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Prasiolite
Prasiolite

Sillimanite
Sillimanite



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Prasiolite
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Sillimanite

Prasiolite and Sillimanite Physical Properties

1 Physical Properties
1.1 Tenacity
Brittle
Tough
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.653.20-3.26
Amber
1 7.18
1.5 Fracture
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
Splintery
1.6 Cleavage
3,1
{010} perfect
1.7 Mohs Hardness
76-7.5
Amber
2 10
1.8 Chemical Composition
SiO 2Ulrich Henn and Claudio C.
Al 2SiO 5Michael O’Donoghue , Gems, Sixth Edition (2006)

Prasiolite and Sillimanite Chemical Formula

While comparing Prasiolite 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 Prasiolite and Sillimanite chemical formula.

  • Chemical formula of Prasiolite- SiO 2Ulrich Henn and Claudio C.
  • Chemical formula of Sillimanite- Al 2SiO 5Michael O’Donoghue , Gems, Sixth Edition (2006)

Prasiolite and Sillimanite Specific Gravity

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