EENS 212
FORMAULAE OF COMMON MINERALS

 

ORTHOSILICATES (NESOSILICATES)

SHEET SILICATES (PHYLLOSILICATES)

Forsterite Mg2SiO4 Muscovite KAl3Si3O10(OH)2
Fayalite Fe2SiO4 Biotite K(Mg,Fe)3AlSi3O10(OH)2
Zircon ZrSiO4 Talc Mg3Si4O10(OH)2
Sphene CaTiSiO4 Chlorite (Mg,Fe,Al)6(Si,Al)4O10(OH)8
Pyrope Mg3Al2Si3O12 Serpentine Mg3Si2O5(OH)4
Almandine Fe3Al2Si3O12 Kaolinite Al2Si2O5(OH)4
Grossularite Ca3Al2Si3O12    
Sillimanite Al2SiO5

FRAMEWORK SILICATES (TECTOSILICATES)

Kyanite Al2SiO5 Anorthite CaAl2Si2O8
Andalusite Al2SiO5 Albite NaAlSi3O8
Staurolite (Fe,Mg)2Al9Si4O22(OH)2 Sanidine KAlSi3O8
Topaz Al2SiO4(OH)2 Orthoclase KAlSi3O8

SOROSILICATES

 Quartz  SiO2

Lawsonite

CaAl2Si2O7(OH)2.H2O Cristobalite SiO2
Epidote Ca2Fe+3Al2Si3O12(OH) Tridymite SiO2
Clinozoisite Ca2Al3Si3O12(OH) Nepheline NaAlSiO4
    Kalsilite KAlSiO4

CYCLOSILICATES

 Leucite KAlSi2O6
Beryl Be3Al2Si6O18    
Cordierite Al4(Mg,Fe)2Si5O18

OXIDES

    Periclase MgO

CHAIN SILICATES (INOSILICATES)

 Corundum Al2O3
Enstatite MgSiO3 Hematite Fe2O3
Ferrosilite FeSiO3 Magnetite Fe3O4
Hypersthene (Mg,Fe)SiO3 Ilmenite FeTiO3
Diopside CaMgSi2O6

Rutile   

TiO2
Hedenbergite  CaFeSi2O6 Spinel MgAl2O4
Acmite NaFe+3Si2O6    
Jadeite NaAlSi2O6

HYDROXIDES

Wollastonite CaSiO3 Brucite Mg(OH)2
Tremolite Ca2Mg5Si8O22(OH)2 Gibbsite Al(OH)3
Actinolite

Ca2Fe5Si8O22(OH)2

 Goethite FeO.OH
Hornblende (Na,K)0-1Ca2(Mg,Fe,Al)5Si6-7Al2-1O22(OH,F)2  
       
       
       

SULFIDES

CARBONATES

Pyrite FeS2 Calcite CaCO3
Chalcopyrite CuFeS2 Siderite FeCO3
Sphalerite ZnS Magnesite MgCO3
Galena  PbS Dolomite CaMg(CO3)2
Cinnabar HgS    
Covelite CuS

PHOSPHATES

Bornite Cu5FeS4 Apatite Ca5(PO4)3(OH,F,CL)
Molybdenite MoS2    
   

HALIDES

SULFATES

 Fluorite CaF2
Anhydrite CaSO4 Halite NaCl
Barite BaSO4 Sylvite KCl
Gypsum CaSO4.2H2O    
Anhydrite CaSO4    

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