set of various raw black minerals with name cutout

andesite background basalt black blende collage collection cut cutout description diabase dolerite dravite erbsenstein gedrite gray hematite ilmenite iron isolated llujaurite ludwigite lujavrite magnetite mahogany marmatite microgabbro mineral name natural nepheline obsidian ore out peastone perovskite pisolite raw rock rough sample set specimen sphalerite stone syenite tourmaline unpolished various white zinc