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Charlesite
Charlesite

Mellite
Mellite



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Charlesite
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Mellite

Charlesite and Mellite Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

-
-

Durability

-
-

Specific Gravity

1.791.58-1.60
1 7.18
👆🏻

Fracture

Irregular/uneven
Conchoidal

Cleavage

Perfect on {10bar10}
{011} Imperfect

Mohs Hardness

2.52
2 10
👆🏻

Chemical Composition

Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)
Al 2(Cl 2O 12) · 18H 2OUlrich Henn and Claudio C.

Charlesite and Mellite Chemical Formula

While comparing Charlesite 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 Charlesite and Mellite chemical formula.

  • Chemical formula of Charlesite- Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)
  • Chemical formula of Mellite- Al 2(Cl 2O 12) · 18H 2OUlrich Henn and Claudio C.

Charlesite and Mellite Specific Gravity

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