Schorl and Sunstone Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.18-3.22
2.62-2.65
Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Gemstones of the world (2001)
Cleavage
{1011} Indistinct
001
Mohs Hardness
Not Available
6
Chemical Composition
Na(Fe2+3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Microcline: KAlSi3O8 Oligoclase: (Na,Ca)Al1-2Si3-2O8
Schorl and Sunstone Chemical Formula
While comparing Schorl and Sunstone 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 Sunstone 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 Sunstone- Microcline: KAlSi3O8 Oligoclase: (Na,Ca)Al1-2Si3-2O8
Schorl and Sunstone Specific Gravity
Another important criteria for qualitative analysis of gemstones is Schorl and Sunstone Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Schorl and Sunstone Optical Properties during the identification of gemstone. Specific gravity of Schorl is 2.62-2.65 whereas that of Sunstone is 2.62-2.65.