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Scordariite

K8(Fe3+0.67◻0.33)[Fe3+3O(SO4)6(H2O)3]2(H2O)11

Scorodite

Fe3+(AsO4)·2H2O

Scorticoite

Mn6(Sb◻)(SiO4)2O3(OH)3

Scorzalite

Fe2+Al2(PO4)2(OH)2

Scotlandite

Pb(S4+O3)

Scottyite

BaCu2Si2O7

Scrutinyite

PbO2

Seaborgite

LiK2Na6(UO2)(SO4)5(SO3OH)(H2O)

Searlesite

NaBSi2O5(OH)2

Sederholmite

NiSe

Rinneite

K3NaFe2+Cl6

Powellite

Ca(MoO4)

Samraite

Ni2P2O7

Scacchite

MnCl2

Sassite

Ti3+2Ti4+O5

Rasmussenite

Ca(C2H3O3)2·3H2O

Rotherkopfite

KNa2(Fe2+2.5Ti1.5)Fe2+(Si4O12)2

Ruthenium

Ru

Talc

Mg3Si4O10(OH)2

Monoclinic H: 1.0

Sulfur

S

Orthorhombic H: 1.5-2.5

Sphalerite

ZnS

Cubic (Isometric) H: 3.5-4.0

Spinel

MgAl2O4

Cubic (Isometric) H: 7.5-8.0

Staurolite

Fe2Al9Si4O23(OH)

Monoclinic H: 7.0-7.5

Sofiite

Zn2(Se4+O3)Cl2

Sellaite

MgF2

Stumpflite

PtSb

Teepleite

Na2B(OH)4Cl

Stibnite

Sb2S3

Solongoite

Ca2B3O4(OH)4Cl

Sperrylite

PtAs2

Stanleyite

V4+O(SO4)·6H2O

Terlinguaite

Hg2OCl

Shandite

Ni3Pb2S2

Simpsonite

Al4Ta3O13(OH)

Sunshuite

FeBi2S4

Sedovite

U4+(MoO4)2

Seeligerite

Pb3(IO4)Cl3

Seelite

Mg(UO2)2(AsO3,AsO4)2·7H2O

Segelerite

CaMgFe3+(PO4)2(OH)·4H2O

Segerstromite

Ca3(As5+O4)2[As3+(OH)3]2

Segnitite

PbFe3+3(AsO4)(AsO3OH)(OH)6

Seidite-(Ce)

Na4(Ce,Sr)2TiSi8O18(O,OH,F)6·5H2O

Seidozerite

Na2Zr2Na2MnTi(Si2O7)2O2F2

Seifertite

SiO2

Seinäjokite

FeSb2

Sejkoraite-(Y)

Y2[(UO2)8O6(SO4)4(OH)2]·26H2O

Sekaninaite

Fe2+2Al4Si5O18

Selenium

Se