Herderite and Papagoite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.90-3.02
3.25
Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Brittle, Metallic
Cleavage
Indistinct on {110}
Imperfect in one direction
Mohs Hardness
5-5.5
5-5.5
Chemical Composition
CaBePO 4(F,OH)Ulrich Henn and Claudio C.
CaCuAlSi 2O 6(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)
Herderite and Papagoite Chemical Formula
While comparing Herderite and Papagoite 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 Papagoite chemical formula.
- Chemical formula of Herderite- CaBePO 4(F,OH)Ulrich Henn and Claudio C.
- Chemical formula of Papagoite- CaCuAlSi 2O 6(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)
Herderite and Papagoite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Herderite and Papagoite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Herderite and Papagoite Optical Properties during the identification of gemstone. Specific gravity of Herderite is 3.25 whereas that of Papagoite is 3.25.