Gabrielite

Gabrielit

Tl₂AgCu₂As₃S₇

triclinic

Gabrielsonite

Gabrielsonit

PbFe²⁺(AsO₄)(OH)

orthorhombic

Gadolinite-(Ce)

Gadolinit-(Ce)

(Ce, La, Nd, Y)₂Fe²⁺Be₂Si₂O₁₀

monoclinic

Gadolinite-(Y)

Gadolinit-(Y)

Y₂Fe²⁺Be₂Si₂O₁₀

monoclinic

Gagarinite-(Y)

Gagarinit-(Y)

NaCaY(F, Cl)₆

hexagonal

Gageite

Gageit

(Mn²⁺, Mg, Zn)₄₂Si₁₆O₅₄(OH)₄₀

monoclinic, triclinic

Gahnite

Gahnit

ZnAl₂O₄

cubic

Gaidonnayite

Gaidonnayit

Na₂ZrSi₃O₉ • 2H₂O

orthorhombic

Gainesite

Gainesit

Na₂(Be, Li)(Zr, Zn)₂(PO₄)₄ • 1-2H₂O

tetragonal

Gaitite

Gaitit

Ca₂Zn(AsO₄)₂ • 2H₂O

triclinic

Galaxite

Galaxit

(Mn²⁺, Fe²⁺, Mg)(Al, Fe³⁺)₂O₄

cubic

Galeite

Galeit

Na₁₅(SO₄)₅F₄Cl

trigonal

Galena

Galenit

PbS

cubic

Galenobismutite

Galenobizmutit

PbBi₂S₄

orthorhombic

Galgenbergite-(Ce)

Galgenbergit-(Ce)

Ca(Ce, La, Nd)₂(CO₃)₄ • H₂O

triclinic

Galileiite

Galileiit

Na(Fe²⁺, Mn²⁺)₄(PO₄)₃

trigonal

Galkhaite

Galhait

(Cs, Tl)(Hg, Cu, Zn)₆(As, Sb)₄S₁₂

cubic

Gallite

Gallit

CuGaS₂

tetragonal

Gallobeudantite

Gallobeudantit

PbGa₃(AsO₄, SO₄)₂(OH)₆

trigonal

Gamagarite

Gamagarit

Ba₂(Fe³⁺, Mn³⁺)(VO₄)₂(OH)

monoclinic

Gananite

Gananit

BiF₃

cubic

Ganomalite

Ganomalit

Pb₉Ca₅Mn²⁺Si₉O₃₃

trigonal

Ganophyllite

Ganofillit

(K, Na)₆(Mn, Al, Mg)₂₄(Si, Al)₄₀O₉₆ (OH)₁₆ • 21H₂O

monoclinic

Ganterite

Ganterit

[Ba_0.5(Na, K)_0.5]Al₂(Si_2.5Al_1.5O₁₀)(OH)₂

monoclinic

Gaotaiite

Gaotaiit

Ir₃Te₈

cubic

Garavellite

Garavellit

FeSbBiS₄

orthorhombic

Garrelsite

Garrelsit

Ba₃NaSi₂B₇O₁₆(OH)₄

monoclinic

Garronite

Garronit

Na₂Ca₅Al₁₂Si₂₀O₆₄ • 27H₂O

tetragonal, orthorhombic

Gartrellite

Gartrellit

PbCu(Fe³⁺, Cu)(AsO₄)₂(OH, H₂O)₂

triclinic

Garyansellite

Garyansellit

(Mg, Fe³⁺)₃(PO₄)₂(OH, O) • 1.5H₂O

orthorhombic

Gasparite-(Ce)

Gasparit-(Ce)

(Ce, La, Nd)AsO₄

monoclinic

Gaspéite

Gaspéit

(Ni, Mg, Fe²⁺)CO₃

trigonal

Gatehouseite

Gatehouseit

Mn²⁺₅(PO₄)₂(OH)₄

orthorhombic

Gatelite-(Ce)

Gatelit-(Ce)

