Sillimanite and Cerussite Physical Properties

Sillimanite

Cerussite

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1 Physical Properties

1.1 Tenacity

Tough

Not Available

1.2 Solubility

Not Available

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.20-3.266.46-6.57

1 7.18

1.5 Fracture

Splintery

Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal

1.6 Cleavage

{010} perfect

Good [110] and [021]

1.7 Mohs Hardness

6-7.53-3.5

2 10

1.8 Chemical Composition

Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)

PbCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Sillimanite and Cerussite Chemical Formula

While comparing Sillimanite and Cerussite 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 Cerussite chemical formula.

Chemical formula of Sillimanite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Cerussite- PbCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Sillimanite and Cerussite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sillimanite and Cerussite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sillimanite and Cerussite Optical Properties during the identification of gemstone. Specific gravity of Sillimanite is 6.46-6.57 whereas that of Cerussite is 6.46-6.57.