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