Phlogopite and Tourmaline Physical Properties
Tenacity
Tough
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.78-2.85
  
2.85-3.35
  
Fracture
None, Uneven
  
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
  
Cleavage
Perfect basal (001)
  
Indistinct
  
Mohs Hardness
2-2.5
  
7-7.5
  
Chemical Composition
Not Available
  
Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
  
Phlogopite and Tourmaline Chemical Formula
While comparing Phlogopite and Tourmaline 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 Phlogopite and Tourmaline chemical formula.
>- Chemical formula of Tourmaline- Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
Phlogopite and Tourmaline Specific Gravity
Another important criteria for qualitative analysis of gemstones is Phlogopite and Tourmaline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Phlogopite and Tourmaline Optical Properties during the identification of gemstone. Specific gravity of Phlogopite is 2.85-3.35 whereas that of Tourmaline is 2.85-3.35.