Scolecite and Ettringite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Soluble
Partially soluble in water
Durability
Not Available
Not Available
Specific Gravity
2.20-2.23
1.77
Fracture
Irregular/uneven, UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Uneven
Not Available
Cleavage
Perfect on {110} and {1 1 0}
Perfect on {10 1 0}
Mohs Hardness
5-5.5
2-2.5
Chemical Composition
CaAl 2Si 3O 10 · 3H 2OUlrich Henn and Claudio C.
Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Scolecite and Ettringite Chemical Formula
While comparing Scolecite and Ettringite 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 Ettringite chemical formula.
- Chemical formula of Scolecite- CaAl 2Si 3O 10 · 3H 2OUlrich Henn and Claudio C.
- Chemical formula of Ettringite- Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Scolecite and Ettringite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Scolecite and Ettringite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Scolecite and Ettringite Optical Properties during the identification of gemstone. Specific gravity of Scolecite is 1.77 whereas that of Ettringite is 1.77.