General Information:
Chemical Formula:
Si
Composition:
(Molecular Weight = 28.09 gm)
Silicon 100.0 % Si
Empirical Formula:
Si
Environment:
Volcanic exhalations and minor inclusions in gold and other mantle-derived rocks. High purity synthetic material used in semiconductor manufacture.
IMA Status:
Approved IMA 1983
Locality:
Tolbachik, Kamchatka.
Name Origin:
From the Latin, silicis = "flint."
Physical Properties:
Cleavage:
None
Color:
iron black or reddish brown.
Diaphaniety:
Opaque
Habits:
Anhedral Grains - Granular minerals without the expression of crystal shapes, Microscopic Crystals - Crystals visible only with microscopes.,
Hardness:
7 - Quartz
Luster:
Metallic
Streak:
black
More details...