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Charlesite
Charlesite

Williamsite
Williamsite



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Charlesite
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Williamsite

Charlesite and Williamsite Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

-
-

Durability

-
-

Specific Gravity

1.792.51-2.63
1 7.18
👆🏻

Fracture

Irregular/uneven
Conchoidal

Cleavage

Perfect on {10bar10}
Perfect

Mohs Hardness

2.54
2 10
👆🏻

Chemical Composition

Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)
(Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)

Charlesite and Williamsite Chemical Formula

While comparing Charlesite and Williamsite 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 Charlesite and Williamsite chemical formula.

  • Chemical formula of Charlesite- Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)
  • Chemical formula of Williamsite- (Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)

Charlesite and Williamsite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Charlesite and Williamsite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Charlesite and Williamsite Optical Properties during the identification of gemstone. Specific gravity of Charlesite is 2.51-2.63 whereas that of Williamsite is 2.51-2.63.