Tourmaline and Phenakite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.85-3.35
2.90-2.98
Fracture
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001), Brittle
Cleavage
Indistinct
Distinct on {11 2 0}, imperfect on {10 1 1}
Mohs Hardness
7-7.5
7.5-8
Chemical Composition
Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Tourmaline and Phenakite Chemical Formula
While comparing Tourmaline 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 Tourmaline and Phenakite chemical formula.
- Chemical formula of Tourmaline- Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
- Chemical formula of Phenakite- Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Tourmaline and Phenakite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Tourmaline and Phenakite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tourmaline and Phenakite Optical Properties during the identification of gemstone. Specific gravity of Tourmaline is 2.90-2.98 whereas that of Phenakite is 2.90-2.98.