Obsidian and Phenakite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.35-2.60
2.90-2.98
Fracture
Conchoidal, ConchoidalWalter Schumann, Conchoidal
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001), Brittle
Cleavage
Not Available
Distinct on {11 2 0}, imperfect on {10 1 1}
Mohs Hardness
5-5.5
7.5-8
Chemical Composition
Not Available
Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Obsidian and Phenakite Chemical Formula
While comparing Obsidian and Phenakite 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 Obsidian and Phenakite chemical formula.
>- Chemical formula of Phenakite- Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Obsidian and Phenakite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Obsidian and Phenakite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Obsidian and Phenakite Optical Properties during the identification of gemstone. Specific gravity of Obsidian is 2.90-2.98 whereas that of Phenakite is 2.90-2.98.