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Piemontite
Piemontite

Anorthite
Anorthite



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Piemontite
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Anorthite

Piemontite and Anorthite Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Brittle
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
Not Available2.77
Amber
1 7.18
1.5 Fracture
Uneven, Splintery
Uneven, Uneven, Gems, Sixth Edition (2006)
1.6 Cleavage
[001] good, [100] distinct
Perfect [001] good [010] poor [110]
1.7 Mohs Hardness
6-6.56-6.5
Amber
2 10
1.8 Chemical Composition
Not Available
CaAl 2Si 2O 8Michael O’Donoghue , Gems, Sixth Edition (2006)

Piemontite and Anorthite Chemical Formula

While comparing Piemontite and Anorthite 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 Piemontite and Anorthite chemical formula.

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  • Chemical formula of Anorthite- CaAl 2Si 2O 8Michael O’Donoghue , Gems, Sixth Edition (2006)

Piemontite and Anorthite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Piemontite and Anorthite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Piemontite and Anorthite Optical Properties during the identification of gemstone. Specific gravity of Piemontite is 2.77 whereas that of Anorthite is 2.77.