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Phenakite
Phenakite

Benitoite
Benitoite



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Phenakite
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Benitoite

Phenakite and Benitoite Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

-
Insoluble: HCl

Durability

-
-

Specific Gravity

2.90-2.983.61-3.68
1 7.18
👆🏻

Fracture

Conchoidal, ConchoidalWalter Schumann
Conchoidal

Cleavage

Distinct on {11 2 0}, imperfect on {10 1 1}
[10 1 1] poor

Mohs Hardness

7.5-86-6.5
2 10
👆🏻

Chemical Composition

Be 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
BaTiSi 3O 9Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Phenakite and Benitoite Chemical Formula

While comparing Phenakite and Benitoite 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 Benitoite chemical formula.

  • Chemical formula of Phenakite- Be 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Benitoite- BaTiSi 3O 9Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Phenakite and Benitoite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Phenakite and Benitoite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Phenakite and Benitoite Optical Properties during the identification of gemstone. Specific gravity of Phenakite is 3.61-3.68 whereas that of Benitoite is 3.61-3.68.