Herderite and Chiastolite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.90-3.02
3.00-3.15
Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Not Available
Cleavage
Indistinct on {110}
Not Available
Mohs Hardness
5-5.5
5-5.5
Chemical Composition
CaBePO 4(F,OH)Ulrich Henn and Claudio C.
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006)
Herderite and Chiastolite Chemical Formula
While comparing Herderite and Chiastolite 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 Chiastolite chemical formula.
- Chemical formula of Herderite- CaBePO 4(F,OH)Ulrich Henn and Claudio C.
- Chemical formula of Chiastolite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006)
Herderite and Chiastolite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Herderite and Chiastolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Herderite and Chiastolite Optical Properties during the identification of gemstone. Specific gravity of Herderite is 3.00-3.15 whereas that of Chiastolite is 3.00-3.15.