Bytownite and Anorthite Physical Properties

Bytownite

Anorthite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.72-2.752.77

1 7.18

1.5 Fracture

Uneven, Uneven, Gems, Sixth Edition (2006)

1.6 Cleavage

Perfect on [001], good on [010], imperfect on [110]

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

1.7 Mohs Hardness

6-6.56-6.5

2 10

1.8 Chemical Composition

Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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

Bytownite and Anorthite Chemical Formula

While comparing Bytownite 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 Bytownite and Anorthite chemical formula.

Chemical formula of Bytownite- Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Anorthite- CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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Bytownite and Anorthite Specific Gravity

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