Keywords: Zircon-192914.jpg This is very typical of the bi-pyramidal habit for zircon at MSH Prismatic xls do occur but they are not common On this xl the pyramidal faces are smooth but the small belt of prism faces is pebbly due to many tiny faces with re-entrant angles The habits of zircon are apparently related to formation temperature and melt composition See Lapis Nov 2011 p 23 Zirkon Sichtfeld 3 0 x 2 4 mm Fundort Steinbruch Poudrette Demix Uni-Mix Desourdy Mont Saint-Hilaire Rouville RCM Montérégie Québec Kanada http //www mindat org/photo-192914 html 2008-10-29 http //www mindat org/user-11235 html 0 Modris Baum Modris Baum Jargoon Minerals of Mont Saint-Hilaire Files by Modris Baum from mindat |