Pearl and Purpurite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.60-2.85
3.2-3.4
Fracture
Gemstones of the world (2001), UnevenWalter Schumann, Gemstones of the world (2001)
Uneven, UnevenArthur Thomas, Gemstones (2009), Brittle
Cleavage
none
[100] [001] perfect
Mohs Hardness
2.5-4.5
4-4.5
Chemical Composition
Not Available
MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references
Pearl and Purpurite Chemical Formula
While comparing Pearl 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 Pearl and Purpurite chemical formula.
>- Chemical formula of Purpurite- MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references
Pearl and Purpurite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pearl and Purpurite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pearl and Purpurite Optical Properties during the identification of gemstone. Specific gravity of Pearl is 3.2-3.4 whereas that of Purpurite is 3.2-3.4.