Sillimanite and Scolecite Physical Properties
Solubility
Not Available
Soluble
Durability
Not Available
Not Available
Specific Gravity
3.20-3.26
2.20-2.23
Fracture
Splintery
Irregular/uneven, UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Uneven
Cleavage
{010} perfect
Perfect on {110} and {1 1 0}
Mohs Hardness
6-7.5
5-5.5
Chemical Composition
Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
CaAl 2Si 3O 10 · 3H 2OUlrich Henn and Claudio C.
Sillimanite and Scolecite Chemical Formula
While comparing Sillimanite and Scolecite 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 Scolecite chemical formula.
- Chemical formula of Sillimanite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Scolecite- CaAl 2Si 3O 10 · 3H 2OUlrich Henn and Claudio C.
Sillimanite and Scolecite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sillimanite and Scolecite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sillimanite and Scolecite Optical Properties during the identification of gemstone. Specific gravity of Sillimanite is 2.20-2.23 whereas that of Scolecite is 2.20-2.23.