Rock Crystal and Andesine Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.65
  
2.65-2.69
  
Fracture
ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001)
  
Uneven, Uneven, Conchoidal, Uneven, Gems, Sixth Edition (2006)
  
Cleavage
Not Available
  
Perfect on {001}, good on {010}
  
Mohs Hardness
7
  
6-6.5
  
Chemical Composition
SiO 2Walter Schumann , Gemstones of the world (2001)
  
(Na,Ca)Al1-2Si3-2O8
  
Rock Crystal and Andesine Chemical Formula
While comparing Rock Crystal and Andesine 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 Rock Crystal and Andesine chemical formula.
- Chemical formula of Rock Crystal- SiO 2Walter Schumann , Gemstones of the world (2001)
- Chemical formula of Andesine- (Na,Ca)Al1-2Si3-2O8
Rock Crystal and Andesine Specific Gravity
Another important criteria for qualitative analysis of gemstones is Rock Crystal and Andesine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rock Crystal and Andesine Optical Properties during the identification of gemstone. Specific gravity of Rock Crystal is 2.65-2.69 whereas that of Andesine is 2.65-2.69.