Schorl and Andradite Garnet Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.18-3.22
3.8-3.9
Fracture
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Not Available
Cleavage
{1011} Indistinct
None
Mohs Hardness
Not Available
6.5-7.5
Chemical Composition
Na(Fe2+3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Ca3Fe3+2Si3O12
Schorl and Andradite Garnet Chemical Formula
While comparing Schorl and Andradite Garnet 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 Andradite Garnet 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 Andradite Garnet- Ca3Fe3+2Si3O12
Schorl and Andradite Garnet Specific Gravity
Another important criteria for qualitative analysis of gemstones is Schorl and Andradite Garnet Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Schorl and Andradite Garnet Optical Properties during the identification of gemstone. Specific gravity of Schorl is 3.8-3.9 whereas that of Andradite Garnet is 3.8-3.9.