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Anorthite
Anorthite

Annabergite
Annabergite



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Anorthite
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Annabergite

Anorthite and Annabergite Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Sectile
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.773.07
Amber
1 7.18
1.5 Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)
Brittle, Metallic, Brittle, Metallic, Brittle, Metallic
1.6 Cleavage
Perfect [001] good [010] poor [110]
Perfect on {010}, indistinct on {100} and {102}
1.7 Mohs Hardness
6-6.52
Amber
2 10
1.8 Chemical Composition
CaAl 2Si 2O 8Michael O’Donoghue , Gems, Sixth Edition (2006)
Ni3(AsO4)2•8(H2O)

Anorthite and Annabergite Chemical Formula

While comparing Anorthite and Annabergite 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 Annabergite chemical formula.

  • Chemical formula of Anorthite- CaAl 2Si 2O 8Michael O’Donoghue , Gems, Sixth Edition (2006)
  • Chemical formula of Annabergite- Ni3(AsO4)2•8(H2O)

Anorthite and Annabergite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Anorthite and Annabergite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Anorthite and Annabergite Optical Properties during the identification of gemstone. Specific gravity of Anorthite is 3.07 whereas that of Annabergite is 3.07.