1. G

1.1. Ga – Ge

Galena, compound crystal, Naica, Municipio de Saucillo, Chihuahua, Mexico; size: 2.7 x 2.4 x 1.6 cm. https://handwiki.org/wiki/index.php?curid=1772673

Galena from the Sweetwater Mine, Southeast Missouri Lead District, US; size: 6.9 x 5.4 x 4.2 cm

Etched and hollowed-out galena crystals with yellow sphalerite, Septemvri mine, Madan ore field, Rhodope Mountains, Bulgaria; size: 4.4 x 3.9 x 2.2 cm. https://handwiki.org/wiki/index.php?curid=1202983

Red garnet with smoky quartz, Lechang Mine, Lechang, Guangdong Province, China; 8.8 x 6.1 x 3.5 cm

Gaspéite in massive form. https://handwiki.org/wiki/index.php?curid=1310083

Lustrous, black, hexagonal gaudefroyite prisms to 8 mm, with red andradite and white barite; size: 9.2 x 6.7 x 5.8 cm. https://handwiki.org/wiki/index.php?curid=1154448

Geikielite with distinct big crystals. https://handwiki.org/wiki/index.php?curid=1223621

Genthelvite on albite. https://handwiki.org/wiki/index.php?curid=1871491

Nodule of crystallized gerstleyite in boron matrix. https://handwiki.org/wiki/index.php?curid=1195907

Gibbsite on matrix. https://handwiki.org/wiki/index.php?curid=1950606

Blue gilalite in quartz, Ceará, Northeast Region, Brazil; 7.1 x 4.7 x 2.7 cm. https://handwiki.org/wiki/index.php?curid=1959304

Iridescent goethite, Filón Sur Mine, Tharsis, Huelva, Spain; size: 5.0 x 3.5 x 3.1 cm. https://handwiki.org/wiki/index.php?curid=1469760

Gold vein stockwork in limonite, from Gold Flake Vein, Farncomb Hill, Breckenridge Mining District, Summit County, Colorado, USA. https://handwiki.org/wiki/index.php?curid=1343391

Crystalline gold, Lizard Ridge Mine, Ten Mile District, Humboldt County, Nevada, US; 1.2 x 0.7 x 0.1 cm. https://handwiki.org/wiki/index.php?curid=1288325

Very fine old California Mother Lode crystalline-gold specimen; 5.3 x 2.7 x 2.4 cm

Crystallized example of grandidierite

Grossular from Sibinndi, Nioro du Sahel Circle, Kayes Region, Mali

Groutite from Emilie Mine, Peine, Lower Saxony, Germany

Two very rare selenites, demesmaekerite and yellow guilleminite

Guimarãesite from Piauí valley, Taquaral, Itinga, Jequitinhonha valley, Minas Gerais, Southeast Region, Brazil

