(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.
How glass cullet is used. Glass cullet is a hard, granular material and this has led many engineers to consider using it as a construction aggregate. In recent years, glass cullet has been used in the. as an aggregate in bituminous highway materials.