Lepidolite and Kyanite Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.80-2.90
  
3.53-3.65
  
Fracture
Uneven, UnevenArthur Thomas, Gemstones (2009)
  
Splintery, Brittle, Metallic
  
Cleavage
{001} perfect
  
[100] perfect [010] imperfect with 79° angle between
  
Mohs Hardness
2.5
  
4-7
  
Chemical Composition
Mg 3Si 4O 10(OH) 2Ulrich Henn and Claudio C.
  
Not Available
  
Lepidolite and Kyanite Chemical Formula
While comparing Lepidolite and Kyanite 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 Kyanite chemical formula.
- Chemical formula of Lepidolite- Mg 3Si 4O 10(OH) 2Ulrich Henn and Claudio C.
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Lepidolite and Kyanite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Lepidolite and Kyanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lepidolite and Kyanite Optical Properties during the identification of gemstone. Specific gravity of Lepidolite is 3.53-3.65 whereas that of Kyanite is 3.53-3.65.