1. Gabrielite (IMA2002-053) 2.HD.60 [1] [2] [3]
   (IUPAC: dithallium silver dicopper heptasulfur triarsenide)
2. Gabrielsonite (IMA2017-G, IMA1966-011) 8.BH.35 [4] [5] [6]
   (IUPAC: lead iron(III) hydro arsenite)
3. Gadolinite 9.AJ.20
   (IUPAC: diREE iron(II) diberyllium dioxy disilicate)
   1. Gadolinite-(Ce) (IMA1987 s.p., 1978) 9.AJ.20 [7] [8] [9]
   2. Gadolinite-(Nd) (IMA2016-013) 9.AJ.20 [10] [no] [no]
   3. Gadolinite-(Y) (IMA1987 s.p., 1802) 9.AJ.20 [11] [12] [13]
4. Gagarinite (gagarinite) 3.AB.35
   (IUPAC: sodium calcium REE hexafluoride)
   1. Gagarinite-(Ce) (IMA2010-C, IMA1993-038 Rd) 3.AB.35 [14] [15] [16]
   2. Gagarinite-(Y) (IMA1967 s.p., 1961) 3.AB.35 [17] [18] [19]
5. Gageite (Y: 1910) 9.DH.35 [20] [21] [22]
6. Gahnite (spinel, spinel: 1807) 4.BB.05 [23] [24] [25]
   (IUPAC: zinc dialuminium tetraoxide)
7. Gaidonnayite (gaidonnayite: IMA1973-008) 9.DM.15 [26] [27] [28]
   (IUPAC: disodium zirconium trisilicate nonaoxy hydrate)
8. Gainesite (IMA1978-020) 8.CA.20 [29] [30] [31]
9. Gaitite (fairfieldite: IMA1978-047) 8.CG.05 [32] [33] [34]
   (IUPAC: dicalcium zinc diarsenate dihydrate)
10. Gajardoite (IMA2015-040) 4.0 [35] [no] [no]
11. Galaxite (spinel, spinel: 1932) 4.BB.05 [36] [37] [38]
    (IUPAC: manganese(II) dialuminium tetraoxide)
12. Galeite (IMA1967 s.p., 1963) 7.BD.10 [39] [40] [41]
    (IUPAC: pentadecasodium chloro tetrafluoro pentasulfate)
13. Galena (galena, rocksalt: Pliny the Elder) 2.CD.10 [42] [43] [44]
    (IUPAC: lead sulfide)
14. Galenobismutite (kobellite: 1878) 2.JC.25e [45] [46] [47]
    (IUPAC: lead dibismuth tetrasulfide)
15. Galgenbergite-(Ce) (IMA1997-036) 5.CC.40 [48] [49] [50]
    (IUPAC: calcium dicerium tetracarbonate monohydrate)
16. Galileiite (fillowite: IMA1996-028) 8.AC.50 [51] [52] [53]
    (IUPAC: sodium tetrairon(II) triphosphate)
17. Galkhaite (tennantite: IMA1971-029) 2.GB.20 [54] [55] [56]
    (IUPAC: (pentamercury copper) caesium dodecasulfide tetrarsenide)
18. Galliskiite (IMA2009-038) 8.0 [57] [no] [no]
    (IUPAC: tetracalcium dialuminium octafluoro diphosphate pentahydrate)
19. Gallite (chalcopyrite: 1958) 2.CB.10a [58] [59] [60]
    (IUPAC: copper gallium disulfide)
20. Gallobeudantite (beudantite, alunite: IMA1994-021) 8.BL.05 [61] [62] [63]
    (IUPAC: lead trigallium hexahydro arsenate sulfate)
21. Galloplumbogummite (alunite, crandallite: IMA2010-088) 8.B?. [64] [no] [no]
22. Galuskinite (IMA2010-075) 9.0 [65] [no] [66]
    (IUPAC: heptacalcium trisilicate carbonate)
23. Gamagarite (brackebuschite: 1943) 8.BG.05 [67] [68] [69]
    (IUPAC: dibarium iron(III) hydro divanadate)
24. Gananite (IMA1983-006) 3.AC.20 [70] [71] [72]
    (IUPAC: bismuth trifluoride)
25. Ganomalite (ganomalite: 1876) 9.BG.25 [73] [74] [75]
    (IUPAC: nonalead hexacalcium tetra(heptaoxydisilicate) oxy(tetraoxysilicate))
26. Ganophyllite (Y: 1890) 9.EG.30 [76] [77] [78]
27. Ganterite (mica: IMA2000-033) 9.EC.15 [79] [80] [81]
28. Gaotaiite (pyrite: IMA1993-017) 2.EB.05a [82] [83] [84]
    (IUPAC: triiridium octatelluride)
