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Sillimanite
Sillimanite

Petrified Wood
Petrified Wood



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Petrified Wood

Sillimanite and Petrified Wood 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
3.20-3.26
2.58-2.91
1.5 Fracture
Splintery
Uneven
1.6 Cleavage
{010} perfect
Not Available
1.7 Mohs Hardness
6-7.5
7
1.8 Chemical Composition
Al 2SiO 5Michael O’Donoghue , Gems, Sixth Edition (2006)
Not Available

Sillimanite and Petrified Wood Chemical Formula

While comparing Sillimanite and Petrified Wood 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 Petrified Wood chemical formula.

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

Another important criteria for qualitative analysis of gemstones is Sillimanite and Petrified Wood Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sillimanite and Petrified Wood Optical Properties during the identification of gemstone. Specific gravity of Sillimanite is 2.58-2.91 whereas that of Petrified Wood is 2.58-2.91.