High quality quartz crystal mines
Coleman Quartz Mine - Exploring Arkansas (AETN)	Quartz crystal mines
Sterling Hill Museum
Sterling Hill mining museum	Fluorescent Minerals at the Sterling Hill Mining Museum
Iowa geodes - Collecting and breaking a geode
Iowa geodes	Geodes

Videos of Eugi mine and minerals  Collecting herkimers Amethyst mining (Canada) Collecting herkimers Amethyst mining (Canada) Expominer 2007 Amber in Sayreville - New Jersey Expominer 2007 Amber in Sayreville - New Jersey Gemology of precious opal Colombian emeralds Gemology of precious opal Colombian emeralds Naica - Giant gypsum crystals cave Fluorescent minerals Naica - Giant gypsum crystals cave Fluorescent minerals Feldspar and Quartz - Cinco, California Kyanite in Philadelphia Feldspar and Quartz Kyanite in Philadelphia