Period 6 element niobium, occurs in the minerals tantalite, columbite and coltan (a mix of columbite and tantalite). Tungsten, also known as wolfram, is a chemical element with the chemical symbol W and atomic number 74. The word "tungsten" comes from the Swedish language "tung sten" directly translatable to "heavy stone", though the name is "volfram" in Swedish to distinguish it from Scheelite, in Swedish alternatively named "tungsten". A hard, rare metal under standard conditions when uncombined, tungsten is found naturally on Earth only in chemical compounds. It was identified as a new element in 1781, and first isolated as a metal in
Otherwise Known as Sheila the Great work with Sheila because of her fear of the water Judy Blume dedicated the book to her father and her mother. The post-2002 reprints of this book have some lines edited and a bit of new content added to update the technology use in it (for instance, record players are replaced with CD players, and the camp's copier keeps malfunctioning, which is why Sheila must use a mimeograph machine, whereas the original had them already still using their mimeograph machine and not having a copier yet). Judy Blume's website Otherwise Known as Sheila the Great Otherwise Known as Sheila the