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Sillimanite
Sillimanite

Plumbogummite
Plumbogummite



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Sillimanite
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Plumbogummite

Sillimanite and Plumbogummite 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)
 
Brittle
Soluble
-
4.014
Uneven, Conchoidal
None
4-5
PbAl3(PO4)(SO4)(OH)6

Sillimanite and Plumbogummite Chemical Formula

While comparing Sillimanite and Plumbogummite 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 Plumbogummite chemical formula.

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Sillimanite and Plumbogummite Specific Gravity

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