Malachite and Chiastolite Physical Properties

Malachite

Chiastolite

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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

3.25-4.103.00-3.15

1 7.18

1.5 Fracture

Conchoidal, Conchoidal, Gemstones (2009), Uneven

Not Available

1.6 Cleavage

Perfect on { 2 01} fair on {010}

Not Available

1.7 Mohs Hardness

3.5-45-5.5

2 10

1.8 Chemical Composition

Cu₂CO₃(OH)₂

Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006)

Malachite and Chiastolite Chemical Formula

While comparing Malachite and Chiastolite 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 Chiastolite chemical formula.

Chemical formula of Malachite- Cu₂CO₃(OH)₂
Chemical formula of Chiastolite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006)

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Malachite and Chiastolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Malachite and Chiastolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Malachite and Chiastolite Optical Properties during the identification of gemstone. Specific gravity of Malachite is 3.00-3.15 whereas that of Chiastolite is 3.00-3.15.