Caledonite and Milarite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
5.6-5.76
  
2.52-2.60
  
Fracture
Uneven, UnevenAnthony et al, Handbook of mineralogy (2001)
  
Uneven, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Metallic
  
Cleavage
[001] perfect; [100] distinct
  
{0001} Imperfect, {1120} Imperfect
  
Mohs Hardness
2.5-3
  
5.5-6
  
Chemical Composition
Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)
  
KCa 2AlBe 2Si 12O 30 · 0.5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Caledonite and Milarite Chemical Formula
While comparing Caledonite and Milarite 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 Milarite 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 Milarite- KCa 2AlBe 2Si 12O 30 · 0.5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Caledonite and Milarite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Caledonite and Milarite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Caledonite and Milarite Optical Properties during the identification of gemstone. Specific gravity of Caledonite is 2.52-2.60 whereas that of Milarite is 2.52-2.60.