Morganite and Sillimanite Physical Properties

Morganite

Sillimanite

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1 Physical Properties

1.1 Tenacity

Not Available

Tough

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.71-2.903.20-3.26

1 7.18

1.5 Fracture

Not Available

Splintery

1.6 Cleavage

3,1 basal

{010} perfect

1.7 Mohs Hardness

7.5-86-7.5

2 10

1.8 Chemical Composition

Be₃Al₂SiO₆

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

Morganite and Sillimanite Chemical Formula

While comparing Morganite and Sillimanite 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 Morganite and Sillimanite chemical formula.

Chemical formula of Morganite- Be₃Al₂SiO₆
Chemical formula of Sillimanite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)

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Morganite and Sillimanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Morganite and Sillimanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Morganite and Sillimanite Optical Properties during the identification of gemstone. Specific gravity of Morganite is 3.20-3.26 whereas that of Sillimanite is 3.20-3.26.