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Precious Opal
Precious Opal

Austinite
Austinite



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Precious Opal
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Austinite

Precious Opal and Austinite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
1.98-2.25
Conchoidal
None
5-6.5
SiO 2 · nH 2OGemdat.org , Management Team (2012)
 
Brittle
Easily soluble in cold dilute HCl
-
4.12
Uneven
Good in two directions parallel to the prism faces {110}
4-4.5
CaZn(AsO4)(OH)

Precious Opal and Austinite Chemical Formula

While comparing Precious Opal and Austinite 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 Precious Opal and Austinite chemical formula.

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Precious Opal and Austinite Specific Gravity

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