertal Valley region in which the mineral was found. Gaotaiite     Ir3Te8 NAME ORIGIN: Named after its locality. LOCALITY: Near the village of Gaotai, about 200 km NNE of Beijing, People's Republic of China. Garavellite     FeSbBiS4 NAME ORIGIN: For Professor C.L. Garavelli, Italian mineralogist. Garnierite *  (see Falcondoite ) See Also: GOOGLE, Athena, MinDAT, MinMax Garrelsite-V     Ba3NaSi2B7O16(OH)4 NAME ORIGIN: Named for Robert M. Garrels (1916-1988), U.S. Geochemist. Garrelsite-VIII     Ba3NaSi2B7O16(OH)4 NAME ORIGIN: Named for Robert Minard Garrels (1916-1988), American geochemist and educator. Garronite     Na2Ca5Al12Si20O64•27(H2O) NAME ORIGIN: Named after its locality. LOCALITY: Slopes of Glenariff Valley, Garron Plateau, County Antrim, Northern Ireland. Gartrellite     Pb(Cu,Fe++)2(AsO4,SO4)2(CO3,H2O)0.7 NAME ORIGIN: Named for Blair Gartrell (1950-1995), Australian collector who found the mineral. Garyansellite     (Mg,Fe+++)3(PO4)2(OH,O)•1,5(H2O) NAME ORIGIN: Named for H. Gary Ansell (1943- ), Associate Curator, Canadian National Mineral Collection, Geological Survey of Canada, Ottawa, Canada. Gasparite-(Ce)     CeAsO4 NAME ORIGIN: Named for Giovanni Gaspari, mineral collector of Crodo, Italy, who first found the mineral, and for its dominant cerium content. Gaspeite     (Ni,Mg,Fe++)CO3 NAME ORIGIN: Named after its locality. LOCALITY: It was first described from the Gaspe Peninsula in Quebec, but has been reported from elsewhere, including western Australia. Gatehouseite     Mn++5(PO4)2(OH)4 NAME ORIGIN: Named for Bryan Michael Kenneth Cummings Gatehouse (1932- ), crystal chemist, Monash University, Melbourne, Australia. Gatelite-(Ce) !     (Ca,Ce,La,Nd)4(Al,Mg,Fe)4[Si2O7][SiO4]3(O,F,OH)3 NAME ORIGIN: Named for Pierre Gatel, French mineral collector and founder of the Association Francaise de Micromineralogie. Gatumbaite     CaAl2(PO4)2(OH)2•(H2O) NAME ORIGIN: Named for the locality. LOCALITY: Buranga pegmatite, near Gatumba, Gisenyi Province, Rwanda. Gaudefroyite     Ca4Mn+++3-x(BO3)3(CO3)(O,OH)3 NAME ORIGIN: Named for Abbe Christophe Gaudefroy (1888-1971), French mineralogist who worked in Morocco. Gaultite     Na4Zn2Si7O18•5(H2O) NAME ORIGIN: Named after Robert Allan Gault (1943- ) of the Canadian Museum of Nature. Gay Lussite *  (see Gaylussite ) See Also: GOOGLE, Athena, MinDAT, MinMax Gaylussite     Na2Ca(CO3)2•5(H2O) NAME ORIGIN: Named after the French chemist and physicist, J. L. Gay-Lussac (1778-1850). Gearksutite     CaAl(OH,F)5•(H2O) NAME ORIGIN: Named from the Greek "Ge", for earth because it is usually earthy and arksutite, from the locality near Arksut fjord. LOCALITY: Greenland and Ural Mountains, Russia. Gebhardite     Pb8(As+++2O5)2OCl6 NAME ORIGIN: Named for Georg Gebhard (1945- ), German chemist, mineral collector, and authority on rare minerals, who supplied the specimen. Gedrite     [ ]Mg5Al2Si6Al2O22(OH)2 NAME ORIGIN: Named for the locality. LOCALITY: Heas Valley near Gedres, France. Geerite     Cu8S5 NAME ORIGIN: To honor the original collector, Adam Geer, of Utica, New York, USA. Geffroyite     (Ag,Cu,Fe)9(Se,S)8 NAME ORIGIN: To honor Jaques Geffroy, metallugist for the French Atomic Energy Commission. Gehlenite     Ca2Al(AlSi)O7 NAME ORIGIN: Named after the German chemist, A. F. Gehlen (1775-1815). Geigerite     Mn5(AsO3OH)2(AsO4)2•10(H2O) NAME ORIGIN: Named for Thomas Geiger (1886-1976), Wiesendangen, Switzerland, who studied Falotta manganese