Thomsonite and Black Opal Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.25-2.40
1.97-2.22
Fracture
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
perfect on {010}; good on {100}
Not Available
Mohs Hardness
5-5.5
6-6.5
Chemical Composition
NaCa 2Al 5Si 5O 20 · 6H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
SiO 2 + H 2OUlrich Henn and Claudio C.
Thomsonite and Black Opal Chemical Formula
While comparing Thomsonite and Black 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 Thomsonite and Black Opal chemical formula.
- Chemical formula of Thomsonite- NaCa 2Al 5Si 5O 20 · 6H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Black Opal- SiO 2 + H 2OUlrich Henn and Claudio C.
Thomsonite and Black Opal Specific Gravity
Another important criteria for qualitative analysis of gemstones is Thomsonite and Black Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Thomsonite and Black Opal Optical Properties during the identification of gemstone. Specific gravity of Thomsonite is 1.97-2.22 whereas that of Black Opal is 1.97-2.22.