Malachite and Sunstone Physical Properties

Malachite

Sunstone

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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

3.25-4.102.62-2.65

1 7.18

1.5 Fracture

Conchoidal, Conchoidal, Gemstones (2009), Uneven

Gemstones of the world (2001)

1.6 Cleavage

Perfect on { 2 01} fair on {010}

001

1.7 Mohs Hardness

3.5-46

2 10

1.8 Chemical Composition

Cu₂CO₃(OH)₂

Microcline: KAlSi₃O₈ Oligoclase: (Na,Ca)Al_1-2Si_3-2O₈

Malachite and Sunstone Chemical Formula

While comparing Malachite and Sunstone 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 Sunstone chemical formula.

Chemical formula of Malachite- Cu₂CO₃(OH)₂
Chemical formula of Sunstone- Microcline: KAlSi₃O₈ Oligoclase: (Na,Ca)Al_1-2Si_3-2O₈

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Malachite and Sunstone Specific Gravity

Another important criteria for qualitative analysis of gemstones is Malachite and Sunstone Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Malachite and Sunstone Optical Properties during the identification of gemstone. Specific gravity of Malachite is 2.62-2.65 whereas that of Sunstone is 2.62-2.65.