Properties

Unit Value
SiO2 %   99.70 %     (+_ 00.20%)
Fe2O3% 00.04%   (max)
Al2O3% 00.12%   (+_ 00.05%)
Cr2O3% 0.00040 (max)
TiO2%   0.016
LOI % 0.17

                            

  • Refractive index – 1.544 – 1.553 – DR+ 0.009 (B-G Interval)
  • Specific gravity   -- 2.65 constant; variable in impure varieties
  • Melting point   -- 1650 ( = 75) OC
  • Streak – White
  • Boiling point --   2230C
  • Crystal system --   Trigonal
  • Solubility -- H20 Insoluble
  • Packing : 50kgs/1000kgs/Lumps
  • Shipment: by container/bulk