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Dominant species
+More..
Quartz
Feldspar
Garnet
Calcite
Fluorite
Mica
Stilbite
Topaz
Hemimorphite
Babingtonite
Pyrites
Prehnite
Aquamarine
Pyromorphite
Epidote
Sphalerite
Agate
Opal
Chabazite
Rhodochrosite
Laumontite
Limonite
stibnite
Galena
Barite
Tourmaline
Scheelite
Hematite
Chalcopyrite
Wolframite
Bournonite
Cassiterite
Psilomelane
Emerald
Cassiterite
Dolomite
Apophyllite
Helvite
The most popular
Crystal Specimens of Colourless Transpar..
US $193.33
Laumontite and feldspar mineral crystal ..
US $249.83
Limonite Hematite Mineral Specimens Mine..
US $66.33
Fluorescent Topaz Rare Mineral Specimens..
US $28
Gemstone-grade Sphalerite with super-goo..
US $333.17
Coral Calcite and Feldspar Symbiotic Min..
US $33.17
Laumontite and feldspar mineral crystal ..
US $133.17
Home
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Mineral Encyclopedia
>> Mineral datum >> Feldspar
25
Photos
Feldspar
Chemical
Formula
KAlSi3O8-NaAlSi3O8-CaAl2Si2O8
Species
Silicates
Crystal
System
Triclinic
Mohs
Scale
6-6.5
Specific
Gravity
2.55-2.76
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