Malachite and Anhydrite Physical Properties

Malachite

Anhydrite

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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

3.25-4.102.90-2.98

1 7.18

1.5 Fracture

Conchoidal, Conchoidal, Gemstones (2009), Uneven

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

1.6 Cleavage

Perfect on { 2 01} fair on {010}

Rare tabular and prismatic crystals. Usually occurs as fibrous, parallel veins that break off into cleavage fragments.

1.7 Mohs Hardness

3.5-43.5

2 10

1.8 Chemical Composition

Cu₂CO₃(OH)₂

CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

Malachite and Anhydrite Chemical Formula

While comparing Malachite and Anhydrite 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 Anhydrite chemical formula.

Chemical formula of Malachite- Cu₂CO₃(OH)₂
Chemical formula of Anhydrite- CaSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

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Malachite and Anhydrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Malachite and Anhydrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Malachite and Anhydrite Optical Properties during the identification of gemstone. Specific gravity of Malachite is 2.90-2.98 whereas that of Anhydrite is 2.90-2.98.