Emerald and Lepidolite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Hard
  
Not Available
  
Specific Gravity
2.67-2.78
  
2.80-2.90
  
Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
  
Uneven, UnevenArthur Thomas, Gemstones (2009)
  
Cleavage
Imperfect on the [0001]
  
{001} perfect
  
Mohs Hardness
7.5-8
  
2.5
  
Chemical Composition
Be3Al2SiO6
  
Mg 3Si 4O 10(OH) 2Ulrich Henn and Claudio C.
  
Emerald and Lepidolite Chemical Formula
While comparing Emerald and Lepidolite 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 Emerald and Lepidolite chemical formula.
- Chemical formula of Emerald- Be3Al2SiO6
- Chemical formula of Lepidolite- Mg 3Si 4O 10(OH) 2Ulrich Henn and Claudio C.
Emerald and Lepidolite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Emerald and Lepidolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Emerald and Lepidolite Optical Properties during the identification of gemstone. Specific gravity of Emerald is 2.80-2.90 whereas that of Lepidolite is 2.80-2.90.
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