Cassiterite and Phenakite Physical Properties

Cassiterite

Phenakite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

insoluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

6.86-7.032.90-2.98

1 7.18

1.5 Fracture

Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Irregular

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

1.6 Cleavage

{100} imperfect, {110} indistinct; partings on {111} or {011}

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

1.7 Mohs Hardness

6-77.5-8

2 10

1.8 Chemical Composition

SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Cassiterite and Phenakite Chemical Formula

While comparing Cassiterite 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 Cassiterite and Phenakite chemical formula.

Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Phenakite- Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Cassiterite and Phenakite Specific Gravity

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