Brucite and Lazurite Physical Properties
Tenacity
Sectile
  
Brittle
  
Solubility
Not Available
  
Soluble
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.39
  
2.75
  
Fracture
Irregular
  
Uneven, UnevenArthur Thomas, Gemstones (2009), Conchoidal, Brittle
  
Cleavage
Perfect on {0001}
  
Imperfect on {110}
  
Mohs Hardness
2.5
  
5.5
  
Chemical Composition
Mg(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
  
(Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.
  
Brucite and Lazurite Chemical Formula
While comparing Brucite and Lazurite 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 Brucite and Lazurite chemical formula.
- Chemical formula of Brucite- Mg(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Lazurite- (Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.
Brucite and Lazurite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Brucite and Lazurite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Brucite and Lazurite Optical Properties during the identification of gemstone. Specific gravity of Brucite is 2.75 whereas that of Lazurite is 2.75.