Simpsonite and Purpurite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
Not Available
3.2-3.4
Fracture
ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
Uneven, UnevenArthur Thomas, Gemstones (2009), Brittle
Cleavage
None
[100] [001] perfect
Mohs Hardness
7-7.5
4-4.5
Chemical Composition
Al 4(Ta,Nb) 3(O,OH,F) 14Ulrich Henn and Claudio C.
MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references
Simpsonite and Purpurite Chemical Formula
While comparing Simpsonite and Purpurite 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 Simpsonite and Purpurite chemical formula.
- Chemical formula of Simpsonite- Al 4(Ta,Nb) 3(O,OH,F) 14Ulrich Henn and Claudio C.
- Chemical formula of Purpurite- MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references
Simpsonite and Purpurite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Simpsonite and Purpurite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Simpsonite and Purpurite Optical Properties during the identification of gemstone. Specific gravity of Simpsonite is 3.2-3.4 whereas that of Purpurite is 3.2-3.4.