Argentinian Blue Calcite Sphere, 2.9 inches in diameter.
Just how many different blues can one rock hold? I originally purchased this material as onyx. When I finally met the miner, I was informed it was calcite. Oh so different from the calcites from California. I love it when you can see what is going on inside the sphere and this material does just that. It takes a watermark polish to boot!
To view video, click here or copy and paste: https://www.facebook.com/RockNSpheres/videos/4462574683840678