Star Sapphire and Thomsonite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.90-4.05
2.25-2.40
Fracture
Not Available
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)
Cleavage
Not Available
perfect on {010}; good on {100}
Mohs Hardness
Not Available
5-5.5
Chemical Composition
Al 2O 3Ulrich Henn and Claudio C.
NaCa 2Al 5Si 5O 20 · 6H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Star Sapphire and Thomsonite Chemical Formula
While comparing Star Sapphire and Thomsonite 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 Star Sapphire and Thomsonite chemical formula.
- Chemical formula of Star Sapphire- Al 2O 3Ulrich Henn and Claudio C.
- Chemical formula of Thomsonite- NaCa 2Al 5Si 5O 20 · 6H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Star Sapphire and Thomsonite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Star Sapphire and Thomsonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Star Sapphire and Thomsonite Optical Properties during the identification of gemstone. Specific gravity of Star Sapphire is 2.25-2.40 whereas that of Thomsonite is 2.25-2.40.