Chrome Tourmaline and Bertrandite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.85-3.35
  
2.59-2.60
  
Fracture
ConchoidalArthur Thomas, Gemstones (2009)
  
Brittle, Metallic, Brittle, Metallic
  
Cleavage
3,2
  
{001} Perfect, {110} Distinct, {101} Distinct
  
Mohs Hardness
7-7.5
  
6-7
  
Chemical Composition
Tourmaline is a series of several different minerals with unique chemical formulas.
  
Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)
  
Chrome Tourmaline and Bertrandite Chemical Formula
While comparing Chrome Tourmaline and Bertrandite 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 Chrome Tourmaline and Bertrandite chemical formula.
- Chemical formula of Chrome Tourmaline- Tourmaline is a series of several different minerals with unique chemical formulas.
- Chemical formula of Bertrandite- Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)
Chrome Tourmaline and Bertrandite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Chrome Tourmaline and Bertrandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chrome Tourmaline and Bertrandite Optical Properties during the identification of gemstone. Specific gravity of Chrome Tourmaline is 2.59-2.60 whereas that of Bertrandite is 2.59-2.60.