We are mining-col based in Sogamoso , Colombia. We are member of Tradekey.com since January, 2009. Our business is related to Minerals & Metallurgy industry and we specifically deal in quartz, pyrite. Please find our product details below:QUARTZWE SELL QUARTZ CRYSTALS OF SEVERAL SIZES, FROM THE 70 % to 97 % of PURITYEXTRACTED AT SEVERAL REGIONS OF COLOMBIA.THE EXTRACTED QUARTZ IS OF GOOD QUALITYQUARTZWE SELL QUARTZ CRYSTALS OF SEVERAL SIZES, FROM THE 70 % to 97 % of PURITYEXTRACTED AT SEVERAL REGIONS OF COLOMBIA.THE EXTRACTED QUARTZ IS OF GOOD QUALITYThank you for taking the time to go through our business profile. If there are any question, inquiry or comments, please feel free to contact us.