Gahnospinel and Malachite Physical Properties

Gahnospinel

Malachite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.5 Durability

Not Available

1.7 Specific Gravity

3.65-4.553.25-4.10

1 7.18

1.16 Fracture

ConchoidalArthur Thomas, Gemstones (2009)

Conchoidal, Conchoidal, Gemstones (2009), Uneven

1.17 Cleavage

None, but may exhibit slight parting

Perfect on { 2 01} fair on {010}

1.18 Mohs Hardness

7.5-83.5-4

2 10

1.19 Chemical Composition

(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)

Cu₂CO₃(OH)₂

Gahnospinel and Malachite Chemical Formula

While comparing Gahnospinel and Malachite 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 Gahnospinel and Malachite chemical formula.

Chemical formula of Gahnospinel- (Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)
Chemical formula of Malachite- Cu₂CO₃(OH)₂

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Gahnospinel Vs Jeremejevite

Gahnospinel and Malachite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gahnospinel and Malachite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gahnospinel and Malachite Optical Properties during the identification of gemstone. Specific gravity of Gahnospinel is 3.25-4.10 whereas that of Malachite is 3.25-4.10.