Sunstone and Purpurite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.62-2.65
3.2-3.4
Fracture
Gemstones of the world (2001)
Uneven, UnevenArthur Thomas, Gemstones (2009), Brittle
Cleavage
001
[100] [001] perfect
Chemical Composition
Microcline: KAlSi3O8 Oligoclase: (Na,Ca)Al1-2Si3-2O8
MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references
Sunstone and Purpurite Chemical Formula
While comparing Sunstone 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 Sunstone and Purpurite chemical formula.
- Chemical formula of Sunstone- Microcline: KAlSi3O8 Oligoclase: (Na,Ca)Al1-2Si3-2O8
- Chemical formula of Purpurite- MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references
Sunstone and Purpurite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sunstone and Purpurite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sunstone and Purpurite Optical Properties during the identification of gemstone. Specific gravity of Sunstone is 3.2-3.4 whereas that of Purpurite is 3.2-3.4.