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Phenakite
Phenakite

Zinnwaldite
Zinnwaldite



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Phenakite
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Zinnwaldite

Phenakite and Zinnwaldite Physical Properties

Physical Properties

Tenacity

Brittle
Elastic

Solubility

-
-

Durability

-
-

Specific Gravity

2.90-2.982.9-3.1
1 7.18
👆🏻

Fracture

Conchoidal, ConchoidalWalter Schumann
Uneven

Cleavage

Distinct on {11 2 0}, imperfect on {10 1 1}
Perfect basal {001}

Mohs Hardness

7.5-83.5-4.0
2 10
👆🏻

Chemical Composition

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

Phenakite and Zinnwaldite Chemical Formula

While comparing Phenakite and Zinnwaldite 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 Zinnwaldite chemical formula.

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

Phenakite and Zinnwaldite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Phenakite and Zinnwaldite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Phenakite and Zinnwaldite Optical Properties during the identification of gemstone. Specific gravity of Phenakite is 2.9-3.1 whereas that of Zinnwaldite is 2.9-3.1.