CaREE₃Al₂(Al, Mg)(Mg, Fe, Al)(Si₂O₇) (SiO₄)₃(O, F)(OH, O)₂

monoclinic

Gatumbaite

Gatumbait

CaAl₂(PO₄)₂(OH)₂ • H₂O

monoclinic

Gaudefroyite

Gaudefroyit

Ca₄Mn³⁺_3-x(BO₃)₃(CO₃)(O, OH)₃

hexagonal

Gaultite

Gaultit

Na₄Zn₂Si₇O₁₈ • 5H₂O

orthorhombic

Gaylussite

Gaylussit

Na₂Ca(CO₃)₂ • 5H₂O

monoclinic

Gearksutite

Gearksutit

CaAl(OH)F₄ • H₂O

monoclinic (?)

Gebhardite

Gebhardit

Pb₈(As³⁺₂O₅)₂OCl₆

monoclinic

Gèdrite

Gèdrit

(Mg, Fe²⁺)₂[(Mg, Fe²⁺)₃Al₂](Si₆Al₂)O₂₂ (OH)₂

orthorhombic

Geerite

Geerit

Cu₈S₅

trigonal

Geffroyite

Geffroyit

(Ag, Cu, Fe)₉(Se, S)₈

cubic

Gehlenite

Gehlenit

Ca₂Al(AlSi)O₇

tetragonal

Geigerite

Geigerit

Mn²⁺₅(AsO₄)₂(AsO₃OH)₂ • 10H₂O

triclinic

Geikielite

Geikielit

MgTiO₃

trigonal

Geminite

Geminit

Cu(AsO₃OH) • H₂O

triclinic

Genkinite

Genkinit

(Pt, Pd)₄Sb₃

tetragonal

Genthelvite

Genthelvin

Zn₄Be₃(SiO₄)₃S

cubic

Geocronite

Geokronit

Pb₁₄(Sb, As)₆S₂₃

monoclinic

Georgbokiite

Georgbokiit

Cu₅O₂(SeO₃)₂Cl₂

monoclinic

Georgechaoite

Georgechaoit

KNaZrSi₃O₉ • 2H₂O

orthorhombic

Georgeericksenite

Georgeericksenit

Na₆CaMg(IO₃)₆(CrO₄)₂ • 12H₂O

monoclinic

Georgeite

Georgeit

Cu²⁺₅(CO₃)₃(OH)₄ • 6H₂O

amorphous

Georgiadèsite

Georgiadèsit

Pb₈(AsO₄)₂OCl₇(OH)

monoclinic

Gerasimovskite

Geraszimovszkit

(Mn²⁺, Ca)(Nb, Ti)₅O₁₂ • 9H₂O (?)

amorphous

Gerdtremmelite

Gerdtremmelit

(Zn, Fe²⁺)(Al, Fe³⁺)₂(AsO₄)(OH)₅

triclinic

Gerenite-(Y)

Gerenit-(Y)

(Ca, Na)₂(Y, REE)₃Si₆O₁₈ • 2H₂O

triclinic

Gerhardtite

Gerhardtit

Cu²⁺₂(NO₃)(OH)₃

orthorhombic

Germanite

Germanit

Cu₂₆Fe₄Ge₄S₃₂

cubic

Germanocolusite

Germanocolusit

Cu₂₆V₂(Ge, As)₆S₃₂

cubic

Gersdorffite

Gersdorffit

NiAsS

cubic

Gerstleyite

Gerstleyit

Na₂(Sb, As)₈S₁₃ • 2H₂O

monoclinic

Gerstmannite

Gerstmannit

(Mg, Mn²⁺)₂ZnSiO₄(OH)₂

orthorhombic

Getchellite

Getchellit

AsSbS₃

monoclinic

Geversite

Geversit

PtSb₂

cubic

Gianellaite

Gianellait

Hg₄(SO₄)N₂

cubic

Gibbsite

Gibbsit

Al(OH)₃

monoclinic

Giessenite

Giessenit

Pb₁₃(Cu, Ag)(Bi, Sb)₉S₂₈ (?)

monoclinic

Gilalite

Gilalit

Cu₅Si₆O₁₇ • 7H₂O

monoclinic (?)

