Aura Amethyst Rainbow Clusters with Cut Base

Amethyst is February's birthstone and is the most valuable of the quartz gemstones. It contains iron that is finely dispersed throughout the crystal. The color is caused by the presence of manganese oxide impurities.
Each piece of this stunning Aura Amethyst has been hand treated with a thin coating of titanium to give this already beautiful Amethyst an iridescent gleam with a flat cut base for ease in displaying. These lovely clusters come in sizes of S, M or L.

Amethyst, the birthstone for February, is one of our most popular gemstone materials. Amethyst forms in long, prismatic crystals in geodes or hallow rocks. These geodes form when there are cavities in volcanic rock. As the rock cools, the mineral-saturated water, gases and volcanic material distill and crystallize. When these crystals harden, they form amethyst. Although generally more of a deeper purple, the stone can also have a reddish-purple tinge, or a very pale purple tinge that fades into a lilac.

Information about the sizes:

Small: The small cluster is approximately 2-3 inches.
Medium: The medium cluster is approximately 3-4 inches in diameter.
Large: The large cluster is up to 6 inches.