Ammolite and Dravite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.75-2.80
  
3.03-3.18
  
Fracture
Uneven, Granular
  
Uneven, Uneven, Irregular, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
  
Cleavage
no true cleavage
  
{???} Indistinct
  
Mohs Hardness
4
  
7-7.5
  
Chemical Composition
Not Available
  
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
  
Ammolite and Dravite Chemical Formula
While comparing Ammolite and Dravite 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 Ammolite and Dravite chemical formula.
>- Chemical formula of Dravite- Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Ammolite and Dravite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Ammolite and Dravite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ammolite and Dravite Optical Properties during the identification of gemstone. Specific gravity of Ammolite is 3.03-3.18 whereas that of Dravite is 3.03-3.18.