Phenakite and Riebeckite Physical Properties
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.90-2.98
3.28-3.44
Fracture
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001), Brittle
Uneven, Splintery, Brittle
Cleavage
Distinct on {11 2 0}, imperfect on {10 1 1}
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}
Mohs Hardness
7.5-8
5.0-6.0
Chemical Composition
Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Not Available
Phenakite and Riebeckite Chemical Formula
While comparing Phenakite 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 Phenakite and Riebeckite chemical formula.
- Chemical formula of Phenakite- Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
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Phenakite and Riebeckite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Phenakite and Riebeckite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Phenakite and Riebeckite Optical Properties during the identification of gemstone. Specific gravity of Phenakite is 3.28-3.44 whereas that of Riebeckite is 3.28-3.44.