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Phenakite
Phenakite

Cinnabar
Cinnabar



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Phenakite
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Cinnabar

Phenakite and Cinnabar Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Slightly sectile
1.2 Solubility
Not Available
1.04 x 10−25 g per 100 ml water (Ksp at 25°C = 2 x 10−32)
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.90-2.982
Amber
1 7.18
1.5 Fracture
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001), Brittle
Uneven, Uneven, Gemstones (2009), Brittle
1.6 Cleavage
Distinct on {11 2 0}, imperfect on {10 1 1}
Prismatic {10 1 0}, perfect
1.7 Mohs Hardness
7.5-82-2.5
Amber
2 10
1.8 Chemical Composition
Be 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
HgSMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Phenakite and Cinnabar Chemical Formula

While comparing Phenakite 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 Phenakite and Cinnabar chemical formula.

  • Chemical formula of Phenakite- Be 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Cinnabar- HgSMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Phenakite and Cinnabar Specific Gravity

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