Chalcedony and Bustamite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Soluble
Partly soluble in HCl.
Durability
Not Available
Not Available
Specific Gravity
2.55-2.70
3.32-3.43
Fracture
Uneven, Splintery, Conchoidal, Uneven, Splintery, Conchoidal, UnevenWalter Schumann
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
Absent
{100} perfect; {110} and {1 1 0} good; {010} poor
Mohs Hardness
6.5-7
5.5-6
Chemical Composition
SiO2
(Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chalcedony and Bustamite Chemical Formula
While comparing Chalcedony 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 Chalcedony and Bustamite chemical formula.
- Chemical formula of Chalcedony- SiO2
- Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chalcedony and Bustamite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Chalcedony and Bustamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chalcedony and Bustamite Optical Properties during the identification of gemstone. Specific gravity of Chalcedony is 3.32-3.43 whereas that of Bustamite is 3.32-3.43.