Malachite and Hardystonite Physical Properties

Malachite

Hardystonite

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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

3.25-4.103.396-3.443

1 7.18

1.5 Fracture

Conchoidal, Conchoidal, Gemstones (2009), Uneven

Brittle, Metallic

1.6 Cleavage

Perfect on { 2 01} fair on {010}

[001] good, [100] and [110] fair

1.7 Mohs Hardness

3.5-43-4

2 10

1.8 Chemical Composition

Cu₂CO₃(OH)₂

Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001)

Malachite and Hardystonite Chemical Formula

While comparing Malachite and Hardystonite 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 Hardystonite chemical formula.

Chemical formula of Malachite- Cu₂CO₃(OH)₂
Chemical formula of Hardystonite- Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001)

Compare Gems for Scorpio

Malachite Vs Unakite

Malachite Vs Rhodochrosite

Malachite Vs Alexandrite

Malachite and Hardystonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Malachite and Hardystonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Malachite and Hardystonite Optical Properties during the identification of gemstone. Specific gravity of Malachite is 3.396-3.443 whereas that of Hardystonite is 3.396-3.443.