Diaspore and Covellite Physical Properties
Tenacity
Very brittle
Flexible
Solubility
insoluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.30-3.40
4.6-4.76
Fracture
Conchoidal, Brittle, Conchoidal
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
Cleavage
{010} perfect, {110} distinct, {100} in traces
Perfect on {0001}
Mohs Hardness
6.5-7
Not Available
Chemical Composition
AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Diaspore and Covellite Chemical Formula
While comparing Diaspore and Covellite 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 Diaspore and Covellite chemical formula.
- Chemical formula of Diaspore- AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
- Chemical formula of Covellite- CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Diaspore and Covellite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Diaspore and Covellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Diaspore and Covellite Optical Properties during the identification of gemstone. Specific gravity of Diaspore is 4.6-4.76 whereas that of Covellite is 4.6-4.76.