Herderite and Star Ruby Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.90-3.02
3.95-4.10
Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Uneven, Uneven, Gems, Sixth Edition (2006)
Cleavage
Indistinct on {110}
Not Available
Mohs Hardness
5-5.5
Not Available
Chemical Composition
CaBePO 4(F,OH)Ulrich Henn and Claudio C.
Al 2O 3Michael OâDonoghue , Gems, Sixth Edition (2006)
Herderite and Star Ruby Chemical Formula
While comparing Herderite and Star Ruby 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 Star Ruby chemical formula.
- Chemical formula of Herderite- CaBePO 4(F,OH)Ulrich Henn and Claudio C.
- Chemical formula of Star Ruby- Al 2O 3Michael OâDonoghue , Gems, Sixth Edition (2006)
Herderite and Star Ruby Specific Gravity
Another important criteria for qualitative analysis of gemstones is Herderite and Star Ruby Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Herderite and Star Ruby Optical Properties during the identification of gemstone. Specific gravity of Herderite is 3.95-4.10 whereas that of Star Ruby is 3.95-4.10.