Lepidolite and Topaz Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.80-2.90
  
3.49-3.57
  
Fracture
Uneven, UnevenArthur Thomas, Gemstones (2009)
  
Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
  
Cleavage
{001} perfect
  
[001] Perfect
  
Mohs Hardness
2.5
  
8
  
Chemical Composition
Mg 3Si 4O 10(OH) 2Ulrich Henn and Claudio C.
  
Al2SiO4(F,OH)2
  
Lepidolite and Topaz Chemical Formula
While comparing Lepidolite and Topaz 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 Lepidolite and Topaz chemical formula.
- Chemical formula of Lepidolite- Mg 3Si 4O 10(OH) 2Ulrich Henn and Claudio C.
- Chemical formula of Topaz- Al2SiO4(F,OH)2
Lepidolite and Topaz Specific Gravity
Another important criteria for qualitative analysis of gemstones is Lepidolite and Topaz Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lepidolite and Topaz Optical Properties during the identification of gemstone. Specific gravity of Lepidolite is 3.49-3.57 whereas that of Topaz is 3.49-3.57.