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Danburite
Danburite

Charlesite
Charlesite



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Danburite
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Charlesite

Danburite and Charlesite Physical Properties

Physical Properties

Tenacity

Brittle
Brittle

Solubility

-
-

Durability

-
-

Specific Gravity

2.97-3.031.79
1 7.18
👆🏻

Fracture

Uneven, ConchoidalWalter Schumann, Conchoidal
Irregular/uneven

Cleavage

{001} Poor
Perfect on {10bar10}

Mohs Hardness

72.5
2 10
👆🏻

Chemical Composition

CaB 2(SiO 4) 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)

Danburite and Charlesite Chemical Formula

While comparing Danburite 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 Danburite and Charlesite chemical formula.

  • Chemical formula of Danburite- CaB 2(SiO 4) 2Michael 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)

Danburite and Charlesite Specific Gravity

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