Anorthite and Aragonite Physical Properties

Anorthite

Aragonite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

Dilute acid

1.3 Durability

Not Available

1.4 Specific Gravity

2.772.93-2.96

1 7.18

1.5 Fracture

Uneven, Uneven, Gems, Sixth Edition (2006)

Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

1.6 Cleavage

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

Distinct on {010}, imperfect {110} and {011}

1.7 Mohs Hardness

6-6.53.5-4

2 10

1.8 Chemical Composition

CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Anorthite and Aragonite Chemical Formula

While comparing Anorthite and Aragonite 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 Aragonite chemical formula.

Chemical formula of Anorthite- CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Aragonite- CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Anorthite and Aragonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Anorthite and Aragonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Anorthite and Aragonite Optical Properties during the identification of gemstone. Specific gravity of Anorthite is 2.93-2.96 whereas that of Aragonite is 2.93-2.96.