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Boracite
Boracite

Mellite
Mellite



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Boracite
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Mellite

Boracite and Mellite Physical Properties

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Physical Properties

Tenacity

Brittle
-

Solubility

Soluble
-

Durability

-
-

Specific Gravity

2.95-2.961.58-1.60
1 7.18
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Fracture

Conchoidal
Conchoidal

Cleavage

None
{011} Imperfect

Mohs Hardness

7-7.52
2 10
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Chemical Composition

Mg 3B 7O 13ClMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
Al 2(Cl 2O 12) · 18H 2OUlrich Henn and Claudio C.

Boracite and Mellite Chemical Formula

While comparing Boracite 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 Boracite and Mellite chemical formula.

  • Chemical formula of Boracite- Mg 3B 7O 13ClMichael 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.

Boracite and Mellite Specific Gravity

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