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Sillimanite
Sillimanite

Crocoite
Crocoite



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Sillimanite
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Crocoite

Sillimanite and Crocoite 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)
 
-
-
-
5.90-6.10
Conchoidal
{110} Distinct, {001} Indistinct, {100} Indistinct
2.5-3
PbCrO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Sillimanite and Crocoite Chemical Formula

While comparing Sillimanite and Crocoite 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 Crocoite chemical formula.

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Sillimanite and Crocoite Specific Gravity

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