Minerals

Apachite

Cu2+9Si10O29·11H2O

Apatite

Ca5(PO4)3(F,Cl,OH)

Hexagonal H: 5.0

Apexite

NaMg(PO4)·9H2O

Aphthitalite

K3Na(SO4)2

Apjohnite

Mn2+Al2(SO4)4·22H2O

Aplowite

Co(SO4)·4H2O

Apuanite

(Fe2+Fe3+2)(Fe3+2Sb3+4)O12S

Aqualite

(H3O)8(Na,K,Sr)5Ca6Zr3Si26O66(OH)9Cl

Aradite

BaCa6[(SiO4)(VO4)](VO4)2F

Aragonite

CaCO3

Orthorhombic H: 3.5-4.0

Arakiite

ZnMn2+12Fe3+2(As3+O3)(As5+O4)2(OH)23

Aramayoite

Ag3Sb2(Bi,Sb)S6

Arangasite

Al2(SO4)(PO4)F·9H2O

Arapovite

(K1-x◻x)(Ca,Na)2U4+Si8O20 [x ≈ 0.5]

Aravaipaite

Pb3AlF9·H2O

Aravaite

Ba2Ca18(SiO4)6(PO4)3(CO3)F3O

Arcanite

K2(SO4)

Archerite

H2K(PO4)

Arctite

(Na5Ca)Ca6Ba(PO4)6F3

Arcubisite

Ag6CuBiS4

Ardaite

Pb17Sb15S35Cl9

Ardealite

Ca2(PO3OH)(SO4)·4H2O

Ardennite-(As)

Mn2+4Al4(AlMg)(AsO4)(SiO4)2(Si3O10)(OH)6

Ardennite-(V)

Mn2+4Al4(AlMg)(VO4)(SiO4)2(Si3O10)(OH)6

Arfvedsonite

NaNa2(Fe2+4Fe3+)Si8O22(OH)2

Argandite

Mn7(VO4)2(OH)8

Argentobaumhauerite

Ag1.5Pb22As33.5S72

Argentodufrénoysite

Ag3Pb26As35S80

Argentojarosite

AgFe3+3(SO4)2(OH)6

Argentoliveingite

AgxPb40-2xAs48+xS112 (3 < x < 4)

Argentopearceite

[Ag9AgS4][Ag6As2S7]

Argentopentlandite

Ag(Fe,Ni)8S8

Argentopolybasite

[Ag9AgS4][Ag6Sb2S7]

Argentopyrite

AgFe2S3

Argentotennantite-(Fe)

Ag6(Cu4Fe2)As4S13

Argentotennantite-(Zn)

Ag6(Cu4Zn2)As4S13

Argentotetrahedrite-(Cd)

Ag6(Cu4Cd2)Sb4S13

Argentotetrahedrite-(Fe)

Ag6(Cu4Fe2)Sb4S13

Argentotetrahedrite-(Hg)

Ag6(Cu4Hg2)Sb4S13

Argentotetrahedrite-(Zn)

Ag6(Cu4Zn2)Sb4S13

Argesite

(NH4)7Bi3Cl16

Argutite

GeO2

Argyrodite

Ag8GeS6

Arhbarite

Cu2Mg(AsO4)(OH)3

Ariegilatite

BaCa12(SiO4)4(PO4)2F2O

Arisite-(Ce)

NaCe2(CO3)2[F2x(CO3)1-x]F

Arisite-(La)

NaLa2(CO3)2[F2x(CO3)1-x]F

Aristarainite

Na2Mg[B6O8(OH)4]2·4H2O