Sand. 1 Cubic Yard of Sand can weigh between 2,600 to 3,000 lbs. or up to one and a half tons approximately. 1 Ton of Sand will cover between 80 to 100 square feet at a 2 inch depth approximately.
Tellurium was discovered by Franz Joseph Muller von Reichstein in 1783 at Romania. Origin of name: from the Latin word  tellus  meaning  earth . Tellurium was discovered in gold ores by Franz Joseph MÎ´ller von Reichenstein, the chief inspector of mines in Trannsylvania in 1782.However tellurium was named by M. Klaproth, who isolated it in 1798, after he continued MÎ´ller von Reichenstein's work.ellurium was discovered in gold ores by Franz Joseph MÎ´ller von Reichenstein, the chief inspector of mines in Trannsylvania in 1782. However tellurium was named by M. Klaproth, who isolated it in 1798, after he continued MÎ´ller von Reichenstein's work.
Production: Anode sludge, collected during electrolytic copper refining, are the principal source of tellurium, which is only produced as a by-product of copper and base metals. Other sources can include flue dusts and gases produced during lead, bismuth, gold, nickel and platinum smelting.roduction: Anode sludge, collected during electrolytic copper refining, are the principal source of tellurium, which is only produced as a by-product of copper and base metals. Other sources can include flue dusts and gases produced during lead, bismuth, gold, nickel and platinum smelting.