Riverstone , by lino tagliapietra , sculpture , Op Art style
A very colorful glass ball sitting on a table.
 of an art piece. The art piece is a round ball. The ball is black and has lines painted on it in different colors. The lines are orange, blue, yellow, red, and purple. The background is a solid purple color. The surface the ball is sitting on is black. There are no other objects in the image. 