Chalcedony and Caledonite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Soluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.55-2.70
5.6-5.76
Fracture
Uneven, Splintery, Conchoidal, Uneven, Splintery, Conchoidal, UnevenWalter Schumann
Uneven, UnevenAnthony et al, Handbook of mineralogy (2001)
Cleavage
Absent
[001] perfect; [100] distinct
Mohs Hardness
6.5-7
2.5-3
Chemical Composition
SiO2
Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)
Chalcedony and Caledonite Chemical Formula
While comparing Chalcedony 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 Chalcedony and Caledonite chemical formula.
- Chemical formula of Chalcedony- SiO2
- Chemical formula of Caledonite- Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)
Chalcedony and Caledonite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Chalcedony and Caledonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chalcedony and Caledonite Optical Properties during the identification of gemstone. Specific gravity of Chalcedony is 5.6-5.76 whereas that of Caledonite is 5.6-5.76.