Open amethyst geode with special colour

An open amethyst geode from Brazil with a special color classification. The inner wall shows an unusual color graduation beyond the typical deep-violet standard amethysts.

Possible colors include lavender pastel, burgundy red, or plum purple. All variants document specific iron concentration conditions during growth.

The open geode form means that the outer wall of the geode has been completely removed on one side, allowing a direct view of the crystal's interior.

This display variant has been established in Brazilian workshops for decades. The deposits in Rio Grande do Sul supply material in this form classification.

A Brazilian collector's item with a special color variant, flat geometry, and an open geode presentation.