ores. Geikielite     MgTiO3 NAME ORIGIN: Named for Sir Archibald Geikie (1835-1924), Scottish geologist and Director-General of the Geological Survey of Great Brition. Gelnicaite *  (see Marrucciite ) See Also: GOOGLE, Athena, MinDAT, MinMax Gelnicite *  (see Marrucciite ) See Also: GOOGLE, Athena, MinDAT, MinMax Geminite     Cu++2As+++++2O7•3(H2O) NAME ORIGIN: Named from the Latin gemini, twins, in allusion to the usual character of the crystals. Gengenbachite     KFe3(H2PO4)2(HPO4)4•6H2O or KFe3H8(PO4)6•6H2O NAME ORIGIN: Named for the locality. LOCALITY: Grube Silberbrünnle, Haigerach Valley near Gengenbach, Central Black Forest, Germany Genkinite     (Pt,Pd)4Sb3 NAME ORIGIN: For Dr. A.D. Genkin, Soviet mineralogist. Genthelvite     Zn4Be3(SiO4)3S NAME ORIGIN: Named for Frederick August Ludwig Karl Genth (1820-1893), German-American mineralogist. Genthite *  (see Falcondoite ) See Also: GOOGLE, Athena, MinDAT, MinMax Genthite *  (see Nepouite ) See Also: GOOGLE, Athena, MinDAT, MinMax Geocronite     Pb14(Sb,As)6S23 NAME ORIGIN: From the Greek for "Earth" and "Saturn", the alchemistic name for lead. Georgbarsanovite !     Na12(Mn,Sr,REE)3Ca6Fe++3Zr3NbSi25O76Cl2•H2O NAME ORIGIN: Named for Georgiy Pavlovich Barsanov (1907-1991), prominent Russian mineralogist. Georgbokiite !     Cu5O2(SeO3)2Cl2 NAME ORIGIN: For Prof. Dr. Georgiy Borisovich Bokii (1909-) for his contributions to crystal chemistry and mineralogy. George-ericksenite !     Na6CaMg(IO3)6(CrO4)2•12(H2O) NAME ORIGIN: Named after George E. Ericksen (1920-1996) of Reston, Virginia who conducted studies of nitrate deposits for the U.S.G.S. Georgechaoite     KNaZrSi3O9•2(H2O) NAME ORIGIN: The name honors Prof. George Y. Chao of Carlton University, Ottawa, Canada, for his work with Zr silicates. Georgeericksenite - Renamed to George-ericksenite by Mineralogical Record, v39 (2008), p131  (see George-ericksenite ) See Also: GOOGLE, Athena, MinDAT, MinMax Georgeite     Cu++5(CO3)3(OH)4•6(H2O) NAME ORIGIN: Named for George Herbert Payne (1912-1989), past chief of the mineral division, Western Australian Government Chemical Laboratories. Georgiadesite     Pb4(AsO3)Cl4(OH) NAME ORIGIN: Named for Georgiades, a director of the mines at Laurium, Greece. Gerasimovskite     (Mn,Ca)(Nb,Ti)5O12•9(H2O) (?) NAME ORIGIN: Named for Vasily I. Gerasimovskii (1911-1979), Russian mineralogist and geochemist who discovered many new minerals at Lovozero. Gerdtremmelite     ZnAl2(AsO4)(OH)5 NAME ORIGIN: Named for Gerd Tremmel, who first recognized the mineral. Gerenite-(Y) !     (Ca,Na)2(Y,REE)3Si6O18•2(H2O) NAME ORIGIN: For Richard Geren (1917-), former executive vice-president of the Iron Ore Company of Canada. Mr. Geren initiated and supported the exploration program of the Strange Lake deposit. Gerhardtite     Cu2(NO3)(OH)3 NAME ORIGIN: Named for Charles Frederic Gerhardt (1816-1856), American chemist who first prepared the artificial compound. Germanite     Cu26Fe4Ge4S32 NAME ORIGIN: Named after its content of the element Germanium. Germanocolusite     Cu13V(Ge,As)3S16 NAME ORIGIN: Named in 1992 for its relationship to colusite. Gersdorffite     NiAsS NAME ORIGIN: Named after Herr von Gersdorff, owner of Schladming Mine, Austria. Gerstleyite     Na2(Sb,As)8S13•2(H2O) NAME ORIGIN: Named for J. M. Gerstley (1907-), President, Pacific Coast Borax Company. Gerstmannite     (Mg,Mn)2ZnSiO4(OH)2 NAME ORIGIN: Named for Ewald Gerstmann (1918- ), mineral collector