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Cinnabar
Cinnabar

Blue John
Blue John



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Cinnabar
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Blue John

Cinnabar and Blue John 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

23.00-3.25
1 7.18
👆🏻

Fracture

Uneven
-

Cleavage

Prismatic {10 1 0}, perfect
Perfect

Mohs Hardness

2-2.5-9999
2 10
👆🏻

Chemical Composition

HgSMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
CaF 2Michael O’Donoghue , Gems, Sixth Edition (2006)

Cinnabar and Blue John Chemical Formula

While comparing Cinnabar and Blue John 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 Cinnabar and Blue John chemical formula.

  • Chemical formula of Cinnabar- HgSMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Blue John- CaF 2Michael O’Donoghue , Gems, Sixth Edition (2006)

Cinnabar and Blue John Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cinnabar and Blue John Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cinnabar and Blue John Optical Properties during the identification of gemstone. Specific gravity of Cinnabar is 3.00-3.25 whereas that of Blue John is 3.00-3.25.