Bytownite and Anhydrite Physical Properties

Bytownite

Anhydrite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

2.72-2.752.90-2.98

1 7.18

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Fracture

Uneven

Conchoidal

Cleavage

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

Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.

Mohs Hardness

6-6.53.5

2 10

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Chemical Composition

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

CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

Bytownite and Anhydrite Chemical Formula

While comparing Bytownite and Anhydrite 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 Anhydrite 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 Anhydrite- CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

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Bytownite and Anhydrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bytownite and Anhydrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bytownite and Anhydrite Optical Properties during the identification of gemstone. Specific gravity of Bytownite is 2.90-2.98 whereas that of Anhydrite is 2.90-2.98.