http://www.mindat.org/u-1008.html The mindat.org user blog written by Peter Andresen http://www.mindat.org/article.php/25/My+swap+list Tue, 24 Jun 2008 Published: Tue, 24 Jun 2008, Subject: My swap list http://www.mindat.org/article.php/211/Level+1+%28Plan+1%29+pegmatite+2007-2008. Sat, 08 Mar 2008 Published: Sat, 08 Mar 2008, Subject: Level 1 (Plan 1) pegmatite 2007-2008.