Malachite and Sugilite Physical Properties

Malachite

Sugilite

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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

3.25-4.102.69-2.79

1 7.18

1.5 Fracture

Conchoidal, Conchoidal, Gemstones (2009), Uneven

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Perfect on { 2 01} fair on {010}

Poor on {0001}

1.7 Mohs Hardness

3.5-45.5-6.5

2 10

1.8 Chemical Composition

Cu₂CO₃(OH)₂

KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Malachite and Sugilite Chemical Formula

While comparing Malachite and Sugilite 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 Sugilite chemical formula.

Chemical formula of Malachite- Cu₂CO₃(OH)₂
Chemical formula of Sugilite- KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Malachite and Sugilite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Malachite and Sugilite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Malachite and Sugilite Optical Properties during the identification of gemstone. Specific gravity of Malachite is 2.69-2.79 whereas that of Sugilite is 2.69-2.79.