Grandidierite and Anorthoclase Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.85-3.00
  
2.56-2.62
  
Fracture
Brittle, UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven
  
Uneven, Uneven, Gems, Sixth Edition (2006)
  
Cleavage
Perfect
  
From the Greek for oblique and fracture, descriptive of the cleavage
  
Mohs Hardness
7.5
  
6-6.5
  
Chemical Composition
(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
  
(Na,K)AlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Grandidierite and Anorthoclase Chemical Formula
While comparing Grandidierite and Anorthoclase 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 Grandidierite and Anorthoclase chemical formula.
- Chemical formula of Grandidierite- (Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
- Chemical formula of Anorthoclase- (Na,K)AlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Grandidierite and Anorthoclase Specific Gravity
Another important criteria for qualitative analysis of gemstones is Grandidierite and Anorthoclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Grandidierite and Anorthoclase Optical Properties during the identification of gemstone. Specific gravity of Grandidierite is 2.56-2.62 whereas that of Anorthoclase is 2.56-2.62.