Beryllonite and Apophyllite KF Physical Properties

Beryllonite

Apophyllite KF

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

2.79-2.872.33-2.37

1 7.18

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Fracture

Conchoidal

Uneven

Cleavage

{010} perfect; {100} good, interrupted; {101} indistinct; {001} in traces

Perfect on {001}, imperfect on {110}

Mohs Hardness

5.5-64.5-5

2 10

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Chemical Composition

NaBePO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

(K,Na)Ca4Si8O20(F,OH)•8(H2O)

Beryllonite and Apophyllite KF Chemical Formula

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

Chemical formula of Beryllonite- NaBePO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Apophyllite KF- (K,Na)Ca4Si8O20(F,OH)•8(H2O)

Compare Colorless Gems

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Beryllonite Vs Hambergite

Beryllonite Vs Herderite

Beryllonite and Apophyllite KF Specific Gravity

Another important criteria for qualitative analysis of gemstones is Beryllonite and Apophyllite KF Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Beryllonite and Apophyllite KF Optical Properties during the identification of gemstone. Specific gravity of Beryllonite is 2.33-2.37 whereas that of Apophyllite KF is 2.33-2.37.