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White Opal
White Opal

Andradite
Andradite



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White Opal
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Andradite

White Opal and Andradite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
1.98-2.50
Conchoidal
None
5.5-6.5
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
 
Brittle
-
-
3.70-4.10
Conchoidal, Uneven
none
6.5-7
Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

White Opal and Andradite Chemical Formula

While comparing White Opal and Andradite 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 White Opal and Andradite chemical formula.

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White Opal and Andradite Specific Gravity

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