Ludlamite and Hurlbutite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.1-3.2
  
2.90
  
Fracture
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)
  
ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
  
Cleavage
Vitreous, pearly on cleavage
  
None
  
Mohs Hardness
3-4
  
6
  
Chemical Composition
(Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
CaBe 2(PO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Ludlamite and Hurlbutite Chemical Formula
While comparing Ludlamite and Hurlbutite 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 Ludlamite and Hurlbutite chemical formula.
- Chemical formula of Ludlamite- (Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Hurlbutite- CaBe 2(PO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Ludlamite and Hurlbutite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Ludlamite and Hurlbutite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ludlamite and Hurlbutite Optical Properties during the identification of gemstone. Specific gravity of Ludlamite is 2.90 whereas that of Hurlbutite is 2.90.