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Black Opal
Black Opal

Axinite
Axinite



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Black Opal
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Axinite

Black Opal and Axinite 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.
 
-
-
-
3.26-3.36
Conchoidal
Good on {100}
6.5-7
(Ca,Fe,Mn,Mg) 3Al 2BSi 4O 15(OH)Walter Schumann , Gemstones of the world (2001) More from other references

Black Opal and Axinite Chemical Formula

While comparing Black Opal and Axinite 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 Axinite chemical formula.

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Black Opal and Axinite Specific Gravity

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