hornblende Synonyms

ferroedenite nephrite lepidomelane iolite gypsum graphite glaucophane glauconite garnet fluorite pargasite pyrite spodumene ferroactinolite hard black stone hard greyish-black stone hedenbergite galaxite fluorspar diatomite zoisite trachyte feldspar emery edenite brookite brimstone boron bauxite barite azurite asbestos aragonite amphibole calcite carbon chalcedony crystal cryolite crocidolite corundum cobalt coal clay chromite chlorite alabaster