Purpurite and Caledonite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.2-3.4
5.6-5.76
Fracture
Uneven, UnevenArthur Thomas, Gemstones (2009), Brittle
Uneven, UnevenAnthony et al, Handbook of mineralogy (2001)
Cleavage
[100] [001] perfect
[001] perfect; [100] distinct
Mohs Hardness
4-4.5
2.5-3
Chemical Composition
MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references
Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)
Purpurite and Caledonite Chemical Formula
While comparing Purpurite and Caledonite 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 Caledonite chemical formula.
- Chemical formula of Purpurite- MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references
- Chemical formula of Caledonite- Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)
Purpurite and Caledonite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Purpurite and Caledonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Purpurite and Caledonite Optical Properties during the identification of gemstone. Specific gravity of Purpurite is 5.6-5.76 whereas that of Caledonite is 5.6-5.76.