Dioptase and Cassiterite Physical Properties

Dioptase

Cassiterite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Soluble

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.25-3.356.86-7.03

1 7.18

1.5 Fracture

Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle

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

1.6 Cleavage

Perfect in three directions

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

1.7 Mohs Hardness

56-7

2 10

1.8 Chemical Composition

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

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

Dioptase and Cassiterite Chemical Formula

While comparing Dioptase 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 Dioptase and Cassiterite chemical formula.

Chemical formula of Dioptase- CuSiO 2(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Dioptase and Cassiterite Specific Gravity

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