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Goshenite
Goshenite
☒

Common Opal
Common Opal
☒



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Goshenite
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Common Opal
Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.60-2.90
Conchoidal
3,1 basal
7.5-8
Be3Al2SiO6
 
-
-
-
1.98-2.50
Conchoidal
None
5.5-6.5
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)