Purpurite and Cuprite Physical Properties

Purpurite

Cuprite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.2-3.45.85-6.15

1 7.18

1.5 Fracture

Uneven, UnevenArthur Thomas, Gemstones (2009), Brittle

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

1.6 Cleavage

[100] [001] perfect

Fair in four directions forming octahedrons

1.7 Mohs Hardness

4-4.53.5-4

2 10

1.8 Chemical Composition

MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references

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

Purpurite and Cuprite Chemical Formula

While comparing Purpurite 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 Purpurite and Cuprite chemical formula.

Chemical formula of Purpurite- MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references
Chemical formula of Cuprite- Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Violet Gemstones

Purpurite Vs Sard

Purpurite Vs Sardonyx

Purpurite Vs Sapphire

Purpurite and Cuprite Specific Gravity

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