Malachite and Pyrophyllite Physical Properties

Malachite

Pyrophyllite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.25-4.102.65-2.90

1 7.18

1.5 Fracture

Conchoidal, Conchoidal, Gemstones (2009), Uneven

Gemstones (2009), Flexible Flexible fragments.

1.6 Cleavage

Perfect on { 2 01} fair on {010}

{001} Perfect

1.7 Mohs Hardness

3.5-4Not Available

2 10

1.8 Chemical Composition

Cu₂CO₃(OH)₂

Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Malachite and Pyrophyllite Chemical Formula

While comparing Malachite and Pyrophyllite 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 Pyrophyllite chemical formula.

Chemical formula of Malachite- Cu₂CO₃(OH)₂
Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Malachite and Pyrophyllite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Malachite and Pyrophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Malachite and Pyrophyllite Optical Properties during the identification of gemstone. Specific gravity of Malachite is 2.65-2.90 whereas that of Pyrophyllite is 2.65-2.90.