29. Garavellite (berthierite: IMA1978-018) 2.HA.20 [85] [86] [87]
    (IUPAC: iron tetrasulfa antimonide bismuthide)
30. Garmite (mica: IMA2017-008) 9.E?. [88] [no] [no]
    (IUPAC: caesium lithium dimagnesium (decaoxytetrasilicate) difluoride)
31. Garrelsite (Y: 1955) 9.AJ.15 [89] [90] [91]
32. Garronite (zeolitic tectosilicate) 9.GC.05
    1. Garronite-Ca (IMA1997 s.p., 1962) 9.GC.05 [92] [93] [94]
    2. Garronite-Na (IMA2015-15) 9.GC.05 [95] [no] [96]
33. Gartrellite (tsumcorite: IMA1988-039 Rd) 8.CG.20 [97] [98] [99]
    (IUPAC: lead copper iron(III) hydro diarsenate monohydrate)
34. Garutiite (alloy: IMA2008-055) 1.AG.05 [100] [no] [101]
    (IUPAC: (nickel,iron,iridium) alloy)
35. Garyansellite (reddingite: IMA1981-019) 8.CC.05 [102] [103] [104]
    (IUPAC: dimagnesium iron(III) hydro diphosphate dihydrate)
36. Gasparite (monazite) 8.AD.50
    (IUPAC: REE arsenate)
    1. Gasparite-(Ce) (IMA1986-031) 8.AD.50 [105] [106] [107]
    2. Gasparite-(La) (IMA2018-079) 8.AD.50 [108] [no] [no]
37. Gaspéite (calcite: IMA1965-029) 5.AB.05 [109] [110] [111]
    (IUPAC: nickel carbonate)
38. Gatedalite (braunite: IMA2013-091) 9.A?. [112] [no] [no]
    (IUPAC: zirconium dimanganese(II) tetramanganese(III) octaoxy tetraoxysilicate)
39. Gatehouseite (arsenoclasite: IMA1992-016) 8.BD.10 [113] [114] [115]
    (IUPAC: pentamanganese tetrahydro diphosphate)
40. Gatelite-(Ce) (gatelite: IMA2001-050) 9.BG.50 [116] [117] [no]
41. Gatewayite (polyoxometalate: IMA2014-096) 4.0 [118] [no] [no]
42. Gatumbaite (IMA1976-019) 8.DJ.10 [119] [120] [121]
    (IUPAC: calcium dialuminium dihydro diphosphate monohydrate)
43. Gaudefroyite (IMA1964-006) 6.AB.60 [122] [123] [124]
    (IUPAC: tetracalcium trimanganese(III) trioxo triborate carbonate)
44. Gaultite (zeolitic tectosilicate: IMA1992-040) 9.GF.20 [125] [126] [no]
45. Gauthierite (IMA2016-004) 4.0 [127] [no] [no]
    (IUPAC: potassium lead [heptauranyl heptahydro pentoxide octahydrate)
46. Gayite (dufrenite: IMA2008-056) 8.DK.15 [128] [no] [no]
    (IUPAC: sodium manganese(II) pentairon(III) hexahydro tetraphosphate diphosphate)
47. Gaylussite (Y: 1826) 5.CB.35 [129] [130] [131]
    (IUPAC: disodium calcium dicarbonate pentahydrate)
48. Gazeevite (zadovite, arctite: IMA2015-037) 9.0 [132] [no] [no]
    (IUPAC: barium hexacalcium di(tetraoxysilicate) oxo(disulfate))
49. Gearksutite (IMA1962 s.p., 1868) 3.CC.05 [133] [134] [135]
    (IUPAC: calcium hydro tetrafluoroaluminate monohydrate)
50. Gebhardite (IMA1979-071) 4.JB.50 [136] [137] [138]
    (IUPAC: octalead hexachloro di(pentoxydiarsenic) oxide)
51. Gedrite [Mg-Fe-Mn-amphibole: IMA2012 s.p., 1836] 9.DD.05 [139] [140] [141]
52. Geerite (IMA1978-024) 2.BA.05 [142] [143] [144]
    (IUPAC: octacopper pentasulfide)
53. Geffroyite (pentlandite: IMA1980-090) 2.BB.15 [145] [146] [147]
54. Gehlenite (melilite: 1815) 9.BB.10 [148] [149] [150]
    (IUPAC: dicalcium aluminium (heptaoxyalumosilicate))
55. Geigerite (lindackerite: IMA1985-028) 8.CE.05 [151] [152] [153]
