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White Opal and Prehnite Physical Properties


Prehnite and White Opal Physical Properties


Physical Properties

Tenacity
Not Available   
Brittle   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
1.98-2.50   
2.80-2.95   

Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001)   
Uneven, Yellow, White, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic   

Cleavage
Not Available   
Distinct on [001]   

Mohs Hardness
5.5-6.5   
6-6.5   

Chemical Composition
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)   
Ca2Al2Si3O12(OH)   

Optical Properties >>
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White Opal and Prehnite Chemical Formula

While comparing White Opal and Prehnite 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 Prehnite chemical formula.

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White Opal and Prehnite Specific Gravity

Another important criteria for qualitative analysis of gemstones is White Opal and Prehnite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use White Opal and Prehnite Optical Properties during the identification of gemstone. Specific gravity of White Opal is 2.80-2.95 whereas that of Prehnite is 2.80-2.95.

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