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