    (IUPAC: pentamanganese(II) diarsenate di(hydrogenarsenate) decahydrate)
56. Geikielite (corundum: 1893) 4.CB.05 [154] [155] [156]
    (IUPAC: magnesium titanium trioxide)
57. Gelosaite (gelosaite: IMA2009-022) 7.0 [157] [no] [no]
58. Geminite (IMA1988-045) 8.CB.30 [158] [159] [160]
    (IUPAC: copper(II) hydroxoarsenate monohydrate)
59. Gengenbachite (IMA2001-003b) 8.CA.65 [161] [162] [no]
    (IUPAC: potassium triiron(III) di(dihydroxophosphate) tetrahydroxophosphate hexahydrate)
60. Genkinite (IMA1976-051) 2.AC.35a [163] [164] [165]
    (IUPAC: tetraplatinum triantimonide)
61. Genplesite (fleischerite: IMA2014-034) 7.0 [166] [no] [no]
    (IUPAC: tricalcium tin hexahydro disulfate trihydrate)
62. Genthelvite (cancrinite-sodalite: 1892) 9.FB.10 [167] [168] [169]
    (IUPAC: triberyllium tetrazinc trisilicate sulfide)
63. Geocronite (geocronite: 1839) 2.JB.30a [170] [171] [172]
64. Georgbarsanovite (eudialyte: IMA2003-013) 9.CO.10 [173] [174] [175]
65. Georgbokiite (IMA1996-015) 4.JG.05 [176] [177] [178]
    (IUPAC: pentacopper dioxo dichloro diselenite)
66. Georgechaoite (IMA1984-024) 9.DM.15 [179] [180] [181]
    (IUPAC: potassium sodium zirconium nonaoxytrisilicate dihydrate)
67. George-ericksenite (IMA1996-049) 4.KD.10 [182] [183] [184]
    (IUPAC: hexasodium calcium magnesium hexaiodate dichromate dodecahydrate)
68. Georgeite (amorphous: IMA1977-004 Rd) 5.BA.10 [185] [186] [187]
    (IUPAC: dicopper dihydro carbonate)
69. Georgerobinsonite (IMA2009-068) 7.0 [188] [no] [no]
    (IUPAC: tetralead dihydro fluoro chloro dichromate)
70. Georgiadesite (Y: 1907) 4.JB.70 [189] [190] [191]
    (IUPAC: tetralead tetrachloro hydro arsenite)
71. Gerasimovskite (Y: 1957) 4.FM.25 [192] [193] [194]
    (IUPAC: manganese(II) penta(titanium,niobium) dodecaoxide nonahydrate(?))
72. Gerdtremmelite (IMA1983-049a) 8.BE.40 [195] [196] [197]
    (IUPAC: zinc dialuminium pentahydro arsenate)
73. Gerenite-(Y) (IMA1993-034) 9.CJ.45 [198] [199] [no]
74. Gerhardtite (Y: 1885) 5.NB.05 [200] [201] [202]
    (IUPAC: dicopper trihydro nitrate)
75. Germanite (germanite: 1922) 2.CB.30 [203] [204] [205]
    (IUPAC: tridecacopper diiron digermanium hexadecasulfide)
76. Germanocolusite (germanite: IMA1991-044) 2.CB.30 [206] [207] [208]
    (IUPAC: tridecacopper vanadium trigermanium hexadecasulfide)
77. Gersdorffite (IMA1986 s.p., 1845 Rd) 2.EB.25 [209] [210] [211]
    (IUPAC: nickel arsenide sulfide)
    Polytypes: Pa3 (pyrite group), P2₁3 (ullmannite group), Pca2₁ (cobaltite group)
78. Gerstleyite (Y: 1956) 2.HE.05 [212] [213] [214]
    (IUPAC: disodium octa(antimonide,arsenide) tridecasulfide dihydrate)
79. Gerstmannite (IMA1975-030) 9.AE.25 [215] [216] [217]
    (IUPAC: manganese(II) magnesium zinc tetraoxysilicate tetrahydroxyl)
80. Geschieberite (IMA2014-006) 7.0 [218] [no] [no]
    (IUPAC: dipotassium uranyl disulfate dihydrate)
81. Getchellite (IMA1965-010) 2.FA.35 [219] [220] [221]
    (IUPAC: antimony arsenide trisulfide)
82. Geversite (pyrite: IMA1967 s.p., 1961) 2.EB.05a [222] [223] [224]
    (IUPAC: platinum diantimonide)

