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