Herderite and Covellite Physical Properties
Tenacity
Not Available
Flexible
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.90-3.02
4.6-4.76
Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
Cleavage
Indistinct on {110}
Perfect on {0001}
Mohs Hardness
5-5.5
Not Available
Chemical Composition
CaBePO 4(F,OH)Ulrich Henn and Claudio C.
CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Herderite and Covellite Chemical Formula
While comparing Herderite 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 Herderite and Covellite chemical formula.
- Chemical formula of Herderite- CaBePO 4(F,OH)Ulrich Henn and Claudio C.
- Chemical formula of Covellite- CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references
Herderite and Covellite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Herderite and Covellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Herderite and Covellite Optical Properties during the identification of gemstone. Specific gravity of Herderite is 4.6-4.76 whereas that of Covellite is 4.6-4.76.