1.2. Gh – Gy

1. Ghiaraite (IMA2012-072) 3.0 [225] [no] [no]
   (IUPAC: calcium dichloride tetrahydrate)
2. Giacovazzoite (IMA2018-165) 7.0 [226] [no] [no]
3. Gianellaite (IMA1972-020) 3.DD.30 [227] [228] [229]
   (IUPAC: hydrous di(dimercury nitride) sulfate)
4. Gibbsite (IMA1962 s.p., 1822) 4.FE.10 [230] [231] [232]
   (IUPAC: aluminium trihydroxide)
5. Giessenite (kobellite: IMA1963-004) 2.HB.10b [233] [234] [235]
6. Giftgrubeite (hureaulite: IMA2016-102) 8.0 [236] [no] [no]
   (IUPAC: calcium dimanganese dicalcium diarsenate di(hydroxoarsenate) tetrahydrate)
7. Gilalite (IMA1979-021) 9.HE.05 [237] [238] [239]
   (Cu₅Si₆O₁₇·7H₂O)
8. Gillardite (atacamite: IMA2006-041) 3.DA.10c [240] [241] [no]
   (IUPAC: tricopper(II) nickel dichloride hexahydroxide)
9. Gillespite (gillespite: 1922) 9.EA.05 [242] [243] [244]
   (BaFe²⁺Si₄O₁₀)
10. Gillulyite (IMA1989-029) 2.JC.10 [245] [246] [247]
    (Tl₂As_7.5Sb_0.3S₁₃)
11. Gilmarite (gilmarite: IMA1996-017) 8.BE.25 [248] [249] [250]
    (IUPAC: tricopper(II) trihydro arsenate)
12. Giniite (IMA1977-017) 8.DB.50 [251] [252] [253]
    (IUPAC: iron(II) tetrairon(III) dihydro tetraphosphate dihydrate)
13. Ginorite (Y: 1934) 6.FC.15 [254] [255] [256]
    (Ca₂B₁₄O₂₀(OH)₆·5H₂O)
14. Giorgiosite^Q (Y: 1879) 5.DA.05 [257] [258] [259]
15. Giraudite-(Zn) (tetrahedrite: IMA2018-K, IMA1980-089) 2.GB.05 [260] [261] [262]
    (Cu₆(Cu₄Zn₂)As₄Se₁₃)
16. Girvasite (IMA1988-046) 8.DO.05 [263] [264] [265]
    (NaCa₂Mg₃(PO₄)₂[PO₂(OH)₂](CO₃)(OH)₂·4H₂O)
17. Gismondine (zeolitic tectosilicate) 9.GC.05
    1. Gismondine-Ba^H (2001) 9.GC.05 [266] [no] [no]
    2. Gismondine-Ca (IMA1997 s.p., 1817) 9.GC.05 [267] [268] [269]
18. Gittinsite (thortveitite: IMA1979-034) 9.BC.05 [270] [271] [272]
    (IUPAC: calcium zirconium heptaoxo disilicate)
19. Giuseppettite (cancrinite-sodalite: IMA1979-064) 9.FB.05 [273] [274] [275]
20. Gjerdingenite (labuntsovite) 9.CE.30c
    1. Gjerdingenite-Ca (IMA2005-029) 9.CE.30c [276] [277] [278]
    2. Gjerdingenite-Fe (IMA2001-009) 9.CE.30c [279] [280] [no]
    3. Gjerdingenite-Mn (IMA2003-015) 9.CE.30c [281] [282] [no]
    4. Gjerdingenite-Na (IMA2005-030) 9.CE.30c [283] [284] [285]
21. Gladite (meneghinite: 1924) 2.HB.05a [286] [287] [288]
    (CuPbBi₅S₉)
22. Gladiusite (IMA1998-011) 8.DF.40 [289] [290] [291]
    (IUPAC: diiron(III) tetrairon(II) undecahydro phosphate monohydrate)
23. Gladkovskyite (IMA2018-098) 2.0 [292] [no] [no]
    (MnTlAs₃S₆)
24. Glagolevite (IMA2001-064) 9.EC.55 [293] [294] [no]
25. Glauberite (Y: 1808) 7.AD.25 [295] [296] [297]
    (IUPAC: disodium calcium disulfate)
26. Glaucocerinite (hydrotalcite: 1932) 7.DD.35 [298] [299] [300]
27. Glaucochroite (olivine: 1899) 9.AC.05 [301] [302] [303]
    (IUPAC: calcium manganese(II) tetraoxysilicate)
28. Glaucodot (arsenopyrite: 1849) 2.EB.10c [304] [305] [306]
    ((Co_0.5Fe_0.5)AsS)
29. Glauconite, mica series (Y: 1927) 9.EC. [307] [308] [309]
30. Glaucophane [Na-amphibole: IMA2012 s.p., 1845] 9.DE.25 [310] [311] [312]
31. Glaukosphaerite (malachite: IMA1972-028) 5.BA.10 [313] [314] [315]
    (IUPAC: copper nickel dihydro carbonate)
32. Glikinite (IMA2018-119) 7.0 [316] [no] [no]
    (IUPAC: trizinc oxo(disulfate))
33. Glucine (mineral) (IMA1967 s.p., 1963) 8.DA.45 [317] [318] [319]
    (CaBe₄(PO₄)₂(OH)₄·0.5H₂O)
34. Glushinskite (humboldtine: IMA1985-Q Rd) 10.AB.10 [320] [321] [322]
    (IUPAC: magnesium oxalate dihydrate)
35. Gmalimite (djerfisherite: IMA2019-007) 2.0 [323] [no] [no]
    (K₆☐Fe²⁺₂₄S₂₇)
36. Gmelinite (zeolitic tectosilicate) 9.GD.05
    1. Gmelinite-Ca (IMA1997 s.p.) 9.GD.05 [324] [325] [no]
