Brasilia Distrito Federal

Our High Purity Quartz goes through a top-notch quality analysis system supervised by skilled quality auditors who assess different products at different level. We have developed a state-of-the-art fa...

Rua Aprigio Freitas, 7

Since 09-01-2003 MINERADORA TRES FRONTEIRAS, EXTRACAO EXPORTACAO DE PEDRAS E MINERAIS LTDA.-EPP. located in Sao Joao de Araguaia, is carrying on with the extraction and processing of the quartz minera...

In 1971 we started as a rock crystal mining company and became an enterprise with restricted responsibility (Goiana Importadora e Exportadora Ltda.). After this year it began to acquire large quaring...