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Anorthite
Anorthite

Sard
Sard



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Anorthite
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Sard

Anorthite and Sard Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
2.77
Uneven
Perfect [001] good [010] poor [110]
6-6.5
CaAl 2Si 2O 8Michael O’Donoghue , Gems, Sixth Edition (2006)
 
-
-
-
2.58-2.63
Conchoidal
None
6.5-7
SiO 2Ulrich Henn and Claudio C.

Anorthite and Sard Chemical Formula

While comparing Anorthite 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 Anorthite and Sard chemical formula.

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Anorthite and Sard Specific Gravity

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