Crystal Cave-Emerald

Watch crystals magically grow within each dome as it hangs upsidedown in its box then turn the box over and see the crystals dissolve and disappear over a period of days or weeks. The process can be repeated again and again; every time, the crystals will grow in different shapes. Turn the box sideways and observe crystals dissolving and growing simultaneously! Each dome comes with its own "cave box" and a fascinating 48page booklet of cool cave info. For ages 6 and up.Available StylesEmerald (green)Amethyst (purple)Aquamarine (blue) Size21/2" tall