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Sillimanite
Sillimanite

Malachite
Malachite



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Sillimanite
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Malachite

Sillimanite and Malachite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Tough
-
-
3.20-3.26
Splintery
{010} perfect
6-7.5
Al 2SiO 5Michael O’Donoghue , Gems, Sixth Edition (2006)
 
-
-
-
3.25-4.10
Conchoidal, Uneven
Perfect on { 2 01} fair on {010}
3.5-4
Cu2CO3(OH)2

Sillimanite and Malachite Chemical Formula

While comparing Sillimanite 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 Sillimanite and Malachite chemical formula.

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Sillimanite and Malachite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sillimanite and Malachite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sillimanite Vs Malachite during the identification of gemstone. Specific gravity of Sillimanite is whereas that of Malachite is .