Cryolite and Phenakite Physical Properties

Cryolite

Phenakite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.972.90-2.98

1 7.18

1.5 Fracture

Uneven

Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001), Brittle

1.6 Cleavage

None observed

Distinct on {11 2 0}, imperfect on {10 1 1}

1.7 Mohs Hardness

2.57.5-8

2 10

1.8 Chemical Composition

Na 3AlF 6Ulrich Henn and Claudio C.

Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Cryolite and Phenakite Chemical Formula

While comparing Cryolite 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 Cryolite and Phenakite chemical formula.

Chemical formula of Cryolite- Na 3AlF 6Ulrich Henn and Claudio C.
Chemical formula of Phenakite- Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Cryolite and Phenakite Specific Gravity

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