Hollandite and Bustamite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Partly soluble in HCl.
Durability
Not Available
Not Available
Specific Gravity
5.05
3.32-3.43
Fracture
Brittle, Metallic
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
Distinct / Good, Prismatic
{100} perfect; {110} and {1 1 0} good; {010} poor
Chemical Composition
Ba(Mn++++,Mn++)8O16
(Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Hollandite and Bustamite Chemical Formula
While comparing Hollandite 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 Hollandite and Bustamite chemical formula.
- Chemical formula of Hollandite- Ba(Mn++++,Mn++)8O16
- Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Hollandite and Bustamite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hollandite and Bustamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hollandite and Bustamite Optical Properties during the identification of gemstone. Specific gravity of Hollandite is 3.32-3.43 whereas that of Bustamite is 3.32-3.43.