Covellite and Hollandite Physical Properties
Tenacity
Flexible
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
4.6-4.76
5.05
Fracture
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
Brittle, Metallic
Cleavage
Perfect on {0001}
Distinct / Good, Prismatic
Mohs Hardness
Not Available
4-6
Chemical Composition
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Ba(Mn++++,Mn++)8O16
Covellite and Hollandite Chemical Formula
While comparing Covellite and Hollandite 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 Covellite and Hollandite chemical formula.
- Chemical formula of Covellite- CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
- Chemical formula of Hollandite- Ba(Mn++++,Mn++)8O16
Covellite and Hollandite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Covellite and Hollandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Covellite and Hollandite Optical Properties during the identification of gemstone. Specific gravity of Covellite is 5.05 whereas that of Hollandite is 5.05.