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Sylvite
Sylvite

Phenakite
Phenakite



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Sylvite
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Phenakite

Sylvite and Phenakite Physical Properties

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1 Physical Properties
1.1 Tenacity
Brittle
Brittle
1.2 Solubility
Soluble
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.9932.90-2.98
Amber
1 7.18
1.5 Fracture
Uneven, Brittle
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001), Brittle
1.6 Cleavage
Perfect on [100], [010], [001]
Distinct on {11 2 0}, imperfect on {10 1 1}
1.7 Mohs Hardness
2.57.5-8
Amber
2 10
1.8 Chemical Composition
Not Available
Be 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Sylvite and Phenakite Chemical Formula

While comparing Sylvite 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 Sylvite and Phenakite chemical formula.

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

Sylvite and Phenakite Specific Gravity

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