Gillespite

Gillespit

BaFe²⁺Si₄O₁₀

tetragonal

Gillulyite

Gillulyit

Tl₂(As, Sb)₈S₁₃

monoclinic

Gilmarite

Gilmarit

Cu₃(AsO₄)(OH)₃

triclinic

Giniite

Giniit

Fe²⁺Fe³⁺₄(PO₄)₄(OH)₂ • 2H₂O

monoclinic

Ginorite

Ginorit

Ca₂B₁₄O₂₃ • 8H₂O

monoclinic

Giorgiosite

Giorgiosit

Mg₅(CO₃)₄(OH)₂ • 5H₂O (?)

?

Giraudite

Giraudit

(Cu, Zn, Ag)₁₂(As, Sb)₄(Se, S)₁₃

cubic

Girdite

Girdit

Pb₃H₂(Te⁴⁺O₃)(Te⁶⁺O₆)

monoclinic

Girvasite

Girvaszit

NaCa₂Mg₃(PO₄)₂[PO₂(OH)₂](CO₃) (OH)₂ • 4H₂O

monoclinic

Gismondine

Gismondin

Ca₂Al₄Si₄O₁₆ • 9H₂O

monoclinic

Gittinsite

Gittinsit

CaZrSi₂O₇

monoclinic

Giuseppettite

Giuseppettit

(Na, K, Ca)_7-8(Si, Al)₁₂O₂₄(SO₄, Cl)_1-2

hexagonal

Gjerdingenite-Fe

Gjerdingenit-Fe

K₂[(H₂O)₂(Fe, Mn)](Nb, Ti)₄(Si₄O₁₂)₂(OH, O)₄ • 4H₂O

monoclinic

Gjerdingenite-Mn

Gjerdingenit-Mn

(K, Na)₂(Mn, Fe)(Nb, Ti)₄(Si₄O₁₂)₂(O, OH)₄ • 6H₂O

monoclinic

Gladite

Gladit

PbCuBi₅S₉

orthorhombic

Gladiusite

Gladiuszit

Fe³⁺₂(Fe²⁺, Mg)₄(PO₄)(OH)₁₁(H₂O)

monoclinic

Glagolevite

Glagoljevit

NaMg₆Si₃AlO₁₀(OH, O)₈ • H₂O

triclinic

Glauberite

Glauberit

Na₂Ca(SO₄)₂

monoclinic

Glaucocerinite

Glaukocerinit

(Zn, Cu²⁺)₁₀Al₆(SO₄)₃(OH)₃₂ • 18H₂O

hexagonal

Glaucochroite

Glaukokroit

CaMn²⁺SiO₄

orthorhombic

Glaucodot

Glaukodot

(Co, Fe)AsS

orthorhombic

Glauconite

Glaukonit

K_0.6-0.85(Fe³⁺, Al, Mg)₂(Si, Al)₄O₁₀(OH)₂

monoclinic

Glaucophane

Glaukofán

Na₂[(Mg, Fe²⁺)₃Al₂]Si₈O₂₂(OH)₂

monoclinic

Glaukosphaerite

Glaukoszferit

(Cu, Ni)₂(CO₃)(OH)₂

monoclinic

Glucine

Glucin

CaBe₄(PO₄)₂(OH)₄ • 0.5H₂O

?

Glushinskite

Glusinszkit

Mg(C₂O₄) • 2H₂O

monoclinic

Gmelinite-Ca

Gmelinit-Ca

(Ca, Na₂)Al₂Si₄O₁₂ • 6H₂O

hexagonal

Gmelinite-K

Gmelinit-K

(K₂, Ca, Na₂)Al₂Si₄O₁₂ • 6H₂O

hexagonal

Gmelinite-Na

Gmelinit-Na

(Na₂, Ca)Al₂Si₄O₁₂ • 6H₂O

hexagonal

Gobbinsite

Gobbinsit

Na₅Al₅Si₁₁O₃₂ • 12H₂O

orthorhombic

Godlevskite

Godlevszkit

(Ni, Fe)₉S₈

orthorhombic

Godovikovite

Godovikovit

(NH₄)(Al, Fe³⁺)(SO₄)₂

hexagonal

Goedkenite

Goedkenit

(Sr, Ca)₂Al(PO₄)₂(OH)

