Caledonite and Fibrolite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
5.6-5.76
  
3.14-3.25
  
Fracture
Uneven, UnevenAnthony et al, Handbook of mineralogy (2001)
  
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)
  
Cleavage
[001] perfect; [100] distinct
  
Not Available
  
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)
  
Al 2SiO 5Arthur Thomas , Gemstones (2009)
  
Caledonite and Fibrolite Chemical Formula
While comparing Caledonite and Fibrolite 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 Fibrolite 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 Fibrolite- Al 2SiO 5Arthur Thomas , Gemstones (2009)
Caledonite and Fibrolite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Caledonite and Fibrolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Caledonite and Fibrolite Optical Properties during the identification of gemstone. Specific gravity of Caledonite is 3.14-3.25 whereas that of Fibrolite is 3.14-3.25.