http://www.mindat.org/u-1313.html The mindat.org user blog written by Gerhard Brandstetter http://www.mindat.org/blog.php/143/Micromineralien+aus+Pl%C3%B6cking%2C+O%C3%96+%28sorry%2C+in+german%29 Sun, 30 Dec 2007 Published: Sun, 30 Dec 2007, Subject: Micromineralien aus Plöcking, OÖ (sorry, in german)