Thursday, August 16, 2012

TOD (Answer)...

To answer the question what metallic element has been used in glassmaking, is the 12th most abundant element in the Earth's crust, and was first isolated in 1774?  -->

          - Manganese

Question (and answer) found in Volume 10 of the McGraw-Hill Encyclopedia of Science & Technology published in 2002.  I opened to page 364.