Malachite and Diaspore Physical Properties

Malachite

Diaspore

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1 Physical Properties

1.1 Tenacity

Not Available

Very brittle

1.2 Solubility

Not Available

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.25-4.103.30-3.40

1 7.18

1.5 Fracture

Conchoidal, Conchoidal, Gemstones (2009), Uneven

Conchoidal, Brittle, Conchoidal

1.6 Cleavage

Perfect on { 2 01} fair on {010}

{010} perfect, {110} distinct, {100} in traces

1.7 Mohs Hardness

3.5-46.5-7

2 10

1.8 Chemical Composition

Cu₂CO₃(OH)₂

AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references

Malachite and Diaspore Chemical Formula

While comparing Malachite and Diaspore 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 Malachite and Diaspore chemical formula.

Chemical formula of Malachite- Cu₂CO₃(OH)₂
Chemical formula of Diaspore- AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references

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Malachite and Diaspore Specific Gravity

Another important criteria for qualitative analysis of gemstones is Malachite and Diaspore Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Malachite and Diaspore Optical Properties during the identification of gemstone. Specific gravity of Malachite is 3.30-3.40 whereas that of Diaspore is 3.30-3.40.