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Astrophyllite
Astrophyllite

Demantoid Garnet
Demantoid Garnet



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Astrophyllite
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Demantoid Garnet
Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.2-3.4
Uneven
Perfect on [001] imperfect on [100]
3
(K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)
 
-
-
-
-9999
-
Imperfect
-9999
Ca3Fe2(SiO4)3