Bytownite and Cryolite Physical Properties

Bytownite

Cryolite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.72-2.752.97

1 7.18

1.5 Fracture

Uneven, Uneven, Gems, Sixth Edition (2006)

Uneven

1.6 Cleavage

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

None observed

1.7 Mohs Hardness

6-6.52.5

2 10

1.8 Chemical Composition

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

Na 3AlF 6Ulrich Henn and Claudio C.

Bytownite and Cryolite Chemical Formula

While comparing Bytownite and Cryolite 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 Cryolite 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 Cryolite- Na 3AlF 6Ulrich Henn and Claudio C.

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Bytownite and Cryolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bytownite and Cryolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bytownite and Cryolite Optical Properties during the identification of gemstone. Specific gravity of Bytownite is 2.97 whereas that of Cryolite is 2.97.