Iolite and Amblygonite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.6-2.7
  
2.98-3.10
  
Fracture
Not Available
  
Sub-Conchoidal, Irregular/uneven, Sub-Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
  
Cleavage
3,1
  
[100] Perfect, [110] Good, [011] Distinct
  
Mohs Hardness
7-7.5
  
6
  
Chemical Composition
Mg2Al4Si5O18
  
(Li,Na)Al(PO 4)(F,OH)Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
  
Iolite and Amblygonite Chemical Formula
While comparing Iolite and Amblygonite 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 Iolite and Amblygonite chemical formula.
- Chemical formula of Iolite- Mg2Al4Si5O18
- Chemical formula of Amblygonite- (Li,Na)Al(PO 4)(F,OH)Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Iolite and Amblygonite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Iolite and Amblygonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Iolite and Amblygonite Optical Properties during the identification of gemstone. Specific gravity of Iolite is 2.98-3.10 whereas that of Amblygonite is 2.98-3.10.