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Beryllonite
Beryllonite

Mellite
Mellite



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Beryllonite
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Mellite

Beryllonite and Mellite Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

-
-

Durability

-
-

Specific Gravity

2.79-2.871.58-1.60
1 7.18
👆🏻

Fracture

Conchoidal
Conchoidal

Cleavage

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

Mohs Hardness

5.5-62
2 10
👆🏻

Chemical Composition

NaBePO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
Al 2(Cl 2O 12) · 18H 2OUlrich Henn and Claudio C.

Beryllonite and Mellite Chemical Formula

While comparing Beryllonite and Mellite 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 Mellite chemical formula.

  • Chemical formula of Beryllonite- NaBePO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Mellite- Al 2(Cl 2O 12) · 18H 2OUlrich Henn and Claudio C.

Beryllonite and Mellite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Beryllonite and Mellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Beryllonite and Mellite Optical Properties during the identification of gemstone. Specific gravity of Beryllonite is 1.58-1.60 whereas that of Mellite is 1.58-1.60.