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Beryllonite
Beryllonite

Wulfenite
Wulfenite



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Beryllonite
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Wulfenite

Beryllonite and Wulfenite Physical Properties

Physical Properties

Tenacity

Brittle
Brittle

Solubility

-
-

Durability

-
-

Specific Gravity

2.79-2.876.50-7.00
1 7.18
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Fracture

Conchoidal
Irregular, Conchoidal

Cleavage

{010} perfect; {100} good, interrupted; {101} indistinct; {001} in traces
On {011}, distinct; on {001}, {013}, indistinct

Mohs Hardness

5.5-63
2 10
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Chemical Composition

NaBePO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
PbMoO 4Walter Schumann , Gemstones of the world (2001)

Beryllonite and Wulfenite Chemical Formula

While comparing Beryllonite and Wulfenite 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 Wulfenite chemical formula.

  • Chemical formula of Beryllonite- NaBePO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Wulfenite- PbMoO 4Walter Schumann , Gemstones of the world (2001)

Beryllonite and Wulfenite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Beryllonite and Wulfenite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Beryllonite and Wulfenite Optical Properties during the identification of gemstone. Specific gravity of Beryllonite is 6.50-7.00 whereas that of Wulfenite is 6.50-7.00.