Mineral Identification
PHYSICAL PROPERTIES
POSSIBLE MINERALS
METALLIC
and
SUBMETALLIC
LUSTER
[MORE PROPERTIES]
HEMATITE, Fe2O3
MAGNETITE, Fe3O4
PYRITE, FeS2
NON-
METALLIC
LUSTER
-
BUT NOT
EARTHY
Light
Colored
Harder
than
Glass
Cleavage
[MORE PROPERTIES]
POTASSIUM FELDSPAR, KAlSi3O8
PLAGIOCLASE FELDSPAR,  (Na,Ca)(Al,Si)4O8, Na>Ca
NO
Cleavage
[MORE PROPERTIES]
OLIVINE, (Mg,Fe)2SiO4
QUARTZ, SiO2
GARNET, (Mg,Fe,Ca)3Al2Si3O12
Softer
than
Glass
Cleavage
[MORE PROPERTIES]
CALCITE, CaCO3
DOLOMITE, CaMg(CO3)2
MUSCOVITE, KAl2(AlSi3)O10(OH)2
Dark
Colored
Harder
than
Glass
NO
Cleavage
[MORE PROPERTIES]
GARNET, (Fe,Mg,Ca)3Al2Si3O12
QUARTZ, SiO2
OLIVINE, (Mg,Fe)2SiO4
Cleavage
[MORE PROPERTIES].
HORNBLENDE, NaCa2(Mg,Fe,Al)5(Al,Si)8O22(OH)2
AUGITE, Ca(Mg,Fe)Si2O6
PLAGIOCLASE FELDSPAR, (Ca,Na)(Al,Si)4O8, Ca>Na
EPIDOTE, Ca2FeAl2Si3O12(OH)
GARNET, (Fe,Mg,Ca)3Al2Si3O12
Softer
than
Glass
Cleavage
[MORE PROPERTIES]
BIOTITE, K(Fe,Mg)3AlSi3O10(OH)2
CHLORITE, (Mg,Fe)6Si4O10(OH)8
CALCITE, CaCO3
DOLOMITE, CaMg(CO3)2
EARTHY
Light
Colored
[MORE PROPERTIES]
CALCITE, CaCO3
DOLOMITE, CaMg(CO3)2
Dark
Colored
[MORE PROPERTIES]
HEMATITE, Fe2O3
CALCITE, CaCO3
DOLOMITE, CaMg(CO3)2
 

What is the luster? [METALLIC or SUBMETALLIC] ---[NON-METALLIC but NOT EARTHY] ---[EARTHY]


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