of Franklin, New Jersey, USA. Getchellite     AsSbS3 NAME ORIGIN: For the locality. LOCALITY: At the Getchell mine, about 32 km northeast of Golconda, Humboldt Co., Nevada, USA. Geversite     Pt(Sb,Bi)2 NAME ORIGIN: For Professor T.W. Gevers. Gianellaite     Hg4(SO4)N2 NAME ORIGIN: Named for Vincent Paul Gianella (1886-1983), Head of the Department of Geology, MacKay School of Mines, University of Nevada, Reno, Nevada, USA. Giannettite *  (see Hainite ) See Also: GOOGLE, Athena, MinDAT, MinMax Gibbsite     Al(OH)3 NAME ORIGIN: Named after the American collector, G. Gibbs (1776-1833). Giessenite     Pb13(Cu,Ag)(Bi,Sb)9S28 (?) NAME ORIGIN: Named for Giessen, a village nearby the Binntal, Switzerland. Gilalite     Cu5Si6O17•7(H2O) NAME ORIGIN: Named for its locality. LOCALITY: Christmas mine, Gila County, Arizona, USA. Gillardite !     Cu3NiCl2(OH)6 NAME ORIGIN: Named for Professor D. Gillard, in recognition of his contributions to the field of inorganic chemistry. Gillespite     BaFe++Si4O10 NAME ORIGIN: Named for Frank Gillespie, of Richardson, Alaska, USA, who discovered the first specimen. Gillulyite     Tl2(As,Sb)8S13 NAME ORIGIN: Named in honor of the late James C. Gilluly, United States Geological Survey. Gilmarite !     Cu3(AsO4)(OH)3 NAME ORIGIN: Named for Gilbert Mari (1944-), mineralogist at the University of Nice-Sophia Antipolis, France. Giniite     Fe++Fe+++4(PO4)4(OH)2•2(H2O) NAME ORIGIN: Named by Paul Keller for his wife, Gini Keller. Ginorite     Ca2B14O23•8(H2O) NAME ORIGIN: Named for Prince Piero Ginori Conti (1865-1939), Florence, Italy, for his contributions to the Tuscan borax industry. Ginzburgite *  (see Roggianite ) See Also: GOOGLE, Athena, MinDAT, MinMax Giorgiosite     Mg5(CO3)4(OH)2•5(H2O) NAME ORIGIN: Named for one of the cones, Giorgios, created during the eruption at Santorin islands in 1866. Giraudite     (Cu,Zn,Ag)12(As,Sb)4(Se,S)13 NAME ORIGIN: To honor Roger Giraud, of the electron microprobe laboratory of the B.R.G.M.-C.N.R.S. in Orleans, France. Girdite     Pb3H2(Te++++O3)(Te++++++O6) NAME ORIGIN: Named for Richard Gird (1836-1910), mining engineer and assayer, who made the first rich silver assays and helped open up the Tombstone district. Girvasite     NaCa2Mg3(PO4)2[PO2(OH)2](CO3)(OH)2•4(H2O) NAME ORIGIN: Named for Lake Girvas, northwest of the Kovdor massif, Kola Peninsula, Russia. Gismondine     Ca2Al4Si4O16•9(H2O) NAME ORIGIN: Named after the Italian mineralogist, Carlo Giuseppe Gismondi (1762-1824), lecturer in Mineralogy in Rome. Gismondite *  (see Gismondine ) See Also: GOOGLE, Athena, MinDAT, MinMax Gittinsite     CaZrSi2O7 NAME ORIGIN: Named for John Gittins, Canadian petrologist, University of Toronto, Toronto, Ontario, Canada. Giuseppettite     [Na42K16Ca6]S64Si48Al48O192(SO4)10Cl2•5H2O NAME ORIGIN: Named for Giuseppe Giuseppetti, Professor of Mineralogy, University of Pavia, Pava, Italy. Gjerdingenite-Ca     K2Ca(Nb,Ti)4(Si4O12)2(O,OH)4•6H2O NAME ORIGIN: Named as the Ca-dominant analogue of gjerdingenite-Fe Gjerdingenite-Fe !     K2[(H2O)2(Fe,Mn)][(Nb,Ti)4(Si4O12)2(O,OH)4]•4(H2O) NAME ORIGIN: Named after the locality. LOCALITY: Gjerdingselva, Lunnar, Pooland, Norway. Gjerdingenite-Mn !     (K,Na)2(Mn,Fe)(Nb,Ti)4(Si4O12)2(O,OH)4•6(H2O) NAME ORIGIN: Named as the Mn-dominant analogue of gjerdingenite-Fe. Gjerdingenite-Na !     (K,Na)2Na(Nb,Ti)4(Si4O12)2(OH,O)4•5H2O NAME ORIGIN: Named as the Na-dominant analogue of gjerdingenite-Fe Gladite     PbCuBi5S9 NAME ORIGIN: Named after its locality LOCALITY: Gladhammer, Province of Kalmar, Sweden. Gladiusite !     