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Orthoclase
Orthoclase

Prehnite
Prehnite



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Orthoclase
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Prehnite

Orthoclase and Prehnite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Brittle
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.54-2.612.80-2.95
Amber
1 7.18
1.5 Fracture
Gems, Uneven
Uneven, Yellow, White, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic
1.6 Cleavage
Has perfect cleavage on {001} and good cleavage on {010}. Cleavages intersect at 90°.
Distinct on [001]
1.7 Mohs Hardness
66-6.5
Amber
2 10
1.8 Chemical Composition
KAlSi 3O 8Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
Ca2Al2Si3O12(OH)

Orthoclase and Prehnite Chemical Formula

While comparing Orthoclase and Prehnite 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 Orthoclase and Prehnite chemical formula.

  • Chemical formula of Orthoclase- KAlSi 3O 8Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Prehnite- Ca2Al2Si3O12(OH)

Orthoclase and Prehnite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Orthoclase and Prehnite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Orthoclase and Prehnite Optical Properties during the identification of gemstone. Specific gravity of Orthoclase is 2.80-2.95 whereas that of Prehnite is 2.80-2.95.