Minerals A CATALOGUE OF MINERALS IN THIN SECTION - University College London ALPHABETICAL INDEX OF MINERALS, VARIETIES, SYNONYMS AND OTHER NAMES - mindat.org GEMSTONES - Gemhut GEOMAN'S ROCK & MINERAL CHARTS THE MINERAL GALLERY - Amethyst Galleries HEY'S CHEMICAL INDEX OF MINERALS ROCKS AND MINERALS - Version 3 - William Paterson University MINDAT ADVANCED SEARCH - mindat.org MINERAL USES, PROPERTIES, DESCRIPTIONS - Geology.com NATURAL GEMSTONES - USGS
