Thulite and Mottramite Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Soluble
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.1
  
5.9
  
Fracture
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
  
Sub-Conchoidal, Brittle, Metallic
  
Cleavage
Perfect {010} imperfect {100}
  
None observed
  
Mohs Hardness
6-7
  
3
  
Chemical Composition
Ca2Al3(SiO4)3(OH)
  
Not Available
  
Thulite and Mottramite Chemical Formula
While comparing Thulite and Mottramite 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 Mottramite chemical formula.
- Chemical formula of Thulite- Ca2Al3(SiO4)3(OH)
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Thulite and Mottramite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Thulite and Mottramite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Thulite and Mottramite Optical Properties during the identification of gemstone. Specific gravity of Thulite is 5.9 whereas that of Mottramite is 5.9.