Caledonite and Dumortierite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
5.6-5.76
3.26-3.41
Fracture
Uneven, UnevenAnthony et al, Handbook of mineralogy (2001)
Fibrous, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
Cleavage
[001] perfect; [100] distinct
Distinct on {100}, poor on {110}; parting on {001}
Mohs Hardness
2.5-3
7-8.5
Chemical Composition
Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)
AlAl6O3BSi3O18
Caledonite and Dumortierite Chemical Formula
While comparing Caledonite and Dumortierite 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 Caledonite and Dumortierite chemical formula.
- Chemical formula of Caledonite- Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)
- Chemical formula of Dumortierite- AlAl6O3BSi3O18
Caledonite and Dumortierite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Caledonite and Dumortierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Caledonite and Dumortierite Optical Properties during the identification of gemstone. Specific gravity of Caledonite is 3.26-3.41 whereas that of Dumortierite is 3.26-3.41.