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Demantoid
Demantoid
☒

Spodumene
Spodumene
☒



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Demantoid
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Spodumene
Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.77-3.95
-
Imperfect
6.5
Ca 3Fe 2(SiO 4) 3Ulrich Henn and Claudio C.
 
Brittle
insoluble
-
3.15-3.21
Uneven, Subconchoidal
Perfect prismatic, two directions {110} ∧ {1 1 0} at 87°
6-7
LiAlSi2O6