beautiful amethyst gemstone on an agate thunderegg with gorgeous patterns.

abstract agate amethyst beautiful blue border celebration chalcedony closeup coin color colors colour contour delineation demarcation enclosing form formation frame gem gemstone geological geology gold gorgeous heart jewel jeweler jewelry jewels lines love macro magnified magnify makes margin mineral mineralogy outline patterns perimeter pink polish polished precious red ring rock romance rose semiprecious shape stone surrounding this thunderegg valentine wedding white