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Crystal Opal
Crystal Opal

Phenakite
Phenakite



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Crystal Opal
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Phenakite

Crystal Opal and Phenakite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Brittle
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.97-2.222.90-2.98
Amber
1 7.18
1.5 Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001), Brittle
1.6 Cleavage
Not Available
Distinct on {11 2 0}, imperfect on {10 1 1}
1.7 Mohs Hardness
5.5-6.57.5-8
Amber
2 10
1.8 Chemical Composition
SiO 2 + H 2OUlrich Henn and Claudio C.
Be 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Crystal Opal and Phenakite Chemical Formula

While comparing Crystal Opal and Phenakite 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 Crystal Opal and Phenakite chemical formula.

  • Chemical formula of Crystal Opal- SiO 2 + H 2OUlrich Henn and Claudio C.
  • Chemical formula of Phenakite- Be 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Crystal Opal and Phenakite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Crystal Opal and Phenakite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Crystal Opal and Phenakite Optical Properties during the identification of gemstone. Specific gravity of Crystal Opal is 2.90-2.98 whereas that of Phenakite is 2.90-2.98.