Apophyllite and Scolecite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Soluble
Durability
Not Available
Not Available
Specific Gravity
2.30-2.50
2.20-2.23
Fracture
Uneven, UnevenArthur Thomas, Gemstones (2009)
Irregular/uneven, UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Uneven
Cleavage
Perfect on (001)
Perfect on {110} and {1 1 0}
Mohs Hardness
4.5-5
5-5.5
Chemical Composition
KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
CaAl 2Si 3O 10 · 3H 2OUlrich Henn and Claudio C.
Apophyllite and Scolecite Chemical Formula
While comparing Apophyllite 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 Apophyllite and Scolecite chemical formula.
- Chemical formula of Apophyllite- KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.
- Chemical formula of Scolecite- CaAl 2Si 3O 10 · 3H 2OUlrich Henn and Claudio C.
Apophyllite and Scolecite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Apophyllite and Scolecite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Apophyllite and Scolecite Optical Properties during the identification of gemstone. Specific gravity of Apophyllite is 2.20-2.23 whereas that of Scolecite is 2.20-2.23.