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Cryolite
Cryolite

Black Opal
Black Opal



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Cryolite
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Black Opal

Cryolite and Black Opal Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
Soluble
-
2.97
Uneven
None observed
2.5
Na 3AlF 6Ulrich Henn and Claudio C.
 
-
-
-
1.97-2.22
Conchoidal
None
6-6.5
SiO 2 + H 2OUlrich Henn and Claudio C.

Cryolite and Black Opal Chemical Formula

While comparing Cryolite 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 Cryolite and Black Opal chemical formula.

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Cryolite and Black Opal Specific Gravity

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