Polyhalite and Moss Agate Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Soluble
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.78
  
2.58-2.64
  
Fracture
Conchoidal, Brittle
  
Not Available
  
Cleavage
Perfect on {10 1 }; parting on {010}
  
Not Available
  
Mohs Hardness
3.5
  
6.5-7
  
Chemical Composition
Not Available
  
SiO 2Walter Schumann , Gemstones of the world (2001)
  
Polyhalite and Moss Agate Chemical Formula
While comparing Polyhalite and Moss Agate 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 Polyhalite and Moss Agate chemical formula.
>- Chemical formula of Moss Agate- SiO 2Walter Schumann , Gemstones of the world (2001)
Polyhalite and Moss Agate Specific Gravity
Another important criteria for qualitative analysis of gemstones is Polyhalite and Moss Agate Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Polyhalite and Moss Agate Optical Properties during the identification of gemstone. Specific gravity of Polyhalite is 2.58-2.64 whereas that of Moss Agate is 2.58-2.64.