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Beryllonite
Beryllonite

Jet
Jet



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Beryllonite
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Jet

Beryllonite and Jet Physical Properties

Jet
Jet
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Physical Properties

Tenacity

Brittle
-

Solubility

-
-

Durability

-
-

Specific Gravity

2.79-2.871.19-1.35
1 7.18
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Fracture

Conchoidal
ConchoidalWalter Schumann

Cleavage

{010} perfect; {100} good, interrupted; {101} indistinct; {001} in traces
None

Mohs Hardness

5.5-62.5-4
2 10
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Chemical Composition

NaBePO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
C

Beryllonite and Jet Chemical Formula

While comparing Beryllonite and Jet 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 Jet chemical formula.

  • Chemical formula of Beryllonite- NaBePO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Jet- C

Beryllonite and Jet Specific Gravity

Another important criteria for qualitative analysis of gemstones is Beryllonite and Jet Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Beryllonite and Jet Optical Properties during the identification of gemstone. Specific gravity of Beryllonite is 1.19-1.35 whereas that of Jet is 1.19-1.35.