    2. Gmelinite-K (IMA1999-039) 9.GD.05 [326] [327] [no]
    3. Gmelinite-Na (IMA1997 s.p., 1825) 9.GD.05 [328] [329] [330]
37. Gobbinsite (zeolitic tectosilicate: IMA1980-070) 9.GC.05 [331] [332] [333]
38. Gobelinite (ktenasite: IMA2018-167) 7.0 [334] [no] [no]
    (IUPAC: cobalt tetracopper hexahydro disulfate hexahydrate)
39. Godlevskite (pentlandite: IMA1968-032) 2.BB.15 [335] [336] [337]
    (IUPAC: nona(nickel,iron) octasulfide)
40. Godovikovite (sabieite: IMA1987-019) 7.AC.20 [338] [339] [340]
    (IUPAC: ammonium aluminium disulfate)
41. Goedkenite (brackebuschite: IMA1974-004) 8.BG.05 [341] [342] [343]
    (IUPAC: distrontium aluminium hydro diphosphate)
42. Goethite ("O(OH)" group: IMA1980 s.p., 1919) 4.F [344] [345] [346]
    (IUPAC: hydro α-iron(III) oxide)
43. Gold (element: old) 1.AA.05 [347] [348] [349]
44. Goldfieldite (tetrahedrite: IMA2018-K, 1909 Rd) 2.GB.05 [350] [351] [352]
    ((Cu₄☐₂)Cu₆Te₄S₁₃)
45. Goldichite (Y: 1955) 7.CC.40 [353] [354] [355]
    (IUPAC: potassium iron(III) disulfate tetrahydrate)
46. Goldmanite (garnet, garnet: IMA1963-003) 9.AD.25 [356] [357] [358]
    (IUPAC: tricalcium divanadium(III) tri(tetraoxysilicate))
47. Goldquarryite (IMA2001-058) 8.DB.65 [359] [360] [no]
    (IUPAC: copper dicadmium trialuminium trifluoro tetraphosphate decahydrate)
48. Goldschmidtite (perovskite: IMA2018-034) 4.C [361] [no] [no]
    (IUPAC: potassium niobium trioxide)
49. Golyshevite (eudialyte: IMA2004-039) 9.CO.10 [362] [363] [364]
50. Gonnardite (zeolitic tectosilicate: IMA1997 s.p., 1896 Rd) 9.GA.05 [365] [366] [367]
51. Gonyerite (chlorite: 1955) 9.EC.55 [368] [369] [370]
52. Goosecreekite (zeolitic tectosilicate: IMA1980-004) 9.GB.25 [371] [372] [373]
53. Gorbunovite (mica: IMA2017-040) 9.E?. [374] [no] [no]
54. Gorceixite (alunite, crandallite: 1906) 8.BL.10 [375] [376] [377]
    (IUPAC: barium trialuminium hexahydro phosphate hydroxophosphate)
55. Gordaite (ktenasite: IMA1996-006) 7.DF.50 [378] [379] [380]
    (IUPAC: sodium tetrazinc hexahydro chloro sulfate hexahydrate)
56. Gordonite (laueite, laueite: 1930) 8.DC.30 [381] [382] [383]
    (IUPAC: magnesium dialuminium dihydro diphosphate octahydrate)
57. Gorerite (magnetoplumbite: IMA2019-080) 4.0 [384] [no] [no]
58. Görgeyite (Y: 1953) 7.CD.30 [385] [386] [387]
    (IUPAC: dipotassium pentacalcium hexasulfate monohydrate)
59. Gormanite (souzalite: IMA1977-030) 8.DC.45 [388] [389] [390]
    (IUPAC: triiron(II) tetraluminium hexahydro tetraphosphate dihydrate)
60. Gortdrumite (IMA1979-039) 2.BD.10 [391] [392] [393]
    (Cu₂₄Fe₂Hg₉S₂₃)
61. Goryainovite (IMA2015-090) 8.0 [394] [no] [no]
    (IUPAC: dicalcium phosphate chloride)
62. Goslarite (epsomite: 1845) 7.CB.40 [395] [396] [397]
    (IUPAC: zinc sulfate heptahydrate)
63. Gottardiite (zeolitic tectosilicate: IMA1994-054) 9.GF.10 [398] [399] [no]
64. Gottlobite (adelite: IMA1998-066) 8.BH.35 [400] [401] [no]
    (IUPAC: calcium magnesium hydro vanadate)
65. Götzenite (seidozerite, rinkite: IMA1962 s.p., 1957) 9.BE.22 [402] [403] [404]
    (Ca₄NaCa₂Ti(Si₂O₇)₂(OF)F₂)
66. Goudeyite (mixite: IMA1978-015) 8.DL.15 [405] [406] [407]
    (IUPAC: hexacopper aluminium hexahydro triarsenate trihydrate)
67. Gowerite (IMA1962 s.p., 1959) 6.EC.10 [408] [409] [410]
    (Ca[B₅O₈(OH)][B(OH)₃]·3H₂O)
68. Goyazite (alunite, crandallite: IMA1999 s.p., 1884 Rd) 8.BL.10 [411] [412] [413]
    (IUPAC: strontium trialuminium hexahydro phosphate hydroxophosphate hydrate)
69. Graemite (tellurite: IMA1974-022) 4.JM.15 [414] [415] [416]
    (IUPAC: copper(II) tellurite monohydrate)
