Scolecite and Petalite Physical Properties
Solubility
Soluble
insoluble
Durability
Not Available
Not Available
Specific Gravity
2.20-2.23
2.40
Fracture
Irregular/uneven, UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Uneven
Subconchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal
Cleavage
Perfect on {110} and {1 1 0}
Perfect on {001}, poor on {201} with 38.5° angle between the two
Mohs Hardness
5-5.5
6-6.5
Chemical Composition
CaAl 2Si 3O 10 · 3H 2OUlrich Henn and Claudio C.
LiAlSi 4O 10Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Scolecite and Petalite Chemical Formula
While comparing Scolecite and Petalite 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 Scolecite and Petalite chemical formula.
- Chemical formula of Scolecite- CaAl 2Si 3O 10 · 3H 2OUlrich Henn and Claudio C.
- Chemical formula of Petalite- LiAlSi 4O 10Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Scolecite and Petalite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Scolecite and Petalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Scolecite and Petalite Optical Properties during the identification of gemstone. Specific gravity of Scolecite is 2.40 whereas that of Petalite is 2.40.