Caledonite and Amethyst Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
insoluble in common solvents
Durability
Not Available
Not Available
Specific Gravity
5.6-5.76
2.65
Fracture
Uneven, UnevenAnthony et al, Handbook of mineralogy (2001)
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
Cleavage
[001] perfect; [100] distinct
Indiscernible
Chemical Composition
Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)
SiO2
Caledonite and Amethyst Chemical Formula
While comparing Caledonite and Amethyst 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 Amethyst 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 Amethyst- SiO2
Caledonite and Amethyst Specific Gravity
Another important criteria for qualitative analysis of gemstones is Caledonite and Amethyst Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Caledonite and Amethyst Optical Properties during the identification of gemstone. Specific gravity of Caledonite is 2.65 whereas that of Amethyst is 2.65.