Sillimanite and Dolomite Physical Properties

Sillimanite

Dolomite

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1 Physical Properties

1.1 Tenacity

Tough

Brittle

1.2 Solubility

Not Available

Poorly soluble in dilute HCl

1.3 Durability

Not Available

1.4 Specific Gravity

3.20-3.262.80-2.95

1 7.18

1.5 Fracture

Splintery

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal

1.6 Cleavage

{010} perfect

Perfect on {10 1 1}, rhombohedral cleavage

1.7 Mohs Hardness

6-7.53.5-4

2 10

1.8 Chemical Composition

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

CaMg(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Sillimanite and Dolomite Chemical Formula

While comparing Sillimanite and Dolomite 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 Dolomite chemical formula.

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

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Sillimanite and Dolomite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sillimanite and Dolomite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sillimanite and Dolomite Optical Properties during the identification of gemstone. Specific gravity of Sillimanite is 2.80-2.95 whereas that of Dolomite is 2.80-2.95.