Thulite and Vlasovite Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Nearly insoluble in HCl and HNO3
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.1
  
2.97
  
Fracture
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
  
Conchoidal, Brittle
  
Cleavage
Perfect {010} imperfect {100}
  
Distinct on {010}
  
Mohs Hardness
6-7
  
6
  
Chemical Composition
Ca2Al3(SiO4)3(OH)
  
Not Available
  
Thulite and Vlasovite Chemical Formula
While comparing Thulite and Vlasovite 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 Vlasovite chemical formula.
- Chemical formula of Thulite- Ca2Al3(SiO4)3(OH)
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Thulite and Vlasovite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Thulite and Vlasovite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Thulite and Vlasovite Optical Properties during the identification of gemstone. Specific gravity of Thulite is 2.97 whereas that of Vlasovite is 2.97.