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Ammoniozippeite

(NH4)2[(UO2)2(SO4)O2]·H2O

Amstallite

CaAl[(Al,Si)4O8(OH)2](OH)2·(H2O,Cl)

Amurselite

(NH4)2(UO2)5(SeO3)3O2(OH)2(H2O)·8H2O

Anandite

BaFe2+3(Si3Fe3+)O10S(OH)

Anapaite

Ca2Fe2+(PO4)2·4H2O

Anastasenkoite

CaFe2+P2O7

Anatolygurbanovite

SrCa2Si3O9

Anatolyite

Na6(Ca,Na)(Mg,Fe3+)3Al(AsO4)6

Ancylite-(Ce)

CeSr(CO3)2(OH)·H2O

Ancylite-(La)

LaSr(CO3)2(OH)·H2O

Andalusite

Al2SiO5

Andersonite

Na2Ca(UO2)(CO3)3·5-6H2O

Andradite

Ca3Fe3+2(SiO4)3

Andreadiniite

CuHgAg7Pb7Sb24S48

Andrémeyerite

BaFe2+2(Si2O7)

Andreybulakhite

Ni(C2O4)·2H2O

Andreyivanovite

FeCrP

Andrianovite

Na12(K,Sr,Ce)3Ca6Mn3Zr3Nb(Si25O73)(O,H2O,OH)5

Anduoite

RuAs2

Andychristyite

PbCu2+Te6+O5(H2O)

Andyrobertsite

KCdCu5(AsO4)4[As(OH)2O2]·2H2O

Angarfite

NaFe3+5(PO4)4(OH)4·4H2O

Angastonite

CaMgAl2(PO4)2(OH)4·7H2O

Ángelaite

Cu2AgPbBiS4

Angelellite

Fe3+4O3(AsO4)2

Anglesite

Pb(SO4)

Anhydrite

Ca(SO4)

Anhydrokainite

KMg(SO4)Cl

Anilite

Cu7S4

Ankerite

Ca(Fe2+,Mg)(CO3)2

Ankinovichite

NiAl4(V5+O3)2(OH)12·2H2O

Annabergite

Ni3(AsO4)2·8H2O

Anningite-(Ce)

(Ca0.5Ce4+0.5)(VO4)

Annite

KFe2+3(AlSi3O10)(OH)2

Anorpiment

As2S3

Anorthite

Ca(Al2Si2O8)

Anorthominasragrite

V4+O(SO4)·5H2O

Ansermetite

Mn2+V5+2O6·4H2O

Antarcticite

CaCl2·6H2O

Anthoinite

AlWO3(OH)3

Anthonyite

Cu(OH)2·3H2O

Anthophyllite

◻Mg2Mg5Si8O22(OH)2

Antigorite

Mg3Si2O5(OH)4

Antimonselite

Sb2Se3

Antipinite

KNa3Cu2(C2O4)4

Antipovite

Cu5O2(PO4)2

Antlerite

Cu2+3(SO4)(OH)4

Antofagastaite

Na2Ca(SO4)2·1.5H2O