Hurlbutite and Phlogopite Physical Properties
Tenacity
Not Available
  
Tough
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.90
  
2.78-2.85
  
Fracture
ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
  
None, Uneven
  
Cleavage
None
  
Perfect basal (001)
  
Mohs Hardness
6
  
2-2.5
  
Chemical Composition
CaBe 2(PO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Not Available
  
Hurlbutite and Phlogopite Chemical Formula
While comparing Hurlbutite and Phlogopite 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 Hurlbutite and Phlogopite chemical formula.
- Chemical formula of Hurlbutite- CaBe 2(PO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
>
Hurlbutite and Phlogopite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hurlbutite and Phlogopite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hurlbutite and Phlogopite Optical Properties during the identification of gemstone. Specific gravity of Hurlbutite is 2.78-2.85 whereas that of Phlogopite is 2.78-2.85.