monoclinic

Goethite

Goethit

a-Fe³⁺O(OH)

orthorhombic

Gold

Arany

Au

cubic

Goldfieldite

Goldfieldit

Cu₁₂(Te, Sb, As)₄S₁₃

cubic

Goldichite

Goldichit

KFe³⁺(SO₄)₂ • 4H₂O

monoclinic

Goldmanite

Goldmanit

Ca₃(V³⁺, Al, Fe³⁺)₂(SiO₄)₃

cubic

Goldquarryite

Goldquarryit

CuCd₂Al₃(PO₄)₄F₂(H₂O)₁₀(H₂O)₂

triclinic

Gonnardite

Gonnardit

Na₂CaAl₄Si₆O₂₀ • 7H₂O

tetragonal

Gonyerite

Gonyerit

(Mn²⁺, Mg)₅Fe³⁺(Si₃Fe³⁺)O₁₀(OH)₈

orthorhombic

Goosecreekite

Goosecreekit

CaAl₂Si₆O₁₆ • 5H₂O

monoclinic

Gorceixite

Gorceixit

BaAl₃(PO₄)(PO₃OH)(OH)₆

monoclinic

Gordaite

Gordait

NaZn₄(SO₄)(OH)₆Cl • 6H₂O

trigonal

Gordonite

Gordonit

MgAl₂(PO₄)₂(OH)₂ • 8H₂O

triclinic

Görgeyite

Görgeyit

K₂Ca₅(SO₄)₆ • H₂O

monoclinic

Gormanite

Gormanit

Fe²⁺₃Al₄(PO₄)₄(OH)₆ • 2H₂O

triclinic

Gortdrumite

Gortdrumit

(Cu, Fe)₆Hg₂S₅

orthorhombic

Goslarite

Goslarit

ZnSO₄ • 7H₂O

orthorhombic

Gottardiite

Gottardiit

Na₃Mg₃Ca₅Al₁₉Si₁₁₇O₂₇₂ • 93H₂O

orthorhombic

Gottlobite

Gottlobit

CaMg(VO₄, AsO₄)(OH)

orthorhombic

Götzenite

Götzenit

Na₂Ca₅Ti(Si₂O₇)₂F₄

triclinic

Goudeyite

Goudeyit

(Al, Y)Cu₆(AsO₄)₃(OH)₆ • 3H₂O

hexagonal

Gowerite

Gowerit

CaB₆O₁₀ • 5H₂O

monoclinic

Goyazite

Goyazit

SrAl₃(PO₄)(PO₃OH)(OH)₆

trigonal

Graemite

Graemit

Cu²⁺Te⁴⁺O₃ • H₂O

orthorhombic

Graftonite

Graftonit

(Fe²⁺, Mn²⁺, Ca)₃(PO₄)₂

monoclinic

Gramaccioliite-(Y)

Gramaccioliit-(Y)

(Pb, Sr)(Y, Mn)(Ti, Fe³⁺)₁₈Fe³⁺₂O₃₈

trigonal

Grandidierite

Grandidierit

(Mg, Fe²⁺)Al₃(BO₃)(SiO₄)O₂

orthorhombic

Grandreefite

Grandreefit

Pb₂(SO₄)F₂

monoclinic

Grantsite

Grantsit

(Na, Ca)_x(V⁵⁺, V⁴⁺)₆O₁₆ • 4H₂O (x » 2.3)

monoclinic

Graphite

Grafit

C

hexagonal, trigonal

Gratonite

Gratonit

Pb₉As₄S₁₅

trigonal

Grattarolaite

Grattarolait

Fe³⁺PO₇

trigonal

Graulichite-(Ce)

Graulichit-(Ce)

