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Boracite
Boracite

Charlesite
Charlesite



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Boracite
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Charlesite

Boracite and Charlesite Physical Properties

Physical Properties

Tenacity

Brittle
Brittle

Solubility

Soluble
-

Durability

-
-

Specific Gravity

2.95-2.961.79
1 7.18
👆🏻

Fracture

Conchoidal
Irregular/uneven

Cleavage

None
Perfect on {10bar10}

Mohs Hardness

7-7.52.5
2 10
👆🏻

Chemical Composition

Mg 3B 7O 13ClMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)

Boracite and Charlesite Chemical Formula

While comparing Boracite and Charlesite 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 Charlesite chemical formula.

  • Chemical formula of Boracite- Mg 3B 7O 13ClMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Charlesite- Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)

Boracite and Charlesite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Boracite and Charlesite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Boracite and Charlesite Optical Properties during the identification of gemstone. Specific gravity of Boracite is 1.79 whereas that of Charlesite is 1.79.