Stones Quartz Silica, For Paints, Abrasives, Refractories, Precision Instruments., Classification : 16-30

we having our own mines in india. We can also produce all sizes of quartz as per buyer requirement.

quartz (silica): as a crystal, quartz is used as a semiprecious gem stone. Cryptocrystalline forms may also be gem stones: agate, jasper, onyx, carnelian, chalcedony, etc. Crystalline gem varieties include amethyst, citrine, rose quartz, smoky quartz, etc. Because of its piezoelectric properties quartz is used for pressure gauges, oscillators, resonators, and wave stabilizers; because of its ability to rotate the plane of polarization of light and its transparency in ultraviolet rays it is used in heat-ray lamps, prism, and spectrographic lenses. Used in the manufacture of glass, paints, abrasives, refractories, and precision instruments.

silica has many industrial applications in abrasives and polishes, in glass manufacture, fillers and extenders, silica brick manufacture, as a catalyst, in speciality coatings, cleansers, ceramics, electronics, optics and refractories, in ferro-silicon manufacture, rubber, and as a frac sand. Processing of silica of specific quality yields several types of speciality silicas. These include colloidal, fumed, fused, high purity ground, silica gel, and precipitated silica. Colloidal silica is mainly used as a high temperature binder for silicon wafer polishing and carbonless paper.

specification of quartz:

loss on ignition : 0.10 %

silica as sio2 : 99.8 %

aluminium oxide as al2o3 : nil

iron oxide as fe2o3 : 0.0005 %

cacium oxide as cao : nil

magnesium oxide as mgo : nil

titanium dioxide as tio2 : nil

manganese oxide as mno : nil

sodium oxide as na2o : 0.0011 %

potassium oxide as k2o : 0.0010 %

electrical conductivity : 8

main applications:

glass

jewelry

ceramic

paints

abrasives

refractories