Peridot and Beryllonite Physical Properties

Peridot

Beryllonite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

1.54-1.552.79-2.87

1 7.18

1.5 Fracture

Conchoidal

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

1.6 Cleavage

Poor

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

1.7 Mohs Hardness

6.5-75.5-6

2 10

1.8 Chemical Composition

(Mg,Fe)₂SiO₄

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

Peridot and Beryllonite Chemical Formula

While comparing Peridot 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 Peridot and Beryllonite chemical formula.

Chemical formula of Peridot- (Mg,Fe)₂SiO₄
Chemical formula of Beryllonite- NaBePO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Semi Precious Gemstones

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Peridot and Beryllonite Specific Gravity

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