Brazilian Amethyst Cavern Geode 10.3 KG

This striking amethyst cavern geode from Brazil, weighing 10.3 kilograms, reveals a glittering interior lined with large, well-formed crystals of excellent clarity and a rich, vibrant purple hue. Each point catches the light beautifully, giving the geode a depth and sparkle that makes it a true statement specimen.

Formed over 135 million years ago within volcanic rock, this geode began as a hollow cavity in ancient lava flows. Over time, silica-rich fluids seeped in, slowly crystallising into the amethyst we see today. The result is a natural time capsule — both a display of geological wonder and a collector’s treasure.

Perfect as a centerpiece for a collection, a display in the home, or a teaching specimen, this geode carries with it not just beauty, but deep history. No two are ever the same — making this cavern a unique, one-of-a-kind addition.

Dimensions: H23cm W30cm D16 cm

Weight: 10.3 kg

Origin: Brazil

Geological Age: ~135 million years (Cretaceous Period)

 Free UK postage with this item

 Please note: Every effort is made to photograph specimens in natural light for accurate representation. However, variations in screen settings may cause slight differences in colour appearance.