Smithsonite and Cuprite Physical Properties

Smithsonite

Cuprite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.00-4.655.85-6.15

1 7.18

1.5 Fracture

Uneven, Sub-Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic

Conchoidal, Metallic, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal

1.6 Cleavage

Perfect on [1011]

Fair in four directions forming octahedrons

1.7 Mohs Hardness

5-5.53.5-4

2 10

1.8 Chemical Composition

ZnCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Smithsonite and Cuprite Chemical Formula

While comparing Smithsonite and Cuprite 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 Smithsonite and Cuprite chemical formula.

Chemical formula of Smithsonite- ZnCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Cuprite- Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Smithsonite and Cuprite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Smithsonite and Cuprite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Smithsonite and Cuprite Optical Properties during the identification of gemstone. Specific gravity of Smithsonite is 5.85-6.15 whereas that of Cuprite is 5.85-6.15.