Caledonite and Phenakite Physical Properties
Specific Gravity
5.6-5.76
2.90-2.98
Fracture
Uneven
Conchoidal, ConchoidalWalter Schumann
Cleavage
[001] perfect; [100] distinct
Distinct on {11 2 0}, imperfect on {10 1 1}
Mohs Hardness
2.5-3
7.5-8
Chemical Composition
Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)
Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Caledonite and Phenakite Chemical Formula
While comparing Caledonite 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 Caledonite and Phenakite chemical formula.
- Chemical formula of Caledonite- Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)
- Chemical formula of Phenakite- Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Caledonite and Phenakite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Caledonite and Phenakite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Caledonite and Phenakite Optical Properties during the identification of gemstone. Specific gravity of Caledonite is 2.90-2.98 whereas that of Phenakite is 2.90-2.98.