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Prehnite
Prehnite

Feldspar
Feldspar



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Prehnite
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Prehnite and Feldspar Physical Properties

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1 Physical Properties
1.1 Tenacity
Brittle
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.80-2.952.56-2.75
Amber
1 7.18
1.5 Fracture
Uneven, Yellow, White, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic
Uneven, Conchoidal, Uneven, Conchoidal, Gemstones of the world (2001)
1.6 Cleavage
Distinct on [001]
two or three
1.7 Mohs Hardness
6-6.56-6.5
Amber
2 10
1.8 Chemical Composition
Ca2Al2Si3O12(OH)
Not Available

Prehnite and Feldspar Chemical Formula

While comparing Prehnite and Feldspar 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 Feldspar chemical formula.

  • Chemical formula of Prehnite- Ca2Al2Si3O12(OH)
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Prehnite and Feldspar Specific Gravity

Another important criteria for qualitative analysis of gemstones is Prehnite and Feldspar Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Prehnite and Feldspar Optical Properties during the identification of gemstone. Specific gravity of Prehnite is 2.56-2.75 whereas that of Feldspar is 2.56-2.75.