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Home
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Mineral Encyclopedia
>> Mineral Photos >> Gehlenite-Gehlenite
Gehlenite
Chemical
Formula
Ca2Al[AlSiO7]
Species
Silicates
Crystal
System
Tetragonal
Mohs
Scale
5-6
Color
yellow-brown, green-grey, colourless
Streak
white, grey-white
Luster
Vitreous, Greasy
Refractive
Index
n = 1.670 n = 1.660
Cleavage
Distinct/Good
Gehlenite1785
Gehlenite1783
Gehlenite1766
Gehlenite1748
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