Sapphirine and Riebeckite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.40-3.58
3.28-3.44
Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Uneven
Uneven, Splintery, Brittle
Cleavage
{010} Perfect
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}
Mohs Hardness
7.5
5.0-6.0
Chemical Composition
(Al,Mg) 8(Al,Si) 6O 20Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Not Available
Sapphirine and Riebeckite Chemical Formula
While comparing Sapphirine and Riebeckite 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 Sapphirine and Riebeckite chemical formula.
- Chemical formula of Sapphirine- (Al,Mg) 8(Al,Si) 6O 20Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
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Sapphirine and Riebeckite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sapphirine and Riebeckite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sapphirine and Riebeckite Optical Properties during the identification of gemstone. Specific gravity of Sapphirine is 3.28-3.44 whereas that of Riebeckite is 3.28-3.44.