70. Graeserite (IMA1996-010) 4.JB.55 [417] [418] [no]
    (Fe³⁺₄Ti₃As³⁺O₁₃(OH))
71. Graftonite 8.AB.20
    1. Graftonite (Y: 1900) 8.AB.20 [419] [420] [421]
       (IUPAC: iron(II) diiron(II) diphosphate)
    2. Graftonite-(Ca) (IMA2017-048) 8.AB.20 [422] [no] [no]
       (IUPAC: calcium diiron(II) diphosphate)
    3. Graftonite-(Mn) (IMA2017-050) 8.AB.20 [423] [no] [no]
       (IUPAC: manganese diiron(II) diphosphate)
72. Gramaccioliite-(Y) (crichtonite: IMA2001-034) 4.CC.40 [424] [425] [426]
73. Grammatikopoulosite (phosphide: IMA2019-090) 1.0 [427] [no] [no]
    (IUPAC: nickel vanadium phosphide)
74. Grandaite (brackebuschite: IMA2013-059) 8.B?. [428] [no] [429]
    (IUPAC: distrontium aluminium hydro diarsenate)
75. Grandidierite (Y: 1902) 9.AJ.05 [430] [431] [432]
    (MgAl₃O₂(BO₃)(SiO₄))
76. Grandreefite (IMA1988-016) 7.BD.45 [433] [434] [435]
    (IUPAC: dilead difluoro sulfate)
77. Grandviewite (IMA2007-004) 7.BB.60 [436] [437] [no]
    (Cu₃Al₉(SO₄)₂(OH)₂₉)
78. Grantsite (hewettite: IMA1967 s.p., 1964) 4.HG.55 [438] [439] [440]
79. Graphite (Y: 1789) 1.CB.05a [441] [442] [443]
80. Graţianite (berthierite: IMA2013-076) 2.0 [444] [no] [no]
    (IUPAC: manganese dibismuth tetrasulfide)
81. Gratonite (Y: 1940) 2.JB.55 [445] [446] [447]
    (IUPAC: nonalead tetrarsenide pentadecasulfide)
82. Grattarolaite (IMA1995-037) 8.BE.10 [448] [449] [450]
    (IUPAC: triiron(III) trioxophosphate)
83. Graulichite-(Ce) (alunite, crandallite: IMA2002-001) 8.BL.13 [451] [452] [no]
    (IUPAC: cerium triiron(III) hexahydro diarsenate)
84. Gravegliaite (gravegliaite: IMA1990-020) 4.JE.05 [453] [454] [455]
    (IUPAC: manganese(II) sulfite trihydrate)
85. Grayite (rhabdophane: 1957) 8.CJ.45 [456] [457] [458]
    (IUPAC: thorium phosphate monohydrate)
86. Grechishchevite (IMA1988-027) 2.FC.15c [459] [460] [461]
    (Hg₃S₂BrCl_0.5I_0.5)
87. Greenalite (serpentine: 1903) 9.ED.15 [462] [463] [464]
88. Greenlizardite (IMA2017-001) 7.E?. [465] [no] [no]
    ((NH₄)Na(UO₂)₂(SO₄)₂(OH)₂·4H₂O)
89. Greenockite (wurtzite: 1840) 2.CB.45 [466] [467] [468]
    (IUPAC: cadmium sulfide)
90. Greenwoodite (IMA2010-007) 9.A?. [469] [no] [470]
91. Gregoryite (IMA1981-045) 5.AA.10 [471] [472] [473]
    (IUPAC: disodium carbonate)
92. Greifensteinite (roscherite: IMA2001-044) 8.DA.10 [474] [475] [476]
    (Ca₂Be₄Fe²⁺₅(PO₄)₆(OH)₄·6H₂O)
93. Greigite (spinel, linnaeite: IMA1963-007) 2.DA.05 [477] [478] [479]
    (IUPAC: iron(II) diiron(III) tetrasulfide)
94. Grenmarite (seidozerite, rinkite: IMA2003-024) 9.BE.25 [480] [481] [no]
    (Na₂Zr₂Na₂MnZr(Si₂O₇)₂O₂F₂)
95. Grguricite (dresserite: IMA2019-123) 5.0 [482] [no] [no]
    (IUPAC: calcium dichromium tetrahydro dicarbonate tetrahydrate)
96. Griceite (halite, rocksalt: IMA1986-043) 3.AA.20 [483] [484] [485]
    (IUPAC: lithium fluoride)
97. Grigorievite (howardevansite: IMA2012-047) 8.0 [486] [no] [487]
    (IUPAC: tricopper diiron(III) dialuminium hexavanadate)
98. Grimaldiite ("O(OH)" group: IMA1967-036) 4.FE.20 [488] [489] [490]
    (IUPAC: hydrochromium oxide)
99. Grimselite (IMA1971-040) 5.ED.35 [491] [492] [493]
    (IUPAC: tripotassium sodium uranyl tricarbonate monohydrate)
100. Griphite (Y: 1891) 8.BF.15 [494] [495] [496]
101. Grischunite (wicksite: IMA1981-028) 8.CF.05 [497] [498] [499]
102. Groatite (alluaudite: IMA2008-054) 8.AC.10 [500] [no] [501]
     (☐NaCaMn₂(PO₄)(HPO₄)₂)
103. Grokhovskyite (IMA2019-065) 2.0 [502] [no] [no]
     (IUPAC: copper chromium disulfide)
104. Grootfonteinite (IMA2015-051) 5.0 [503] [no] [no]
     (IUPAC: trilead oxodicarbonate)
