Beryllonite and Pyrophyllite Physical Properties

Beryllonite

Pyrophyllite

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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

2.79-2.872.65-2.90

1 7.18

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal

Gemstones (2009), Flexible Flexible fragments.

1.6 Cleavage

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

{001} Perfect

1.7 Mohs Hardness

5.5-6Not Available

2 10

1.8 Chemical Composition

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

Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Beryllonite and Pyrophyllite Chemical Formula

While comparing Beryllonite and Pyrophyllite 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 Pyrophyllite chemical formula.

Chemical formula of Beryllonite- NaBePO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Colorless Gems

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Beryllonite and Pyrophyllite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Beryllonite and Pyrophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Beryllonite and Pyrophyllite Optical Properties during the identification of gemstone. Specific gravity of Beryllonite is 2.65-2.90 whereas that of Pyrophyllite is 2.65-2.90.