Purpurite and Riebeckite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.2-3.4
3.28-3.44
Fracture
Uneven, UnevenArthur Thomas, Gemstones (2009), Brittle
Uneven, Splintery, Brittle
Cleavage
[100] [001] perfect
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}
Mohs Hardness
4-4.5
5.0-6.0
Chemical Composition
MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references
Not Available
Purpurite and Riebeckite Chemical Formula
While comparing Purpurite and Riebeckite 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 Riebeckite chemical formula.
- Chemical formula of Purpurite- MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references
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Purpurite and Riebeckite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Purpurite and Riebeckite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Purpurite and Riebeckite Optical Properties during the identification of gemstone. Specific gravity of Purpurite is 3.28-3.44 whereas that of Riebeckite is 3.28-3.44.