Quartz, widely distributed mineral of many varieties that consists primarily of silica, or silicon dioxide (SiO2). Large amounts of quartz sand (also known as silica sand) are used in the manufacture of glass and ceramics and for foundry molds in metal casting.
Crushed quartz is used as an abrasive in sandpaper, silica sand is employed in sandblasting, and sandstone is still used whole to make whetstones, millstones, and grindstones.
Silica glass (also called fused quartz) is used in optics to transmit ultraviolet light. Tubing and various vessels of fused quartz have important laboratory applications, and quartz fibers are employed in extremely sensitive weighing devices. Because of its piezoelectric property, a quartz plate can be used as a pressure gauge, as in depth-sounding apparatus.
Quartz is very resistant to both chemicals and heat. It is therefore often used as foundry sand. With a melting temperature higher than most metals, it can be used for the molds and cores of common foundry work. Refractory bricks are often made of quartz sand because of its high heat resistance.
Quartz sand has a high resistance to being crushed. In the petroleum industry, sand slurries are forced down oil and gas wells under very high pressures in a process known as hydraulic fracturing. The open fractures facilitate the flow of natural gas into the well bore.
Quartz crystals are used to make oscillators for watches, clocks, radios, televisions, electronic games, computers, cell phones, electronic meters, and GPS equipment.
Quartz makes an excellent gemstone.
Based on the application and customer requirement, quartz can be supplied in specified size. The three main variants are quartz powder, quartz lumps and quartz grits.
RandRock quartz lumps is chemical composition is tested using ICP-MS. These are typical maximum element concentration levels. Actual product levels will generally be 10% lower. In our quartz the SiO2 level is greater than 99.89% and alkaline content is less than 100 PPM.
Element PPM
SiO2 99.89%
Al2O3 < 50 PPM
Fe < 2 PPM
Ca < 6 PPM
Mg < 1 PPM
B < 2 PPM
Na < 12 PPM
P < 2 PPM
Li < 1 PPM
TiO2 < 2 PPM
Electrical Conductivity < 5 µS/cm
Our Glassy Quartz lumps is currently the one of only known high purity lump quartz available in large, chemically consistent quantities and is suitable for a wide range of high-tech applications, including the manufacture of High Purity Quartz Sand Manufacturing,Lighting,Optical Fibre,Solar crucibles, quartzware and tubing.
Element PPM
SiO2 99.89%
Al2O3 < 50 PPM
Fe < 2 PPM
Ca < 6 PPM
Mg < 1 PPM
B < 2 PPM
Na < 12 PPM
P < 2 PPM
Li < 1 PPM
TiO2 < 2 PPM
Electrical
Conductivity < 5 µS/cm
RANDROCK MINERALS (Quartz Division) delivers a range of high purity quartz products, tailored to customer chemistry and sizing specifications.
Our High Purity Lump Quartz beneficated from our Quartz Mines , is suitable for a wide range of high-tech applications, including the manufacture of Solar crucibles, Quartz ware and tubing.
Our quartz is currently the one of only known high purity lump quartz available in large, chemically consistent quantities.
Our high purity quartz feedstock allows producers to target the solar and semiconductor industry, achieving higher-purity, higher quality, end products, making significant cost savings on downstream purification.
Quartz is a chemical compound consisting of one part silicon and two parts oxygen. It is silicon dioxide (SiO2).
It is the most abundant mineral found at Earth's surface, and its unique properties make it one of the most useful natural substances.
Quartz is one of the most useful natural materials. Its usefulness can be linked to its physical and chemical properties. It has a hardness of seven on the Mohs Scale which makes it very durable. It is chemically inert in contact with most substances.
It has electrical properties and heat resistance that make it valuable in electronic products. Its luster, color, and diaphaneity make it useful as a gemstone and also in the making of glass.
Chemical formula :- SiO2
Application :
Different forms are also used as gemstones. Because it is a primary ingredient in sand it is also used to make glass & labware, silica brick, cement, and mortar. Ground quartz is used as an abrasive in stonecutting, sandblasting, and glass grinding.
Powdered quartz is used in making porcelain, scouring soaps, sandpaper, and wood fillers.
Chemical formula : SiO2
Colour : Pure form of this mineral is colour less, if impurities present then it is coloured
Structure : Sub angular, rhombohedral
Hardness on (on Mohâ??s scale) : 7
Specific gravity : 2.65
Bulk density(tapped) gms/cc : 165.5
Melting point : 2912 fahrehneit
Boiling point : 4000 fahrehneit
Ph balance : 7
Matter solubility in H2O : Insoluble
Refractive index : 1.544
Mesh : 250 mesh ( 65 micron) â?? 800 mesh (10 micron)
Average particle size(micron) : 3-11.3
Relative density : 130-430
Oil absorbtion ml/ 100 gm : 40
Brightness : 90-98 %
USES OF QUARTZ SILICA POWDER
In semi conductor industry, Silica powder is used to conduct reaction with hydrofluoric acid for engraving quartz.
Reaction of silica with lead oxide or sodium oxide is utilized to produce different grades of glass that includes borosilicate glass.
It is used as one of the key ingredients for micro chip in computer.
It acts as an additive for processing of plastics and rubber.
It is used as a powerful filler for producing construction material like concrete.
It is used for improving viscosity of coatings.
Useful for enhancing holding capacity of tire on wet surface.
You Will Receive 1 Piece Natural Clear Quartz Point.
Size about 60-80 mm
The stones are 100% natural so allow for imperfections which may include growth marks, please expect some slight variation in terms of color, texture, etc.
Crystal Towers are a great for Grids or Terrariums.
We are a mining company from India into export of natural Quartz mineral in various formats with quality specifications suitable for Quartz crucibles, Semi conductor industries , Solar applications, ceramic, Meal silicon industries , Ramming mass, Water Purification etc user industry categories from Origin. We export Glassy, Granular , Transparent etc., of High , Medium , low grade qualities of any volume as quartz lumps, Quartz powder , Quartz grits as per industry requirements.
We have own mining of Quartz and it products. All quality available with us.
We are from India & Dealing with all part/port of India. As per contact condition we deal with client. Because no compromising with quality as so depend on that we dealing and finalizing rates.
See Test certificates, Content which client requirement and as per sample make deal with US.
We are genuine supplier with manufacture of Quarts. We have all Testing facility with enough quantity supply. All Licence we have to supply FOB or CIF from India.
Thank you and give us positive reply.
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