Schorl and Prase Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.18-3.22
2.64-2.69
Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Gems, Sixth Edition (2006), Gems, Sixth Edition (2006)
Cleavage
{1011} Indistinct
Not Available
Mohs Hardness
Not Available
7
Chemical Composition
Na(Fe2+3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
SiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Schorl and Prase Chemical Formula
While comparing Schorl and Prase 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 Schorl and Prase chemical formula.
- Chemical formula of Schorl- Na(Fe2+3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
- Chemical formula of Prase- SiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Schorl and Prase Specific Gravity
Another important criteria for qualitative analysis of gemstones is Schorl and Prase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Schorl and Prase Optical Properties during the identification of gemstone. Specific gravity of Schorl is 2.64-2.69 whereas that of Prase is 2.64-2.69.