close-up of a piece of amethyst crystal resting on a dark gray stone or slate surface

purplegray striations characters background patterned attention jewellery sculpture amethyst elements lighting closeup crystal surface visible banding roughly appears concave colored chinese blurred drawing subject carving produce oblong design swirls floral scroll yellow orange piece stone slate light color rests matte rough asian abstract backdrop bright colorful crystals decoration gem gemstone geology isolated jewel jewelry luxury macro mineral texture natural nature ornament paper pattern pink precious purple quartz rock semiprecious shiny sparkle splash stain valuable violet wallpaper white