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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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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
2.80-2.952.58-2.63
Amber
1 7.18
1.5 Fracture
Uneven, Yellow, White, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
1.6 Cleavage
Distinct on [001]
Not Available
1.7 Mohs Hardness
6-6.56.5-7
Amber
2 10
1.8 Chemical Composition
Ca2Al2Si3O12(OH)
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.

  • Chemical formula of Prehnite- Ca2Al2Si3O12(OH)
  • Chemical formula of Sard- SiO 2Ulrich Henn and Claudio C.

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 and Sard Optical Properties during the identification of gemstone. Specific gravity of Prehnite is 2.58-2.63 whereas that of Sard is 2.58-2.63.