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Sillimanite
Sillimanite

Mother of Pearl
Mother of Pearl



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Sillimanite
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Mother of Pearl

Sillimanite and Mother of Pearl Physical Properties

1 Physical Properties
1.1 Tenacity
Tough
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.20-3.262.65-2.87
Amber
1 7.18
1.5 Fracture
Splintery
Not Available
1.6 Cleavage
{010} perfect
Not Available
1.7 Mohs Hardness
6-7.52.5-4.5
Amber
2 10
1.8 Chemical Composition
Al 2SiO 5Michael O’Donoghue , Gems, Sixth Edition (2006)
Not Available

Sillimanite and Mother of Pearl Chemical Formula

While comparing Sillimanite and Mother of Pearl 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 Mother of Pearl chemical formula.

  • Chemical formula of Sillimanite- Al 2SiO 5Michael O’Donoghue , Gems, Sixth Edition (2006)
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Sillimanite and Mother of Pearl Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sillimanite and Mother of Pearl Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sillimanite and Mother of Pearl Optical Properties during the identification of gemstone. Specific gravity of Sillimanite is 2.65-2.87 whereas that of Mother of Pearl is 2.65-2.87.