Types of Rocks, by chemical structure



This is a granite.
Click on image for full size version (50K JPG)
Image from: C. Alexander

Sulfides


FeS2 pyrite

chalcopyrite CuFeS2

FeS troilite

FeS pyrrhotite

FeS mackinawite

FeS amorphous

Fe3S4 greigite

MnS alabanite

Sulfates


CaSO4 anhydrite

CaSO4 . H2O gypsum

SrSO4.celestite

BaSO4 barite

Na2SO4 thenardite

Na2SO4 . 10H2O mirabilite

Oxides


Al2O3 corundum

AlO(OH) boehmite

Al(OH)3 gibbsite

Ca(OH)2 partlandite

Fe(OH)2

Fe3O4 magnetite

Fe2O3 hematite

FeO(OH) goethite

Fe(OH)3 amorphous

MgO periclase

Mg(OH)2 brucite

MnO2 pyrolusite

MnO2 birnesite

Mn2O3 bixbyite

Mn3O4 hausmannite

MnO(OH) manganite

Mn(OH)2 pyrochroite

SiO2 quartz

SiO2 amorphous

Silicates


Fe2SiO4 fayalite

Mg2SiO4 forsterite

FeSiO3 ferrosilite

MgSiO3 enstatite

CaMg(SiO3)2 diopside

Mg7Si8O22(OH)2 anthophyllite

Ca2Mg5Si8O22(OH)2 tremolite

KAlSi3O8 K-feldspar

NaAlSi3O8 albite

CaAl2Si3O8 anorthite

NaAlSi2O6.H2O analcime

analcime laumontite

Al2Si2O5(OH)4 kaolinite

Mg3Si2O5(OH)4 serpentine

Al2Si4O10(OH)2 pyrophyllite

Mg3Si4O10(OH)2 talc

KAl2(AlSi3)O10(OH)2muscovite

KFe3AlSi3O10(OH)2 annite

K(Fe,Mg)2(AlSi3)O10(OH)2 biotite

Ca2(Al,Fe)Al2O(SiO4)(Si2O7)(OH) Epidote



Carbonates


CaCO3 calcite

CaCO3 calcite

MgCO3 magnesite

CaMg(CO3)2 dolomite

FeCO3 siderite

MnCO3 rhodochrosite

SrCO3 strontianite

BaCO3 witherite

NaHCO3 nahcolite

NaHCO3 . NaCO3 . H2O trona


Chlorides


NaCL halite

KCl sylvite


Phosphates


Ca5(PO4)3 apatite

Ca5(PO4)3OH hydroxyapatite

SrSO4 strengite


Types of Rocks, by chemical structure



This is a granite.
Click on image for full size version (50K JPG)
Image from: C. Alexander

Sulfide Rocks


pyrite

chalcopyrite copper iron sulfide

Sulfate Rocks


anhydrite

gypsum

Oxide Rocks


corundum

gibbsite

magnetite

hematite

goethite

periclase

manganite

quartz

Silicate Rocks


fayalite

forsterite

enstatite

diopside

K-feldspar

albite

kaolinite

serpentine

talc

muscovite

biotite

Epidote calcium, aluminum, iron hydrous silicate)



Carbonate Rocks


calcite

magnesite

dolomite


Chloride Rocks


halite


Phosphate Rocks


apatite


Types of Rocks, by chemical structure



This is a granite.
Click on image for full size version (50K JPG)
Image from: C. Alexander

Sulfide Rocks


pyrite

Sulfate Rocks


anhydrite

gypsum

Oxide Rocks


corundum

gibbsite

magnetite

hematite

goethite

periclase

manganite

quartz

Silicate Rocks


fayalite

forsterite

enstatite

diopside

K-feldspar

albite

kaolinite

serpentine

talc

muscovite

biotite



Carbonate Rocks


calcite

magnesite

dolomite


Chloride Rocks


halite


Phosphate Rocks


apatite


Types of Rocks, by chemical structure



This is a granite.
Click on image for full size version (50K JPG)
Image from: C. Alexander

Sulfide Rocks


pyrite

Sulfate Rocks


anhydrite

gypsum

Oxide Rocks


corundum

gibbsite

magnetite

hematite

goethite

periclase

manganite

quartz

Silicate Rocks


fayalite

forsterite

enstatite

diopside

K-feldspar

albite

kaolinite

serpentine

talc

muscovite

biotite



Carbonate Rocks


calcite

magnesite

dolomite


Chloride Rocks


halite


Phosphate Rocks


apatite




Last modified June 19, 2000 by the Windows Team

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