Rock Crystal and Realgar Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.65
  
3.56
  
Fracture
ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001)
  
(e.g. graphite).
  
Cleavage
Not Available
  
{010} Good
  
Mohs Hardness
7
  
Not Available
  
Chemical Composition
SiO 2Walter Schumann , Gemstones of the world (2001)
  
AsSMichael OâDonoghue , Gems, Sixth Edition (2006)
  
Rock Crystal and Realgar Chemical Formula
While comparing Rock Crystal and Realgar 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 Realgar chemical formula.
- Chemical formula of Rock Crystal- SiO 2Walter Schumann , Gemstones of the world (2001)
- Chemical formula of Realgar- AsSMichael OâDonoghue , Gems, Sixth Edition (2006)
Rock Crystal and Realgar Specific Gravity
Another important criteria for qualitative analysis of gemstones is Rock Crystal and Realgar Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rock Crystal and Realgar Optical Properties during the identification of gemstone. Specific gravity of Rock Crystal is 3.56 whereas that of Realgar is 3.56.