Dravite and Fire Agate Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.03-3.18
  
2.60-2.64
  
Fracture
Uneven, Uneven, Irregular, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
  
Uneven, Splintery, Conchoidal, Uneven, Splintery, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
  
Cleavage
{???} Indistinct
  
Absent
  
Mohs Hardness
7-7.5
  
6.5-7
  
Chemical Composition
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
  
SiO 2Arthur Thomas , Gemstones (2009)
  
Dravite and Fire Agate Chemical Formula
While comparing Dravite and Fire Agate 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 Dravite and Fire Agate 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)
- Chemical formula of Fire Agate- SiO 2Arthur Thomas , Gemstones (2009)
Dravite and Fire Agate Specific Gravity
Another important criteria for qualitative analysis of gemstones is Dravite and Fire Agate Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dravite and Fire Agate Optical Properties during the identification of gemstone. Specific gravity of Dravite is 2.60-2.64 whereas that of Fire Agate is 2.60-2.64.