Thulite and Ludlamite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.1
  
3.1-3.2
  
Fracture
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
  
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)
  
Cleavage
Perfect {010} imperfect {100}
  
Vitreous, pearly on cleavage
  
Mohs Hardness
6-7
  
3-4
  
Chemical Composition
Ca2Al3(SiO4)3(OH)
  
(Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Thulite and Ludlamite Chemical Formula
While comparing Thulite and Ludlamite 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 Thulite and Ludlamite chemical formula.
- Chemical formula of Thulite- Ca2Al3(SiO4)3(OH)
- Chemical formula of Ludlamite- (Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Thulite and Ludlamite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Thulite and Ludlamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Thulite and Ludlamite Optical Properties during the identification of gemstone. Specific gravity of Thulite is 3.1-3.2 whereas that of Ludlamite is 3.1-3.2.