Londonite and Brucite Physical Properties
Tenacity
Not Available
  
Sectile
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.34
  
2.39
  
Fracture
ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
  
Irregular
  
Cleavage
None
  
Perfect on {0001}
  
Mohs Hardness
Not Available
  
2.5
  
Chemical Composition
(Cs,K,Rb)Al 4Be 4(B,Be) 12O 28Anthony et al , Handbook of mineralogy (2001)
  
Mg(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Londonite and Brucite Chemical Formula
While comparing Londonite 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 Londonite and Brucite chemical formula.
- Chemical formula of Londonite- (Cs,K,Rb)Al 4Be 4(B,Be) 12O 28Anthony et al , Handbook of mineralogy (2001)
- Chemical formula of Brucite- Mg(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Londonite and Brucite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Londonite and Brucite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Londonite and Brucite Optical Properties during the identification of gemstone. Specific gravity of Londonite is 2.39 whereas that of Brucite is 2.39.