Gypsum and Beryllonite Physical Properties

Gypsum

Beryllonite

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Physical Properties

Tenacity

Flexible

Brittle

Solubility

Soluble

Durability

Specific Gravity

2.20-2.402.79-2.87

1 7.18

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Fracture

Conchoidal, Splintery, Fibrous

Conchoidal

Cleavage

Perfect on {010}, distinct on {100}

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

Mohs Hardness

25.5-6

2 10

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Chemical Composition

CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)

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

Gypsum and Beryllonite Chemical Formula

While comparing Gypsum and Beryllonite 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 Gypsum and Beryllonite chemical formula.

Chemical formula of Gypsum- CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)
Chemical formula of Beryllonite- NaBePO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Colorless Gems

Gypsum Vs Muscovite

Gypsum Vs Oligoclase

Gypsum Vs Orthoclase

Gypsum and Beryllonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gypsum and Beryllonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gypsum and Beryllonite Optical Properties during the identification of gemstone. Specific gravity of Gypsum is 2.79-2.87 whereas that of Beryllonite is 2.79-2.87.