Pectolite and Brucite Physical Properties
Tenacity
Brittle
  
Sectile
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.74-2.90
  
2.39
  
Fracture
Uneven, Gemstones (2009), Splintery
  
Irregular
  
Cleavage
Perfect on {100} and {001}
  
Perfect on {0001}
  
Mohs Hardness
4.5-5
  
2.5
  
Chemical Composition
Ca 2NaHSi 3O 9Ulrich Henn and Claudio C.
  
Mg(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Pectolite and Brucite Chemical Formula
While comparing Pectolite 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 Pectolite and Brucite chemical formula.
- Chemical formula of Pectolite- Ca 2NaHSi 3O 9Ulrich Henn and Claudio C.
- Chemical formula of Brucite- Mg(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Pectolite and Brucite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Pectolite and Brucite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pectolite and Brucite Optical Properties during the identification of gemstone. Specific gravity of Pectolite is 2.39 whereas that of Brucite is 2.39.