Amethyst - Cathedral Geode - Statement Specimen bangle a hydrated calcium sulfate mineral

a hydrated calcium sulfate mineral that forms in evaporite environments where mineral-rich waters leave deposits behind

Geological Age: ~23–10 MYA

Composed of calcium carbonate (CaCO₃)

with some species growing as large as several feet in diameter

Size: 13cm x 6cm x 6cmWeight: 562g

Amethyst - Cathedral Geode - Statement Specimen bangle a hydrated calcium sulfate mineralMined from: Rio Grande do Sul, Brazil Description: This one of a kind Amethyst statement mineral specimen from Brazil features a tall, narrow cathedral form with a deep hollow center lined in small sparkling Amethyst crystals. The interior ranges from pale lavender to smoky purple, with a bright white quartz rim framing the crystal pocket and a dark, rough basalt outer shell along the back and sides. Several lighter quartz clusters and a few tan