Schorl and Verdite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.18-3.22
2.80-3.0
Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Not Available
Cleavage
{1011} Indistinct
{110} Good
Mohs Hardness
Not Available
3
Chemical Composition
Na(Fe2+3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
NaFeS2•2(H2O)
Schorl and Verdite Chemical Formula
While comparing Schorl and Verdite 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 Verdite 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 Verdite- NaFeS2•2(H2O)
Schorl and Verdite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Schorl and Verdite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Schorl and Verdite Optical Properties during the identification of gemstone. Specific gravity of Schorl is 2.80-3.0 whereas that of Verdite is 2.80-3.0.