(April 2015) Corruption in Brazil exists on all levels of society from the top echelons of political power (as seen in the MensalÃ£o Scandal and the Operation Car Wash and the Petrobras scandals) to the smallest municipalities.
Quartz sands, which are high in silica content, are used to make glass. When quartz sands are crushed they produce particles with sharp, angular edges that are sometimes used to make sandpaper for smoothing wood. Some quartz sand is found in the form of sandstone.
Of all the glass bottles sold in BC, 93% are returned. These bottles are ground down into small pieces called cullet and used in the manufacturing of a variety of things such as fibreglass insulation, sandblasting material and even sand for golf-course sandtraps.