Herderite and Catapleiite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.90-3.02
  
2.72
  
Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
  
Brittle, Metallic, Brittle, Metallic
  
Cleavage
Indistinct on {110}
  
{110} Perfect, {010} Perfect
  
Mohs Hardness
5-5.5
  
5-6
  
Chemical Composition
CaBePO 4(F,OH)Ulrich Henn and Claudio C.
  
Na 2ZrSi 3O 9 · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
  
Herderite and Catapleiite Chemical Formula
While comparing Herderite and Catapleiite 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 Catapleiite chemical formula.
- Chemical formula of Herderite- CaBePO 4(F,OH)Ulrich Henn and Claudio C.
- Chemical formula of Catapleiite- Na 2ZrSi 3O 9 · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
Herderite and Catapleiite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Herderite and Catapleiite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Herderite and Catapleiite Optical Properties during the identification of gemstone. Specific gravity of Herderite is 2.72 whereas that of Catapleiite is 2.72.