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Hibschite
Hibschite

Black Opal
Black Opal



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Hibschite
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Black Opal

Hibschite and Black Opal Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.05-3.08
Uneven, Irregular, Conchoidal
None
6.5
Ca 3Al 2(SiO 4) 3-x(OH) 4x (x=0.2 to 1.5)Anthony et al , Handbook of mineralogy (2001)
 
-
-
-
1.97-2.22
Conchoidal
None
6-6.5
SiO 2 + H 2OUlrich Henn and Claudio C.

Hibschite and Black Opal Chemical Formula

While comparing Hibschite and Black Opal 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 Hibschite and Black Opal chemical formula.

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Hibschite and Black Opal Specific Gravity

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