Bytownite and Apophyllite Physical Properties

Bytownite

Apophyllite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.72-2.752.30-2.50

1 7.18

1.5 Fracture

Uneven, Uneven, Gems, Sixth Edition (2006)

Uneven, UnevenArthur Thomas, Gemstones (2009)

1.6 Cleavage

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

Perfect on (001)

1.7 Mohs Hardness

6-6.54.5-5

2 10

1.8 Chemical Composition

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

KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.

Bytownite and Apophyllite Chemical Formula

While comparing Bytownite and Apophyllite 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 Apophyllite 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 Apophyllite- KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.

Compare Gems Found In Australia

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Bytownite and Apophyllite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bytownite and Apophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bytownite and Apophyllite Optical Properties during the identification of gemstone. Specific gravity of Bytownite is 2.30-2.50 whereas that of Apophyllite is 2.30-2.50.