Fe++2(Fe+++,Mg)4(PO4)(OH)13•H2O NAME ORIGIN: Name alludes to the crystal morphology which resembles a double edged sword (gladius, Latin for sword). Glagolevite !     NaMg6[Si3AlO10](OH,O)8•H2O NAME ORIGIN: Named for A. A. Glagolev (1927-1993), Russian mineralogist. Glaserite *  (see Aphthitalite ) See Also: GOOGLE, Athena, MinDAT, MinMax Glauber's Salt *  (see Glauberite ) See Also: GOOGLE, Athena, MinDAT, MinMax Glauberite     Na2Ca(SO4)2 NAME ORIGIN: Named after Glauber's Salt, of alchemist origin which is named for Johann Rudolf Glauber (1604-1668), German alchemist. Glaucocerinite     (Zn,Cu)5Al3(SO4)1.5(OH)16•9(H2O) NAME ORIGIN: Named from the Greek for "blue" and "waxlike". Glaucochroite     CaMnSiO4 NAME ORIGIN: From the Greek for blue green and color, in allusion to its color. Glaucodot     (Co,Fe)AsS NAME ORIGIN: From the Greek for "blue," in reference to its use in the dark blue glass called smalt. Glauconite     (K,Na)(Fe+++,Al,Mg)2(Si,Al)4O10(OH)2 NAME ORIGIN: From the Greek "glaucos" for the blue green color. Glaucophane     [ ]Na2(Mg3Al2)Si8O22(OH)2 NAME ORIGIN: From the Greek glaukos - "blue" and fanos - "appearing." Glaukosphaerite     (Cu,Ni)2(CO3)(OH)2 NAME ORIGIN: Named from the Greek for bluish green and spherical, the typical color and habit. Glendonite (calcite pseudomorphs) *  (see Ikaite ) See Also: GOOGLE, Athena, MinDAT, MinMax Glendonite - pseudomorph  (see Calcite ) See Also: GOOGLE, Athena, MinDAT, MinMax Globosite *  (see Strengite ) See Also: GOOGLE, Athena, MinDAT, MinMax Glucine     CaBe4(PO4)2(OH)4•0.5(H2O) NAME ORIGIN: Named for the alternative name for beryllium: Glucinum. Glushinskite     Mg(C2O4)•2(H2O) NAME ORIGIN: Named for Petr Ivanovich Glushinskii (1908- ), coal geologist, Institute of Arctic and Antarctic Geology, St. Petersburg, Russia. Gmelinite *  (see Gmelinite-Na ) See Also: GOOGLE, Athena, MinDAT, MinMax Gmelinite-Ca !     (Ca,Na2)Al2Si4O12•6(H2O) NAME ORIGIN: Named after the German mineralogist and chemist, Christian Gottlob Gmelin (1792-1860) of Turbingen, Germany. The Ca-dominant member of the gmelinite series. Gmelinite-K !     (K,Na,Ca)6(Al7Si17O48)•22(H2O) NAME ORIGIN: Named after the German mineralogist and chemist, Christian Gottlob Gmelin (1792-1860) of Turbingen, Germany. The K-dominant member of the gmelinite series. Gmelinite-Na     (Na2,Ca)Al2Si4O12•6(H2O) NAME ORIGIN: Named after the German mineralogist and chemist, Christian Gottlob Gmelin (1792-1860) of Turbingen, Germany. Na modifier added by the zeolite nomenclature committee. Go Juice *  (see Dilithium ) See Also: GOOGLE, Athena, MinDAT, MinMax Gobbinsite     (Na2,Ca)2K2Al6Si10O32•12(H2O) NAME ORIGIN: Named for the locality. LOCALITY: Basalt cliffs near Hills Port, south of the Gobbins area, County Antrim, Northern Ireland. Godlevskite     (Ni,Fe)9S8 NAME ORIGIN: Named for Mikhail N. Godlevsky (1902-1984), Russian economic geologist. Godovikovite     (NH4)(Al,Fe+++)(SO4)2 NAME ORIGIN: Named for A. A. Godovikov. Goedkenite     (Sr,Ca)2Al(PO4)2(OH) NAME ORIGIN: Named for V. L. Goedken. Goergeyite *  (see Gorgeyite ) See Also: GOOGLE, Athena, MinDAT, MinMax Goethite     Fe+++O(OH) NAME ORIGIN: Named after the German poet, J. W. Goethe (1749-1832). Goetzenite *  (see Gotzenite ) See Also: GOOGLE, Athena, MinDAT, MinMax Gold     Au NAME ORIGIN: Anglo Saxon, of