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Charlesite
Charlesite

Nephrite
Nephrite



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Charlesite
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Nephrite

Charlesite and Nephrite Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

-
-

Durability

-
-

Specific Gravity

1.792.90-3.10
1 7.18
👆🏻

Fracture

Irregular/uneven
Splintery, Granular

Cleavage

Perfect on {10bar10}
None

Mohs Hardness

2.56-6.5
2 10
👆🏻

Chemical Composition

Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)
Ca 2(Mg,Fe) 5(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references

Charlesite and Nephrite Chemical Formula

While comparing Charlesite and Nephrite 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 Nephrite chemical formula.

  • Chemical formula of Charlesite- Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)
  • Chemical formula of Nephrite- Ca 2(Mg,Fe) 5(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references

Charlesite and Nephrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Charlesite and Nephrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Charlesite and Nephrite Optical Properties during the identification of gemstone. Specific gravity of Charlesite is 2.90-3.10 whereas that of Nephrite is 2.90-3.10.