Sapphire and Danburite Physical Properties
Tenacity
Not Available
Brittle
Solubility
insoluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.95-4.03
2.97-3.03
Fracture
Uneven, Uneven, Gems, Sixth Edition (2006)
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
Cleavage
None, but may exhibit parting
{001} Poor
Chemical Composition
Al 2 O 3
CaB 2(SiO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Sapphire and Danburite Chemical Formula
While comparing Sapphire and Danburite 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 Sapphire and Danburite chemical formula.
- Chemical formula of Sapphire- Al 2 O 3
- Chemical formula of Danburite- CaB 2(SiO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Sapphire and Danburite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sapphire and Danburite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sapphire and Danburite Optical Properties during the identification of gemstone. Specific gravity of Sapphire is 2.97-3.03 whereas that of Danburite is 2.97-3.03.
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