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Prehnite
Prehnite

Sard
Sard



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Prehnite
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Sard

Prehnite and Sard 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)
 
-
-
-
2.58-2.63
Conchoidal
None
6.5-7
SiO 2Ulrich Henn and Claudio C.

Prehnite and Sard Chemical Formula

While comparing Prehnite and Sard 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 Sard chemical formula.

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Prehnite and Sard Specific Gravity

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