Purpurite and Brucite Physical Properties
Tenacity
Not Available
  
Sectile
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.2-3.4
  
2.39
  
Fracture
Uneven, UnevenArthur Thomas, Gemstones (2009), Brittle
  
Irregular
  
Cleavage
[100] [001] perfect
  
Perfect on {0001}
  
Mohs Hardness
4-4.5
  
2.5
  
Chemical Composition
MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references
  
Mg(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Purpurite and Brucite Chemical Formula
While comparing Purpurite and Brucite 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 Purpurite and Brucite chemical formula.
- Chemical formula of Purpurite- MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references
- Chemical formula of Brucite- Mg(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Purpurite and Brucite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Purpurite and Brucite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Purpurite and Brucite Optical Properties during the identification of gemstone. Specific gravity of Purpurite is 2.39 whereas that of Brucite is 2.39.