Caledonite and Bustamite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Partly soluble in HCl.
Durability
Not Available
Not Available
Specific Gravity
5.6-5.76
3.32-3.43
Fracture
Uneven, UnevenAnthony et al, Handbook of mineralogy (2001)
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
[001] perfect; [100] distinct
{100} perfect; {110} and {1 1 0} good; {010} poor
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)
(Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Caledonite and Bustamite Chemical Formula
While comparing Caledonite and Bustamite 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 Bustamite 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 Bustamite- (Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Caledonite and Bustamite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Caledonite and Bustamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Caledonite and Bustamite Optical Properties during the identification of gemstone. Specific gravity of Caledonite is 3.32-3.43 whereas that of Bustamite is 3.32-3.43.