Sillimanite and Riesling Beryl Physical Properties

Sillimanite

Riesling Beryl

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1 Physical Properties

1.1 Tenacity

Tough

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.20-3.262.66-2.86

1 7.18

1.5 Fracture

Splintery

ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001)

1.6 Cleavage

{010} perfect

Not Available

1.7 Mohs Hardness

6-7.57.5-8

2 10

1.8 Chemical Composition

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

Al 2Be 3Si 6O 18Martin H.

Sillimanite and Riesling Beryl Chemical Formula

While comparing Sillimanite and Riesling Beryl 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 Riesling Beryl chemical formula.

Chemical formula of Sillimanite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Riesling Beryl- Al 2Be 3Si 6O 18Martin H.

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Sillimanite and Riesling Beryl Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sillimanite and Riesling Beryl Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sillimanite and Riesling Beryl Optical Properties during the identification of gemstone. Specific gravity of Sillimanite is 2.66-2.86 whereas that of Riesling Beryl is 2.66-2.86.