These Frosted Rainbow Crystal Cupcakes from Geo Central are created by treating amethyst cylinders to a combination of rainbow titanium and high heat. This treatments results in a rainbow of colors on the side of the crystal. Dimensions range from 1.25" to 2" high and 1.5" in diameter. Each crystal is different with some having crystal points and some having druze or other mineral elements.
Let us choose one for you.