London blue topaz and Marialite Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
Not Available
  
2.50
  
Fracture
Not Available
  
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
  
Cleavage
Not Available
  
Distinct on {100} and {110}
  
Mohs Hardness
Not Available
  
5.5-6
  
Chemical Composition
Not Available
  
3NaAlSi 3O 8 · NaClAnthony et al , Handbook of mineralogy (2001)
  
London blue topaz and Marialite Chemical Formula
While comparing London blue topaz and Marialite 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 London blue topaz and Marialite chemical formula.
>- Chemical formula of Marialite- 3NaAlSi 3O 8 · NaClAnthony et al , Handbook of mineralogy (2001)
London blue topaz and Marialite Specific Gravity
Another important criteria for qualitative analysis of gemstones is London blue topaz and Marialite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use London blue topaz and Marialite Optical Properties during the identification of gemstone. Specific gravity of London blue topaz is 2.50 whereas that of Marialite is 2.50.