Schorl and Thulite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.18-3.22
3.1
Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
{1011} Indistinct
Perfect {010} imperfect {100}
Mohs Hardness
Not Available
6-7
Chemical Composition
Na(Fe2+3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Ca2Al3(SiO4)3(OH)
Schorl and Thulite Chemical Formula
While comparing Schorl and Thulite 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 Thulite 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 Thulite- Ca2Al3(SiO4)3(OH)
Schorl and Thulite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Schorl and Thulite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Schorl and Thulite Optical Properties during the identification of gemstone. Specific gravity of Schorl is 3.1 whereas that of Thulite is 3.1.