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

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