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Anorthoclase
Anorthoclase

Almandine
Almandine



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Anorthoclase
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Anorthoclase and Almandine Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.56-2.62
3.95-4.30
1.5 Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)
Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
1.6 Cleavage
From the Greek for oblique and fracture, descriptive of the cleavage
none
1.7 Mohs Hardness
6-6.5
7-7.5
1.8 Chemical Composition
(Na,K)AlSi 3O 8Michael O’Donoghue , Gems, Sixth Edition (2006)
Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Anorthoclase and Almandine Chemical Formula

While comparing Anorthoclase and Almandine 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 Anorthoclase and Almandine chemical formula.

  • Chemical formula of Anorthoclase- (Na,K)AlSi 3O 8Michael O’Donoghue , Gems, Sixth Edition (2006)
  • Chemical formula of Almandine- Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Anorthoclase and Almandine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Anorthoclase and Almandine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Anorthoclase and Almandine Optical Properties during the identification of gemstone. Specific gravity of Anorthoclase is 3.95-4.30 whereas that of Almandine is 3.95-4.30.

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