Mindat.org - William C. van Laer's articles http://www.mindat.org/u-1875.html The mindat.org user blog written by William C. van Laer New Finds in South Dakota http://www.mindat.org/article.php/453/New+Finds+in+South+Dakota Tue, 28 Oct 2008 Published: Tue, 28 Oct 2008, Subject: New Finds in South Dakota Cathedral Rock Pluton http://www.mindat.org/article.php/454/Cathedral+Rock+Pluton Tue, 28 Oct 2008 Published: Tue, 28 Oct 2008, Subject: Cathedral Rock Pluton Objections to current pegmatite theory http://www.mindat.org/article.php/332/Objections+to+current+pegmatite+theory Wed, 21 May 2008 Published: Wed, 21 May 2008, Subject: Objections to current pegmatite theory