The Telequartz Group of Mining Companies, founded by João Cosac in 1926, is

Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...

's largest, longest-established and best-qualified miner, processor and exporter of rock crystals. Working also with other minerals, the group is the largest exporter of quartz in the world nowadays. Brazil is estimated to have 53 Mmt of reserves representing 95% of the known world supply.

The company

Known as the most qualified mining group for its operational structure, with the largest rock crystals stocks of the world, and experience in processing and exporting this mineral, Telequartz is the world leader in quartz market, exporting tons to

Americas The Americas, which are sometimes collectively called America, are a landmass comprising the totality of North and South America. The Americas make up most of the land in Earth's Western Hemisphere and comprise the New World. Along with th ...

Europe Europe is a large peninsula conventionally considered a continent in its own right because of its great physical size and the weight of its history and traditions. Europe is also considered a Continent#Subcontinents, subcontinent of Eurasia ...

and

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. Having capitalist giants, like

Samsung The Samsung Group (or simply Samsung) ( ko, 삼성 ) is a South Korean multinational manufacturing conglomerate headquartered in Samsung Town, Seoul, South Korea. It comprises numerous affiliated businesses, most of them united under the ...

Swarovski Swarovski (, ) is an Austrian producer of glass based in Wattens, Austria, and has existed as a family-owned business since its founding in 1895 by Daniel Swarovski. The company is split into three major industry areas: the Swarovski Crystal ...

and

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, among their clients, the group operates its own mines located in quartz-rich areas of

Bahia Bahia ( , , ; meaning "bay") is one of the 26 Federative units of Brazil, states of Brazil, located in the Northeast Region, Brazil, Northeast Region of the country. It is the fourth-largest Brazilian state by population (after São Paulo (sta ...

Minas Gerais Minas Gerais () is a state in Southeastern Brazil. It ranks as the second most populous, the third by gross domestic product (GDP), and the fourth largest by area in the country. The state's capital and largest city, Belo Horizonte (literally ...

and

Goiás Goiás () is a Brazilian state located in the Center-West region. Goiás borders the Federal District and the states of (from north clockwise) Tocantins, Bahia, Minas Gerais, Mato Grosso do Sul and Mato Grosso. The state capital is Goiânia. ...

states. Silica Sand Mining Company, also part of the group, have an agreement with

Companhia Vale do Rio Doce Vale S.A., formerly ''Companhia Vale do Rio Doce'' (the Sweet River Valley Company, referring to the Doce River) () is a Brazilian multinational corporation engaged in metals and mining and one of the largest logistics operators in Brazil. Vale ...

for producing 10.000 tons of ferrosilica by year.

Entering the industrial sector

* In 1975, Telequartz Group, financed X-tal do Brasil factory producing oscillators and high quality optic fiber made by their own artificial quartz produced in laboratory. * In 1988, Telequartz reached a joint venture with CVRD and Nisso Iwai Ltd. to build a U$20 million quartz powder plant in

. The powder is an important constituent in the production of optic fibers, crucibles, oscillators, solar cells, wafers and integrated circuit packing, and ceramic materials of exceptional purity.

References

{{reflist

External links

Telequartz home pageMinerals Yearbook 1988The Mineral Industry of Brazil (1995)The Mineral Industry of Brazil (1994)
Companies based in Rio de Janeiro (state) Mining companies of Brazil Non-renewable resource companies established in 1926 1926 establishments in Brazil