Scolecite and Boulder Opal Physical Properties
Tenacity
Brittle
Not Available
Solubility
Soluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.20-2.23
1.98-2.25
Fracture
Irregular/uneven, UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Uneven
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
Perfect on {110} and {1 1 0}
Not Available
Mohs Hardness
5-5.5
5-6.5
Chemical Composition
CaAl 2Si 3O 10 · 3H 2OUlrich Henn and Claudio C.
SiO 2 + H 2OUlrich Henn and Claudio C.
Scolecite and Boulder Opal Chemical Formula
While comparing Scolecite and Boulder Opal 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 Boulder Opal chemical formula.
- Chemical formula of Scolecite- CaAl 2Si 3O 10 · 3H 2OUlrich Henn and Claudio C.
- Chemical formula of Boulder Opal- SiO 2 + H 2OUlrich Henn and Claudio C.
Scolecite and Boulder Opal Specific Gravity
Another important criteria for qualitative analysis of gemstones is Scolecite and Boulder Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Scolecite and Boulder Opal Optical Properties during the identification of gemstone. Specific gravity of Scolecite is 1.98-2.25 whereas that of Boulder Opal is 1.98-2.25.