Tortoiseshell and Beryllonite Physical Properties

Tortoiseshell

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

1.25-1.352.79-2.87

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

Not Available

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

1.7 Mohs Hardness

Not Available5.5-6

2 10

1.8 Chemical Composition

Not Available

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

Tortoiseshell and Beryllonite Chemical Formula

While comparing Tortoiseshell 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 Tortoiseshell and Beryllonite chemical formula.

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

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Tortoiseshell and Beryllonite Specific Gravity

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