Crystal Quartz and Tourmaline Physical Properties
Tenacity
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Solubility
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Durability
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Specific Gravity
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2.85-3.35
  
Fracture
Not Available
  
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
  
Cleavage
Not Available
  
Indistinct
  
Mohs Hardness
7
  
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.
  
Crystal Quartz and Tourmaline Chemical Formula
While comparing Crystal Quartz 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 Crystal Quartz 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.
Crystal Quartz and Tourmaline Specific Gravity
Another important criteria for qualitative analysis of gemstones is Crystal Quartz and Tourmaline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Crystal Quartz and Tourmaline Optical Properties during the identification of gemstone. Specific gravity of Crystal Quartz is 2.85-3.35 whereas that of Tourmaline is 2.85-3.35.