Sellaite and Glass Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.14-3.16
  
2.39-4.00
  
Fracture
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle
  
ConchoidalGemdat.org, Management Team (2012), ConchoidalGemdat.org, Management Team (2012)
  
Cleavage
Perfect on {010} and {110}
  
Not Available
  
Mohs Hardness
5-5.5
  
4-6
  
Chemical Composition
MgF 2Ulrich Henn and Claudio C.
  
Not Available
  
Sellaite and Glass Chemical Formula
While comparing Sellaite and Glass 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 Sellaite and Glass chemical formula.
- Chemical formula of Sellaite- MgF 2Ulrich Henn and Claudio C.
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Sellaite and Glass Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sellaite and Glass Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sellaite and Glass Optical Properties during the identification of gemstone. Specific gravity of Sellaite is 2.39-4.00 whereas that of Glass is 2.39-4.00.