Dioptase and Purpurite Physical Properties

Dioptase

Purpurite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.25-3.353.2-3.4

1 7.18

1.5 Fracture

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

Uneven, UnevenArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

Perfect in three directions

[100] [001] perfect

1.7 Mohs Hardness

54-4.5

2 10

1.8 Chemical Composition

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

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

Dioptase and Purpurite Chemical Formula

While comparing Dioptase and Purpurite 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 Purpurite chemical formula.

Chemical formula of Dioptase- CuSiO 2(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Purpurite- MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references

Compare Green Gemstones

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Dioptase Vs Faustite

Dioptase Vs Feldspar

Dioptase and Purpurite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Dioptase and Purpurite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dioptase and Purpurite Optical Properties during the identification of gemstone. Specific gravity of Dioptase is 3.2-3.4 whereas that of Purpurite is 3.2-3.4.