Malachite and Jacobsite Physical Properties

Malachite

Jacobsite

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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

3.25-4.104.76-5.03

1 7.18

1.5 Fracture

Conchoidal, Conchoidal, Gemstones (2009), Uneven

Conchoidal, Brittle

1.6 Cleavage

Perfect on { 2 01} fair on {010}

None

1.7 Mohs Hardness

3.5-45.5-6.5

2 10

1.8 Chemical Composition

Cu₂CO₃(OH)₂

(Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)

Malachite and Jacobsite Chemical Formula

While comparing Malachite and Jacobsite 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 Jacobsite chemical formula.

Chemical formula of Malachite- Cu₂CO₃(OH)₂
Chemical formula of Jacobsite- (Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)

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Malachite and Jacobsite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Malachite and Jacobsite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Malachite and Jacobsite Optical Properties during the identification of gemstone. Specific gravity of Malachite is 4.76-5.03 whereas that of Jacobsite is 4.76-5.03.