Bustamite and Diaspore Physical Properties
Tenacity
Not Available
Very brittle
Solubility
Partly soluble in HCl.
insoluble
Durability
Not Available
Not Available
Specific Gravity
3.32-3.43
3.30-3.40
Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Conchoidal, Brittle, Conchoidal
Cleavage
{100} perfect; {110} and {1 1 0} good; {010} poor
{010} perfect, {110} distinct, {100} in traces
Mohs Hardness
5.5-6
6.5-7
Chemical Composition
(Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Bustamite and Diaspore Chemical Formula
While comparing Bustamite and Diaspore 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 Bustamite and Diaspore chemical formula.
- Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Diaspore- AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Bustamite and Diaspore Specific Gravity
Another important criteria for qualitative analysis of gemstones is Bustamite and Diaspore Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bustamite and Diaspore Optical Properties during the identification of gemstone. Specific gravity of Bustamite is 3.30-3.40 whereas that of Diaspore is 3.30-3.40.