MINERAL
GROUPS
USING CHEMICAL CLASSIFICATION |
|||
N
S
|
CHEMICAL GROUP | MINERAL | CHEMICAL FORMULA |
elements |
graphite, diamond | C | |
native copper | Cu | ||
oxides | hematite | Fe2O3 | |
magnetite | Fe3O4 | ||
corundum | Al2O3 | ||
sulfides | galena | PbS | |
sphalerite | ZnS | ||
pyrite | FeS2 | ||
sulfates | gypsum | CaSO4 - 2 H2O | |
barite | BaSO4 | ||
halides | halite | NaCl | |
fluorite | CaF2 | ||
carbonates | calcite | CaCO3 | |
dolomite | Ca,Mg(CO3)2 | ||
S
|
olivine | olivine | (Mg,Fe)2 SiO4 |
pyroxenes | augite (pyroxene) | complex silicate | |
amphiboles | hornblende (amphibole) | complex silicate with hydroxyl (water) groups | |
calcium-rich plagioclase felspars | labradorite | NaAlSi3O8 to CaAlSi2O8 | |
sodium-rich plagioclase feldspars | albite | NaAlSi3O8 to CaAlSi2O8 | |
potassium feldspars | microcline, orthoclase | KAlSi3O8 | |
garnets | almandine, pyrope | complex silicate | |
sheet silicates |
muscovite mica | KAl2(AlSi 3O10) (OH) | |
biotite mica | K(Mg,Fe)3 (AlSi 3O10)(OH)2 | ||
talc | Mg3Si4010(OH)2 | ||
silica | quartz, chalcedony | SiO2 |