Phenakite and Prehnite Physical Properties
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.90-2.98
2.80-2.95
Fracture
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001), Brittle
Uneven, Yellow, White, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic
Cleavage
Distinct on {11 2 0}, imperfect on {10 1 1}
Distinct on [001]
Mohs Hardness
7.5-8
6-6.5
Chemical Composition
Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Ca2Al2Si3O12(OH)
Phenakite and Prehnite Chemical Formula
While comparing Phenakite and Prehnite 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 Prehnite chemical formula.
- Chemical formula of Phenakite- Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Prehnite- Ca2Al2Si3O12(OH)
Phenakite and Prehnite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Phenakite and Prehnite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Phenakite and Prehnite Optical Properties during the identification of gemstone. Specific gravity of Phenakite is 2.80-2.95 whereas that of Prehnite is 2.80-2.95.