CeFe₃(AsO₄)₂(OH)₆

trigonal

Gravegliaite

Gravegliait

Mn²⁺(SO₃) • 3H₂O

orthorhombic

Grayite

Grayit

ThPO₄ • H₂O

hexagonal

Grechishchevite

Grecsiscsevit

Hg₃S₂(Br, Cl, I)₂

tetragonal

Greenalite

Greenalit

(Fe²⁺, Fe³⁺)_2-3Si₂O₅(OH)₄

monoclinic

Greenockite

Greenockit

CdS

hexagonal

Gregoryite

Gregoryit

(Na₂, K₂, Ca)CO₃

?

Greifensteinite

Greifensteinit

Ca₂Be₄(Fe²⁺, Mn)₅(PO₄)₆(OH)₄ • 6H₂O

monoclinic

Greigite

Greigit

Fe²⁺Fe³⁺₂S₄

cubic

Grenmarite

Grenmarit

(Zr, Mn)₂(Zr, Ti)(Mn, Na)(Na, Ca)₄(Si₂O₇)₂(O, F)₄

monoclinic

Griceite

Griceit

LiF

cubic

Grimaldiite

Grimaldiit

Cr³⁺O(OH)

trigonal

Grimselite

Grimselit

K₃Na(UO₂)(CO₃)₃ • H₂O

hexagonal

Griphite

Grifit

Ca(Mn²⁺, Na, Li)₆Fe²⁺Al₂(PO₄)₆(F, OH)₂

cubic

Grischunite

Grischunit

NaCa₂Mn²⁺₅Fe³⁺(AsO₄)₆ • 2H₂O

orthorhombic

Grossite

Grossit

CaAl₄O₇

monoclinic

Grossular

Grosszulár

Ca₃Al₂(SiO₄)₃

cubic

Groutite

Groutit

Mn³⁺O(OH)

orthorhombic

Grumantite

Grumantit

NaHSi₂O₅ • H₂O

orthorhombic

Grunerite

Grunerit

Fe²⁺₂(Fe²⁺, Mg)₅Si₈O₂₂(OH)₂

monoclinic

Gruzdevite

Gruzgyevit

Cu₆Hg₃Sb₄S₁₂

trigonal

Guanajuatite

Guanajuatit

Bi₂Se₃

orthorhombic

Guanine

Guanin

C₅H₃(NH₂)N₄O

monoclinic

Guarinoite

Guarinoit

(Zn, Co, Ni)₆(SO₄)(OH, Cl)₁₀ • 5H₂O

hexagonal

Gudmundite

Gudmundit

FeSbS

monoclinic

Guérinite

Guérinit

Ca₅(AsO₄)₂(AsO₃OH)₂ • 9H₂O

monoclinic

Guettardite

Guettardit

Pb(Sb, As)₂S₄

monoclinic

Gugiaite

Gugiait

Ca₂BeSi₂O₇

tetragonal

Guildite

Guildit

CuFe³⁺(SO₄)₂(OH) • 4H₂O

monoclinic or triclinic

Guilleminite

Guilleminit

Ba(UO₂)₃(SeO₃)₂O₂ • 3H₂O

orthorhombic

Gunningite

Gunningit

(Zn, Mn²⁺)SO₄ • H₂O

monoclinic

Gupeiite

Gupeiit

Fe₃Si

cubic

Gustavite

Gustavit

PbAgBi₃S₆ (?)

orthorhombic

Gutkovaite-Mn

Gutkovait-Mn

Ca₂K₄Mn₂Ti₈(Si₄O₁₂)₄O₈ • nH₂O

monoclinic

Guyanaite

Guyanait

Cr³⁺O(OH)

orthorhombic

Gypsum

Gipsz

CaSO₄ • 2H₂O

monoclinic

Gyrolite

Girolit

NaCa₁₆(Si₂₃Al)O₆₀(OH)₈ • 14H₂O

triclinic

Gysinite-(Nd)

Gysinit-(Nd)

Pb(Nd, La)(CO₃)₂(OH) • H₂O

orthorhombic