This is a hydrothermally etched amethyst, which is a personal release from my collection. Lilac has formed over the course of millions of years, and is referred to as a “dissolution" crystal. She formed in the ground as a regular amethyst crystal and a hydrothermal solution, most likely hot, mineralized water, comes through at a later point in time. This makes her naturally carved by underground water flow, taking millions of years. As this process unfolds, the crystals are etched in very unusual ways, and specific to their location.
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Lilac also is brazen with her rainbows at the tip of her generator point, which tells me she is a smart cookie. She also comes with the stand as pictured.