Sillimanite and Tremolite Physical Properties

Sillimanite

Tremolite

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1 Physical Properties

1.1 Tenacity

Tough

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.20-3.262.95-3.07

1 7.18

1.5 Fracture

Splintery

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

1.6 Cleavage

{010} perfect

Perfect on {110} at 56° and 124°; partings on {010} and {100}

1.7 Mohs Hardness

6-7.55-6

2 10

1.8 Chemical Composition

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

Ca 2Mg 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.

Sillimanite and Tremolite Chemical Formula

While comparing Sillimanite and Tremolite 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 Tremolite chemical formula.

Chemical formula of Sillimanite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Tremolite- Ca 2Mg 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.

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Sillimanite and Tremolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sillimanite and Tremolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sillimanite and Tremolite Optical Properties during the identification of gemstone. Specific gravity of Sillimanite is 2.95-3.07 whereas that of Tremolite is 2.95-3.07.