Chrysoberyl and Pyrophyllite Physical Properties

Chrysoberyl

Pyrophyllite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

3.69-3.812.65-2.90

1 7.18

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Fracture

Uneven, Conchoidal to uneven, ConchoidalWalter Schumann

Cleavage

Distinct on {110}, imperfect on {010}, poor on {001}

{001} Perfect

Mohs Hardness

8.5-9999

2 10

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Chemical Composition

BeAl ₂ O ₄

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

Chrysoberyl and Pyrophyllite Chemical Formula

While comparing Chrysoberyl 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 Chrysoberyl and Pyrophyllite chemical formula.

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

Compare Green Gemstones

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Chrysoberyl Vs Demantoid

Chrysoberyl Vs Dioptase

Chrysoberyl and Pyrophyllite Specific Gravity

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