2007 December 2006 November 2006 October 2006 September 2006 Sponsors Beryl Filed under: regular postings — Gary October 26, 2006 @ 1:24 pm Beryl The mineral beryl is a beryllium aluminium cyclosilicate with the chemical formula Be 3 Al 2 (SiO 3 ) 6 . The hexagonal crystals of beryl may