Apophyllite KF and Bytownite Physical Properties

Apophyllite KF

Bytownite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

Brittle

2.33-2.37

Uneven

Perfect on {001}, imperfect on {110}

4.5-5

(K,Na)Ca4Si8O20(F,OH)•8(H2O)

Brittle

2.72-2.75

Uneven

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

6-6.5

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

Apophyllite KF and Bytownite Chemical Formula

While comparing Apophyllite KF and Bytownite 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 Apophyllite KF and Bytownite chemical formula.

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Apophyllite KF and Bytownite Specific Gravity

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