Actinolite and Common Opal Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.00
1.98-2.50
Fracture
Uneven, UnevenArthur Thomas, Gemstones (2009), Splintery
Conchoidal, Conchoidal, Gemstones of the world (2001)
Cleavage
perfect along {110}.
Not Available
Mohs Hardness
5-6
5.5-6.5
Chemical Composition
Ca 2(Mg,Fe) 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
Actinolite and Common Opal Chemical Formula
While comparing Actinolite and Common 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 Actinolite and Common Opal chemical formula.
- Chemical formula of Actinolite- Ca 2(Mg,Fe) 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.
- Chemical formula of Common Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
Actinolite and Common Opal Specific Gravity
Another important criteria for qualitative analysis of gemstones is Actinolite and Common Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Actinolite and Common Opal Optical Properties during the identification of gemstone. Specific gravity of Actinolite is 1.98-2.50 whereas that of Common Opal is 1.98-2.50.