Phenakite and Cassiterite Physical Properties

Phenakite

Cassiterite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.90-2.986.86-7.03

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

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

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

1.7 Mohs Hardness

7.5-86-7

2 10

1.8 Chemical Composition

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

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

Phenakite and Cassiterite Chemical Formula

While comparing Phenakite and Cassiterite 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 Cassiterite chemical formula.

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

Compare Colorless Gems

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Phenakite Vs Quartz

Phenakite Vs Pyromorphite

Phenakite and Cassiterite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Phenakite and Cassiterite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Phenakite and Cassiterite Optical Properties during the identification of gemstone. Specific gravity of Phenakite is 6.86-7.03 whereas that of Cassiterite is 6.86-7.03.