Bustamite and Cinnabar Physical Properties
Tenacity
Not Available
Slightly sectile
Solubility
Partly soluble in HCl.
1.04 x 10−25 g per 100 ml water (Ksp at 25°C = 2 x 10−32)
Durability
Not Available
Not Available
Specific Gravity
3.32-3.43
2
Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Uneven, Uneven, Gemstones (2009), Brittle
Cleavage
{100} perfect; {110} and {1 1 0} good; {010} poor
Prismatic {10 1 0}, perfect
Mohs Hardness
5.5-6
2-2.5
Chemical Composition
(Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Bustamite and Cinnabar Chemical Formula
While comparing Bustamite and Cinnabar 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 Cinnabar chemical formula.
- Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Cinnabar- HgSMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Bustamite and Cinnabar Specific Gravity
Another important criteria for qualitative analysis of gemstones is Bustamite and Cinnabar Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bustamite and Cinnabar Optical Properties during the identification of gemstone. Specific gravity of Bustamite is 2 whereas that of Cinnabar is 2.