Schorl and Emerald Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Hard
Specific Gravity
3.18-3.22
2.67-2.78
Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
Cleavage
{1011} Indistinct
Imperfect on the [0001]
Mohs Hardness
Not Available
7.5-8
Chemical Composition
Na(Fe2+3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Be3Al2SiO6
Schorl and Emerald Chemical Formula
While comparing Schorl and Emerald 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 Emerald 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 Emerald- Be3Al2SiO6
Schorl and Emerald Specific Gravity
Another important criteria for qualitative analysis of gemstones is Schorl and Emerald Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Schorl and Emerald Optical Properties during the identification of gemstone. Specific gravity of Schorl is 2.67-2.78 whereas that of Emerald is 2.67-2.78.