105. Grossite (IMA1993-052) 4.CC.15 [504] [505] [506]
     (IUPAC: calcium tetraluminium heptaoxide)
106. Grossmanite (pyroxene: IMA2008-042a) 9.DA.15 [507] [508] [no]
107. Grossular (garnet, garnet: IMA1962 s.p., 1811) 9.AD.25 [509] [510] [511]
     (IUPAC: tricalcium dialuminium tri(tetraoxysilicate))
108. Groutite ("O(OH)" group: 1947) 4.FD.10 [512] [513] [514]
     (IUPAC: hydromanganese(III) oxide)
109. Grumantite (IMA1985-029) 9.EH.10 [515] [516] [517]
     (NaSi₂O₄(OH)·H₂O)
110. Grumiplucite (pavonite: IMA1997-021) 2.JA.05b [518] [519] [520]
     (IUPAC: mercury dibismuth tetrasulfide)
111. Grundmannite (chalcostibite: IMA2015-038) 2.0 [521] [no] [no]
     (IUPAC: copper bismuth diselenide)
112. Grunerite [Mg-Fe-Mn-amphibole: IMA2012 s.p., IMA1997 s.p., 1853] 9.DE.05 [522] [523] [524]
113. Gruzdevite (nowackiite: IMA1980-053) 2.GA.30 [525] [526] [527]
     (Cu₆Hg₃Sb₄S₁₂)
114. Guanacoite (IMA2003-021) 8.DD.10 [528] [529] [no]
     (IUPAC: dicopper trimagnesium tetrahydro diarsenate tetrahydrate)
115. Guanajuatite (stibnite: 1858) 2.DB.05 [530] [531] [532]
     (IUPAC: dibismuth triselenide)
116. Guanine (IMA1973-056) 10.CA.30 [533] [534] [535]
117. Guarinoite (guarinoite: IMA1991-005) 7.DD.80 [536] [537] [538]
     (IUPAC: hexazinc decahydro sulfate pentahydrate)
118. Gudmundite (arsenopyrite: 1928) 2.EB.20 [539] [540] [541]
     (IUPAC: iron antimonide sulfide)
119. Guérinite (IMA2007 s.p., 1961) 8.CJ.75 [542] [543] [544]
     (IUPAC: pentacalcium di(hydroxoarsenate) diarsenate nonahydrate)
120. Guettardite (sartorite: IMA1966-018) 2.HC.05a [545] [546] [547]
     (Pb₈(Sb_0.56As_0.44)₁₆S₃₂)
121. Gugiaite (melilite: IMA1983-072) 9.BB.10 [548] [549] [550]
     (IUPAC: dicalcium beryllium heptaoxy disilicate)
122. Guidottiite (serpentine: IMA2009-061) 9.ED.15 [551] [no] [552]
123. Guildite (Y: 1928) 7.DC.30 [553] [554] [555]
     (IUPAC: copper iron(III) hydro disulfate tetrahydrate)
124. Guilleminite (IMA1964-031) 4.JJ.10 [556] [557] [558]
     (IUPAC: barium triuranyl dioxodiselenite trihydrate)
125. Guimarãesite (roscherite: IMA2006-028) 8.DA.10 [559] [560] [no]
     (Ca₂Be₄Zn₅(PO₄)₆(OH)₄·6H₂O)
126. Guite (spinel: IMA2017-080) 4.0 [561] [no] [no]
     (IUPAC: cobalt(II) dicobalt(III) tetraoxide)
127. Gunningite (kieserite: IMA1962 s.p.) 7.CB.05 [562] [563] [564]
     (IUPAC: zinc sulfate monohydrate)
128. Günterblassite (günterblassite: IMA2011-032) 9.0 [565] [no] [no]
129. Gunterite (decavanadate: IMA2011-001) 8.0 [566] [no] [567]
     (Na₄(H₂O)₁₆(H₂V₁₀O₂₈)·6H₂O)
130. Gupeiite (silicide: IMA1983-087) 1.BB.30 [568] [569] [570]
     (IUPAC: triiron silicide)
131. Gurimite (palmierite: IMA2013-032) 8.0 [571] [no] [no]
     (IUPAC: tribarium divanadate)
132. Gustavite (lillianite: IMA1967-048) 2.JB.40a [572] [573] [574]
     (IUPAC: silver lead hexasulfide tribismuthide)
133. Gutkovaite-Mn (labuntsovite: IMA2001-038) 9.CE.30h [575] [576] [no]
134. Guyanaite ("O(OH)" group: IMA1967-034) 4.FD.10 [577] [578] [579]
     (IUPAC: hydrochromium oxide)
135. Gwihabaite (IMA1994-011) 5.NA.15 [580] [581] [582]
     (IUPAC: ammonium nitrate)
136. Gypsum [gypsos (Theophrastus), gypsum (Agricola, G., 1546)] 7.CD.40 [583] [584] [585]
     (IUPAC: calcium sulfate dihydrate)
137. Gyrolite (gyrolite: 1851) 9.EE.30 [586] [587] [588]
138. Gysinite-(Nd) (ancylite: IMA1981-046) 5.DC.05 [589] [590] [591]
     (IUPAC: lead neodymium hydro dicarbonate monohydrate)

2. External Links

• IMA Database of Mineral Properties/ RRUFF Project
• Mindat.org - The Mineral Database
• Webmineral.com
• Mineralatlas.eu minerals F and G