Caledonite and Hiddenite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
5.6-5.76
  
3.15-3.21
  
Fracture
Uneven, UnevenAnthony et al, Handbook of mineralogy (2001)
  
Gemstones of the world (2001), UnevenWalter Schumann, Gemstones of the world (2001)
  
Cleavage
[001] perfect; [100] distinct
  
1,2 prismatic
  
Mohs Hardness
2.5-3
  
6-7
  
Chemical Composition
Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)
  
LiAlSi2O6
  
Caledonite and Hiddenite Chemical Formula
While comparing Caledonite and Hiddenite 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 Hiddenite 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 Hiddenite- LiAlSi2O6
Caledonite and Hiddenite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Caledonite and Hiddenite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Caledonite and Hiddenite Optical Properties during the identification of gemstone. Specific gravity of Caledonite is 3.15-3.21 whereas that of Hiddenite is 3.15-3.21.