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Opal Ethiopia
Opal Ethiopia
☒

Coral
Coral
☒



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Opal Ethiopia
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Coral
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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
-9999
-
None
5.5-6.5
SiO2*nH2O
 
-
-
-
2.60-2.70
Irregular
None
3-4
CaCO 3Ulrich Henn and Claudio C.

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Red Gemstones

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Coral Vs Almandine Garnet

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