Black Opal and Actinolite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
1.97-2.22
3.00
Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Uneven, UnevenArthur Thomas, Gemstones (2009), Splintery
Cleavage
Not Available
perfect along {110}.
Chemical Composition
SiO 2 + H 2OUlrich Henn and Claudio C.
Ca 2(Mg,Fe) 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.
Black Opal and Actinolite Chemical Formula
While comparing Black Opal and Actinolite 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 Black Opal and Actinolite chemical formula.
- Chemical formula of Black Opal- SiO 2 + H 2OUlrich Henn and Claudio C.
- Chemical formula of Actinolite- Ca 2(Mg,Fe) 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.
Black Opal and Actinolite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Black Opal and Actinolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Black Opal and Actinolite Optical Properties during the identification of gemstone. Specific gravity of Black Opal is 3.00 whereas that of Actinolite is 3.00.