Herderite and Hexagonite Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.90-3.02
  
2.98-3.03
  
Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
  
Uneven
  
Cleavage
Indistinct on {110}
  
[110] perfect; [010] distinct
  
Mohs Hardness
5-5.5
  
5-6
  
Chemical Composition
CaBePO 4(F,OH)Ulrich Henn and Claudio C.
  
Ca 2Mg 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.
  
Herderite and Hexagonite Chemical Formula
While comparing Herderite and Hexagonite 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 Hexagonite chemical formula.
- Chemical formula of Herderite- CaBePO 4(F,OH)Ulrich Henn and Claudio C.
- Chemical formula of Hexagonite- Ca 2Mg 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.
Herderite and Hexagonite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Herderite and Hexagonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Herderite and Hexagonite Optical Properties during the identification of gemstone. Specific gravity of Herderite is 2.98-3.03 whereas that of Hexagonite is 2.98-3.03.