uncertain origin. Goldamalgam *     (Au,Ag)Hg NAME ORIGIN: Named as the gold dominent analoge of amalgam. Goldfieldite     Cu12(Te,Sb,As)4S13 NAME ORIGIN: Named after its locality. LOCALITY: Mohawk mine, Goldfield, Esmeralda County., Nevada, USA. Goldichite     KFe+++(SO4)2•4(H2O) NAME ORIGIN: Named for Samuel Stephen Goldich (1909-2000), American mineralogist, petrologist, and analytical isotope chemist, Professor of Geology, University of Minnesota, Minneapolis, Minnesota, US Goldmanite     Ca3(V,Al,Fe+++)2(SiO4)3 NAME ORIGIN: The name honors Macus I. Goldman, a sedimentary petrologist with the U. S. Geological Survey. Goldquarryite !     (Cu,[ ])(Cd,Ca)2Al3(PO4)4F2(H2O)10{(H2O,F)}2 NAME ORIGIN: Named for the locality. LOCALITY: 5,425-foot bench of the Gold Quarry mine, Eureka County, Nevada, USA. Golyshevite !     (Na,Ca)10Ca9(Fe+++,Fe++)2Zr3NbSi25O72(CO3)(OH)3•H2O NAME ORIGIN: Named for Vladimir Mikhailovich Golyshev (1943-2000), crystallographer from the Mordvinian State University, Saransk, Russia. Gonnardite     Na2CaAl4Si6O20•7(H2O) NAME ORIGIN: Named for Ferdinand Gonnard, French mineralogist, Lyons, France. Gonyerite     Mn++3[Mn++3Fe+++][(Si,Fe+++)4O10](OH,O)8 NAME ORIGIN: Named for Forest A. Gonyer (1899-1971), chemist-analyst and mineralogist, Harvard University. Goosecreekite     CaAl2Si6O16•5(H2O) NAME ORIGIN: Named for the locality. LOCALITY: In the Goose Creek quarry, Leesburg, Loudoun County, Virginia, USA. Gorceixite     BaAl3(PO4)(PO3OH)(OH)6 NAME ORIGIN: Named after the French mineralogist Claude-Henri Gorceix (1842 - 1919) founder of the Mining School (Escola de Minas) in Ouro Preto. Gordaite !     NaZn(SO4)(OH)6Cl•6(H2O) NAME ORIGIN: Named after its locality. LOCALITY: The San Francisco mine, 2 km northeast of the Sierra Groda Railway Station, in the Sierra Gorda, northeast of Antofagasta, 2nd region, northern Chile. Gordonite     MgAl2(PO4)2(OH)2•8(H2O) NAME ORIGIN: Named for S. G. Gordon. Gorgeyite     K2Ca5(SO4)6•(H2O) NAME ORIGIN: Named for Rolf von Gorgey (1886-1915), mineralogist specializing in Austrian salt deposits. Gormanite     Fe++3Al4(PO4)4(OH)6•2(H2O) NAME ORIGIN: Named for Donald Herbert Groman (1922-), University of Toronto, Canada. Gortdrumite     (Cu,Fe)6Hg2S5 NAME ORIGIN: Named for the locality. LOCALITY: Gortdrum deposit, Tipperary, Eire. Goshenite - colorless  (see Beryl ) See Also: GOOGLE, Athena, MinDAT, MinMax Goslarite     ZnSO4•7(H2O) NAME ORIGIN: Named after its locality. LOCALITY: Rammelsberg mine, near Goslar, Harz, Germany. Gottardiite !     Na3Mg3Ca5Al19Si117O272•93(H2O) NAME ORIGIN: Named after Professor Glauco Gottardi (1928-1988), University of Modena, in recognition of his pioneering work on the structure and crystal chemistry of natural zeolites. Gottlobite !     CaMg(VO4,AsO4)(OH) NAME ORIGIN: Named after the locality. LOCALITY: Long abandoned Glucksstern Mine at Gottlob hill, Friedrichroda, Thuringia, Germany. Gotzenite     (Ca,Na)3(Ti,Al)Si2O7(F,OH)2 NAME ORIGIN: Named for Gustav Adolf Von Gotzen (1866-1910), German traveler and first European to climb Mt. Shaheru, North Kivu, Zaire. Goudeyite     (Al,Y)Cu6(AsO4)3(OH)6•3(H2O) NAME ORIGIN: Named for Hatfield Goudey (1906-1985), mining geologist and mineral collector of San Mateo, California, USA. Gowerite     CaB6O10•5(H2O) NAME ORIGIN: Named for Harrison Preston Gower (1890-1967), Mining Manager, U.S. Borax and Chemical Company, USA. Goyazite     SrAl3(PO4)2(OH)5•(H2O) NAME ORIGIN: Named after the province of Goyaz, Brazil. Graemite     CuTeO3•(H2O) NAME ORIGIN: Named for Richard Graeme, American geologist. Graeserite !     (Fe+++,Ti)4Ti3AsO13(OH) NAME ORIGIN: For Prof. Dr. Stefan Graeser (1935-), in recognition of his extensive research on the oxides and sulfosalts of arsenic in the Binntal region of Switzerland. Graftonite     (Fe++,Mn,Ca)3(PO4)2 NAME ORIGIN: Named after its locality at Grafton, New Hampshire, USA. Gramaccioliite-(Y) !     (Pb,Sr)(Y,Mn)Fe2(Ti,Fe)18O38 NAME ORIGIN: Named for Prof. Carlo M. Gramaccioli (1935-) of the University of Milano, Italy. Grandidierite     (Mg,Fe++)Al3(BO4)(SiO4)O NAME ORIGIN: Named for Alfred Grandidier (1836-1912), French naturalist and explorer, an authority on Madagascar. Grandreefite     Pb2SO4F2 NAME ORIGIN: Named for the locality. LOCALITY: Grand Reef mine, about six km northeast of Klondyke, Aravaipa district, Graham Co., Arizona, USA. Grandviewite !     Cu3Al9(SO4)2(OH)29 NAME ORIGIN: Named for the locality. LOCALITY: Grandview mine, Grand Canyon National Park, Coconino County, Arizona, USA Grantsite     Na4CaxV++++2xV+++++12-2xO32•8(H2O) NAME ORIGIN: Named after the town of Grants, New Mexico. Graphite     C NAME ORIGIN: From the Greek, graphein, "to write." Gratonite     Pb9As4S15 NAME ORIGIN: For Louis Carly Graton (1880-1970), Professor of Economic Geology, Harvard University, Cambridge, Massachusetts, USA. Grattarolaite !     Fe+++3O3(PO4) NAME ORIGIN: For Giuseppe Grattarola (1905-1988), professor of mineralogy at the University of Florence, Italy. Graulichite-(Ce) !     CeFe+++3(AsO4)2(OH)6 NAME ORIGIN: Named for Jean-Marie Graulich (1920-2001), Belgian mining engineer and Honorary Driector of the Geological survey of Belgium. Gravegliaite     Mn++(SO3)•3(H2O) NAME ORIGIN: Named for the locality. LOCALITY: Gambatesa mine, near Reppia, Val Graveglia, Liguria, Italy. Gray Antimony *  (see Stibnite ) See Also: GOOGLE, Athena, MinDAT, MinMax Gray nickel pyrites *  (see Gersdorffite ) See Also: GOOGLE, Athena, MinDAT, MinMax Grayite     (Th,Pb,Ca)PO4•(H2O) NAME ORIGIN: Named for Anton Gray, mining engineer, advisor to U. K. Atomic Energy Authority. Grechishchevite     Hg3S2(Br,Cl,I)2 NAME ORIGIN: Named for Oleg Konstantinovich Grechishchev, Russian engineering geologist, long-time student of mercury ores from Tuva, Siberia. Green lead ore *  (see Pyromorphite ) See Also: GOOGLE, Athena, MinDAT, MinMax Green Rust *  (see Fougerite ) See Also: GOOGLE, Athena, MinDAT, MinMax Green Vitrol *  (see Melanterite ) See Also: GOOGLE, Athena, MinDAT, MinMax Greenalite     (Fe++,Fe+++)2-3Si2O5(OH)4 NAME ORIGIN: In allusion to its green color. Greenockite     CdS NAME ORIGIN: Named after Lord Greenock (Ch. M. Cathcart 1783-1859). Greenovite - Mn bearing  (see Titanite ) See Also: GOOGLE, Athena, MinDAT, MinMax Gregoryite     (Na2,K2,Ca)CO3 NAME ORIGIN: Named for John Walter Gregory (1864-1932), University of Melbourne, Melbourne, Australia and University of Glasgow, Glasgow, Scotland. Greifensteinite !     Ca2Be4(Fe++,Mn)5(PO4)6(OH)4•6(H2O) NAME ORIGIN: Named for the locality. LOCALITY: Greifenstein, Saxony, Germany. Greigite     Fe++Fe+++2S4 NAME ORIGIN: For Dr. Joseph Wilson Grieg (1895-1977). Grenmarite !     (Zr,Mn)2(Zr,Ti)(Mn,Na)(Na,Ca)4(Si2O7)2(O,F)4 NAME ORIGIN: The name is after Grenmar, the Norse name of the Langesundsfjord. Griceite     LiF NAME ORIGIN: Named for Joel D. Grice (1946-), curator of minerals, Canadian Museum of Hature, Ottawa, Canada. Griffithite *     4(Mg,Fe,Ca)O.