Grandidierite and Albite Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.85-3.00
  
2.60-2.65
  
Fracture
Brittle, UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven
  
Uneven, Uneven, Gems, Sixth Edition (2006), Uneven, Conchoidal
  
Cleavage
Perfect
  
Perfect on {001}, very good on {010}, imperfect on {110}
  
Mohs Hardness
7.5
  
6-6.5
  
Chemical Composition
(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
  
NaAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Grandidierite and Albite Chemical Formula
While comparing Grandidierite and Albite 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 Albite chemical formula.
- Chemical formula of Grandidierite- (Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
- Chemical formula of Albite- NaAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Grandidierite and Albite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Grandidierite and Albite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Grandidierite and Albite Optical Properties during the identification of gemstone. Specific gravity of Grandidierite is 2.60-2.65 whereas that of Albite is 2.60-2.65.