macro mineral stone hemimorphite on a white background

agate aquamarine background blue cap carbonate cerulian chalcedony close closeup crystal crystalline crystals druzy facet fluoresence gem gemstone geology gossan hemimorphite industrial infrared iron isolated jewel lead macro mine mineral mining natural nature ore precious quartz rock rough sample science semiprecious smithsonite sorosilicate specimen sphalerite stone stones sulfate ultraviolet vug white zinc zine