(Al,Fe)2O3.5SiO2•7(H2O) NAME ORIGIN: Named after its locality. LOCALITY: Cahuenga Pass, Griffith Park, Los Angeles, California, USA. Griffithite-Ferroan *  (see Saponite ) See Also: GOOGLE, Athena, MinDAT, MinMax Grimaldiite     Cr+++O(OH) NAME ORIGIN: Named for Frank Saverio Grimaldi (1915- ), formerly Chief Chemist, U.S. Geological Survey. Grimselite     K3Na(UO2)(CO3)3•(H2O) NAME ORIGIN: Named for the locality. LOCALITY: Gerstenegg (Kabelstollen Gerstenegg-Grimsel I), Grimsel, Bern, Switzerland. Griphite     Ca(Mn,Na,Li)6Fe++Al2(PO4)6(F,OH)2 NAME ORIGIN: From the Greek for "enigma", as the chemical composition was originally puzzling. Grischunite     NaCa2Mn++5Fe+++(AsO4)6•2(H2O) NAME ORIGIN: Named from the former Romansch name Grischun for Graubunden Canton. Grossite     CaAl4O7 NAME ORIGIN: Named for Shulamit Gross (1923- ), Geological Survey of Israel, Jerusalem, Israel, who noted the species in the Hatrurim Formation, Israel. Grossmanite     CaTi+++AlSiO6 NAME ORIGIN: Commission on New Minerals, Nomenclature and Classification (CNMNC) Grossular     Ca3Al2(SiO4)3 NAME ORIGIN: Grossular is from the Latin grossularia meaning "gooseberry." Hessonite is from the Greek hesson, meaning "slight" in reference to the smaller specific gravity. Grossularite *  (see Grossular ) See Also: GOOGLE, Athena, MinDAT, MinMax Grothite - Al bearing  (see Titanite ) See Also: GOOGLE, Athena, MinDAT, MinMax Groutellite - pseudomorph of ramsdellite after groutite  (see Ramsdellite ) See Also: GOOGLE, Athena, MinDAT, MinMax Groutite     Mn+++O(OH) NAME ORIGIN: Named for Frank Fitch Grout (1880-1958), petrologist, of the University of Minnesota, Minneapolis, Minnesota, USA. Grovesite *  (see Pennantite ) See Also: GOOGLE, Athena, MinDAT, MinMax Grumantite     NaHSi2O5•(H2O) NAME ORIGIN: Named from the old Russian name for the Spitzbergen Archipelago, Arctic Ocean. Grumiplucite !     HgBi2S4 NAME ORIGIN: Named after the amateur mineralogical organization Gruppo Mineralogico e Paleontologico Lucchese, members of which provided the specimens for study. Grunerite     [ ]Fe++7Si8O22(OH)2 NAME ORIGIN: Named for Louis Emmanuel Gruner (1809-1883), Swiss-French chemist who analyzed the mineral. Grunlingite *  (see Imogolite ) See Also: GOOGLE, Athena, MinDAT, MinMax Gruzdevite     Cu6Hg3Sb4S12 NAME ORIGIN: To honor the Russian mineralogist, V.S. Gruzdev (1938-1977). Guadalcazarite(Zn) *  (see Metacinnabar ) See Also: GOOGLE, Athena, MinDAT, MinMax Guanacoite !     (Cu,Mg)2Mg2(Mg,Cu)(OH)4(H2O)4(AsO4)2 NAME ORIGIN: Named for the locality. LOCALITY: Mine dump at the El Guanaco Mine, East Catalina, Chile, South America Guanajuatite     Bi2Se3 NAME ORIGIN: For the locality. LOCALITY: In the Santa Catarina and La Industrial mines, Sierra de Santa Rosa, near Guanajuato, Mexico. Guanglinite *  (see Isomertieite ) See Also: GOOGLE, Athena, MinDAT, MinMax Guanine     C5H3(NH2)N4O NAME ORIGIN: Namd for its derivation from and association with guano. Guarinoite     (Zn,Co,Ni)6(SO4)(OH,Cl)10•5(H2O) NAME ORIGIN: Named for Andre Guarino, French mineral collector. Gudmundite     FeSbS NAME ORIGIN: Named after its locality. LOCALITY: Gudmundstorp, Sala, Västmanland, Sweden. Guerinite     Ca5(AsO3OH)2(AsO4)2•9(H2O) NAME ORIGIN: Named for H. Guerin. Guettardite     Pb(Sb,As)2S4 NAME ORIGIN: Named for Jean Etienne Guettard (17-15-1786), French geologist. Gugiaite     