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Prehnite
Prehnite

Realgar
Realgar



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Prehnite
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Realgar

Prehnite and Realgar Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
2.80-2.95
Uneven
Distinct on [001]
6-6.5
Ca2Al2Si3O12(OH)
 
-
-
-
3.56
-
{010} Good
-9999
AsSMichael O’Donoghue , Gems, Sixth Edition (2006)

Prehnite and Realgar Chemical Formula

While comparing Prehnite and Realgar 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 Prehnite and Realgar chemical formula.

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Prehnite and Realgar Specific Gravity

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