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Eilat stone
Eilat stone

Cinnabar
Cinnabar



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Eilat stone
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Cinnabar

Eilat stone and Cinnabar Physical Properties

Physical Properties

Tenacity

-
Slightly sectile

Solubility

-
1.04 x 10−25 g per 100 ml water (Ksp at 25°C = 2 x 10−32)

Durability

-
-

Specific Gravity

-99992
1 7.18
👆🏻

Fracture

-
Uneven

Cleavage

-
Prismatic {10 1 0}, perfect

Mohs Hardness

-99992-2.5
2 10
👆🏻

Chemical Composition

Cu3(PO4)(OH)3
HgSMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Eilat stone and Cinnabar Chemical Formula

While comparing Eilat stone and Cinnabar 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 Eilat stone and Cinnabar chemical formula.

  • Chemical formula of Eilat stone- Cu3(PO4)(OH)3
  • Chemical formula of Cinnabar- HgSMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Eilat stone and Cinnabar Specific Gravity

Another important criteria for qualitative analysis of gemstones is Eilat stone and Cinnabar Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Eilat stone and Cinnabar Optical Properties during the identification of gemstone. Specific gravity of Eilat stone is 2 whereas that of Cinnabar is 2.