Quartz Minerals
Name and Composition - Silicon dioxide: SiO2.
Physical Properties - Generally colourless, white to milky white (some varieties are coloured), transparent to opaque. The crystals are hexagonal prisms terminated by rhombohedra faces, prism faces are always striated perpendicular to their length. Lusture is vitreous, fracture conchoidal, hardness : 7, sp.gr. 2.65.
Mode of Occurrence - In the form of veins, reefs and also in pegmatites.
Uses - It is mainly used for glass making. The primary use of silica is in manufacturing of all types of glass wares, ceramics and ceramics glazes. It is also used for manufacturing refractories, silica bricks, ferro–sillicon and other ferro-alloys. It is used as flux in smelthing of base metal ores and as source of silicon metal. High quality quartz crystals are used in electronic devices, multiple telephonic system, depth sounding devices, range finders, chronometers etc.
Mineral based Industries – Glass and ceramic industries, pulverizing units.
Industrial Prospects – Glass and ceramic industries, pulverizing units.
Physical Properties
Hardness
Sp. gr.
Reflectance
Density
Sp. gr.
Reflectance
Density
7
2.65
88 - 97
2.65 g/cm3
2.65
88 - 97
2.65 g/cm3
Chemical Properties
Silica (SiO2)
Alumina (Al2O3)
Potassium Oxide (K2O)
Sodium Oxide (Na2O)
Calcium Oxide (CaO)
Ferric Oxide (Fe2O3)
Manesium Oxide (MgO)
Titanium Oxide (TiO2)
Loss on Ignition LOI (950oC)
Alumina (Al2O3)
Potassium Oxide (K2O)
Sodium Oxide (Na2O)
Calcium Oxide (CaO)
Ferric Oxide (Fe2O3)
Manesium Oxide (MgO)
Titanium Oxide (TiO2)
Loss on Ignition LOI (950oC)
99.80 - 99.96 %
0.06 - 0.07 %
< 0.015 %
< 0.015 %
< 50 PPM
< 0.01 %
< 30 PPM
< 0.01 %
< 0.10 %
0.06 - 0.07 %
< 0.015 %
< 0.015 %
< 50 PPM
< 0.01 %
< 30 PPM
< 0.01 %
< 0.10 %
Indian Minerals
Metallic Minerals
Cadmium Ore
Copper Ore
Lead Ore
Zinc Ore
Iron Ore
Manganese Ore
Tungsten Ore
Bauxite Ore
Limestone and Dolomite
Limestone
Dolomite
Fertilizer Minerals
Gypsum
Pyrite
Rock Phosphate
Saltpeter
Fuel Minerals
Lignite
Glass and Ceramic Minerals
Ball Clay
China Clay
Feldspar
Fire Clay
Kyanite
Quartz
Quartzite
Silica Sand
Precious and Semiprecious Minerals
Aquamarine
Emerald
Industrial Minerals
Asbestos
Barytes
Bentonite
Calcite
Fluorite
Fuller's Earth
Garnet
Graphite
Magnesite
Mica
Mill Stone
Ochre
Pyrophylite
Siliceous Earth
Silimanite
Soapstone
Vermiculite
Wollastonite
Dimensional and Building Stone
Granite
Limestone - Flaggy
Marble
Rhyolite
Sandstone
Serpentinite
Shale/Schist/Phyllite
Slate