Wonderful amethyst heart from Uruguay with a great rock crystal edge

A dark amethyst heart from Uruguay with a wide rock crystal rim and a delicate chalcedony border that extends to the back of the piece.

Inside the heart, the dark violet amethyst crystals are natural and sparkle in the light. The rim has been cut and polished, revealing individual crystal points as an accent.

Uruguayan amethyst is known for its particularly deep color saturation. The geode originates from a roughly one-hundred-million-year-old volcanic gas bubble, where SiO₂ crystallized with low iron input.

Such hearts are cut from an agate amygdule of the volcanite matrix. The shape is a classic presentation geometry for galleries and collector display cases.