Ca2BeSi2O7 NAME ORIGIN: Named for the locality. LOCALITY: Near the village of Gugia, otherwise unlocated in China. Guildite     CuFe+++(SO4)2(OH)•4(H2O) NAME ORIGIN: Named for Frank Nelson Guild (1870-1939), American mineralogist and economic geologist, University of Arizona, Tucson, Arizona, USA. Guilleminite     Ba(UO2)3(SeO3)2O2•3(H2O) NAME ORIGIN: Named for French Claude Guillemin (1923-1994), founder of the National Geological Service of the BRGM. Guimaraesite     Ca2(Zn,Mg,Fe)5Be4(PO4)6(OH)4•6H2O NAME ORIGIN: Commission on New Minerals, Nomenclature and Classification (CNMNC) Guitermanite *  (see Baumhauerite ) See Also: GOOGLE, Athena, MinDAT, MinMax Gumbelite *  (see Illite ) See Also: GOOGLE, Athena, MinDAT, MinMax Gummite *  (see Uraninite ) See Also: GOOGLE, Athena, MinDAT, MinMax Gunningite     (Zn,Mn)SO4•(H2O) NAME ORIGIN: Named for Henry Cecil Gunning (1901-1991), Geological Survey of Canada and Professor of Geology, University of British Columbia, Vancouver, Canada. Gupeiite     Fe3Si NAME ORIGIN: Named for the eastern passageway, Gupeikou, of the Great Wall of China. Gustavite     PbAgBi3S6 (?) NAME ORIGIN: Named for Gustav Hageman (1842-1916), Danish chemical engineer. Gutkovaite-Mn !     CaK2Mn(Ti,Nb)4(Si4O12)2(O,OH)4•5(H2O) NAME ORIGIN: Named for N. N. Gukova (1896-1960?), Russian mineralogist.. Gutsevichite ?     Al3(PO4)2(OH)3•8(H2O) NAME ORIGIN: Named in 1959 for V. P. Gutsevich, geologist in Kazakhstan. Guyanaite     CrO(OH) NAME ORIGIN: Named for the localtiy. LOCALITY: Merume River and its tributaries, Mazaruni district, Guyana. Gwihabaite !     (NH4,K)(NO3) NAME ORIGIN: Named after it's locality. LOCALITY: Gewihaba Cave (also known as Drotsky's Cave), northwestern Botswana, 280 km west of Maun. Gypsum     CaSO4•2(H2O) NAME ORIGIN: From the Greek, gyps meaning "burned" mineral. Selenite from the Greek in allusion to its pearly luster (moon light) on cleavage fragments. Gyrolite     NaCa16Si23AlO60(OH)8•64(H2O) NAME ORIGIN: From the Greek guros = "circle", in allusion to the round form of the crystalline groupings. Gysinite-(Nd)     Pb(Nd,La)(CO3)2(OH)•(H2O) NAME ORIGIN: Named for Marcel Gysin (1891-1974), Professor of Mineralogy, University of Geneva, Geneva, Switzerland.

Index A Minerals Index B Minerals Index C Minerals Index D Minerals Index E Minerals Index F Minerals Index G Minerals Index H Minerals Index I Minerals Index J Minerals Index K Minerals Index L Minerals Index M Minerals Index N Minerals Index O Minerals Index P Minerals Index Q Minerals Index R Minerals Index S Minerals Index T Minerals Index U Minerals Index V Minerals Index W Minerals Index X Minerals Index Y Minerals Index Z Minerals All LEGEND Minerals identified with this icon have a sound file, courtesy of The Photo-Atlas of Minerals, which gives the pronunciation of the mineral name. Minerals identified with this icon have an image or picture in the database which may be viewed. Minerals identified with this icon have a Java crystal form, created with the program JCrystal, which can be manipulated and rotated. This icon links the mineral to the locality-rich information contained in Mindat.org. Minerals identified with this icon are radioactive. - Detectable with very sensitive instruments, - very mild, - weak, - strong, - very strong, - dangerous. * Mineral Name is Not IMA Approved. ! New Dana Classification Number Has Been Changed or Added. ? IMA Discredited Mineral Species Name.