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Prehnite
Prehnite

Heliotrope
Heliotrope



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Prehnite
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Heliotrope

Prehnite and Heliotrope Physical Properties

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)
 
-
-
-
2.61
-
None
6.5-7
SiO2

Prehnite and Heliotrope Chemical Formula

While comparing Prehnite and Heliotrope 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 Heliotrope chemical formula.

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Prehnite and Heliotrope Specific Gravity

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