This marble is about 2.25 inches in size with a slight flaw on the surface, a tiny bubble indent. This beautiful marble was created using murrine that represents barnacles found in the ocean. I use blue and green colored glass as the base and clear glass to create a woderful underwater scene. I then use a graphite mold to shape the marble into a perfect sphere.
You can watch a video on how I created a similar marble:
https://youtu.be/59S0p_FlHTY?si=ILWU4CVhAWg3hzQt