(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.
Using a Furnace or Kiln. 1  1. Obtain silica sand. Also called quartz sand, silica sand is the primary ingredient in making glass. 2  2. Add sodium carbonate and calcium oxide to the sand. Sodium carbonate (commonly called washing soda) lowers the temperature necessary to make glass commercially.