Purpurite and Schorl Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.2-3.4
3.18-3.22
Fracture
Uneven, UnevenArthur Thomas, Gemstones (2009), Brittle
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Cleavage
[100] [001] perfect
{1011} Indistinct
Mohs Hardness
4-4.5
Not Available
Chemical Composition
MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references
Na(Fe2+3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Purpurite and Schorl Chemical Formula
While comparing Purpurite and Schorl 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 Purpurite and Schorl chemical formula.
- Chemical formula of Purpurite- MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references
- Chemical formula of Schorl- Na(Fe2+3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Purpurite and Schorl Specific Gravity
Another important criteria for qualitative analysis of gemstones is Purpurite and Schorl Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Purpurite and Schorl Optical Properties during the identification of gemstone. Specific gravity of Purpurite is 3.18-3.22 whereas that of Schorl is 3.18-3.22.