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Anorthite
Anorthite

Agrellite
Agrellite



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Anorthite
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Agrellite

Anorthite and Agrellite Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

-
-

Durability

-
-

Specific Gravity

2.772.88
1 7.18
👆🏻

Fracture

Uneven
-

Cleavage

Perfect [001] good [010] poor [110]
perfect [110]

Mohs Hardness

6-6.55.5
2 10
👆🏻

Chemical Composition

CaAl 2Si 2O 8Michael O’Donoghue , Gems, Sixth Edition (2006)
NaCa2Si4O10F

Anorthite and Agrellite Chemical Formula

While comparing Anorthite and Agrellite 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 Agrellite chemical formula.

  • Chemical formula of Anorthite- CaAl 2Si 2O 8Michael O’Donoghue , Gems, Sixth Edition (2006)
  • Chemical formula of Agrellite- NaCa2Si4O10F

Anorthite and Agrellite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Anorthite and Agrellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Anorthite and Agrellite Optical Properties during the identification of gemstone. Specific gravity of Anorthite is 2.88 whereas that of Agrellite is 2.88.