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Demantoid Garnet
Demantoid Garnet
☒

Prase Opal
Prase Opal
☒



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Demantoid Garnet
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Prase Opal
Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
-9999
-
Imperfect
-9999
Ca3Fe2(SiO4)3
 
-
-
-
1.98-2.25
Conchoidal
None
5-6.5
SiO 2 + H 2OUlrich Henn and Claudio C.