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Prehnite
Prehnite

Annabergite
Annabergite



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Prehnite
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Annabergite

Prehnite and Annabergite 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)
 
Sectile
-
-
3.07
-
Perfect on {010}, indistinct on {100} and {102}
2
Ni3(AsO4)2•8(H2O)

Prehnite and Annabergite Chemical Formula

While comparing Prehnite and Annabergite 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 Annabergite chemical formula.

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Prehnite and Annabergite Specific Gravity

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