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.
Tellurium was discovered in the Habsburg Empire, in 1782 by Franz-Joseph Mueller mÃ¼ller Von reichenstein in a mineral containing tellurium and. Gold Martin Heinrich klaproth named the new element in 1798 after The latin word for, earth. tellusaturally occurring tellurium has eight isotopes. Five of those isotopes, 122 Te, 123 Te, 124 Te, 125 Te and 126 Te, are stable. The other three, 120 Te, 128 Te and 130 Te, have been observed to be radioactive.