Stibiotantalite 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
{???} Perfect
[100] [001] perfect
Mohs Hardness
5.5-6
4-4.5
Chemical Composition
SbTaO 4Ulrich Henn and Claudio C.
MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references
Stibiotantalite and Purpurite Chemical Formula
While comparing Stibiotantalite 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 Stibiotantalite and Purpurite chemical formula.
- Chemical formula of Stibiotantalite- SbTaO 4Ulrich Henn and Claudio C.
- Chemical formula of Purpurite- MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references
Stibiotantalite and Purpurite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Stibiotantalite and Purpurite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Stibiotantalite and Purpurite Optical Properties during the identification of gemstone. Specific gravity of Stibiotantalite is 3.2-3.4 whereas that of Purpurite is 3.2-3.4.