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Black Opal
Black Opal

Williamsite
Williamsite



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Black Opal
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Williamsite

Black Opal and Williamsite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
1.97-2.22
Conchoidal
None
6-6.5
SiO 2 + H 2OUlrich Henn and Claudio C.
 
-
-
-
2.51-2.63
Conchoidal
Perfect
4
(Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)

Black Opal and Williamsite Chemical Formula

While comparing Black Opal and Williamsite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Black Opal and Williamsite chemical formula.

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Black Opal and Williamsite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Black Opal and Williamsite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Black Opal Vs Williamsite during the identification of gemstone. Specific gravity of Black Opal is whereas that of Williamsite is .