Chrysoprase and Purpurite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.58-2.64
3.2-3.4
Fracture
Gems, Sixth Edition (2006)
Uneven, UnevenArthur Thomas, Gemstones (2009), Brittle
Cleavage
None
[100] [001] perfect
Mohs Hardness
6.5-7
4-4.5
Chemical Composition
SiO2 (with a high level of nickel impurities )
MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references
Chrysoprase and Purpurite Chemical Formula
While comparing Chrysoprase 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 Chrysoprase and Purpurite chemical formula.
- Chemical formula of Chrysoprase- SiO2 (with a high level of nickel impurities )
- Chemical formula of Purpurite- MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references
Chrysoprase and Purpurite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Chrysoprase and Purpurite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chrysoprase and Purpurite Optical Properties during the identification of gemstone. Specific gravity of Chrysoprase is 3.2-3.4 whereas that of Purpurite is 3.2-3.4.