very large, very rare clear rock crystal sphere with many embedded clear green tourmalines

A very large, clear rock crystal sphere from Brazil with numerous clear green tourmalines as inclusions. A peak rarity of gallery format, due to its deposit.

Green tourmalines (verdelite) are a rare tourmaline variety. The color is caused by chromium or vanadium substitutions in the borosilicate lattice. Embedded in a rock crystal matrix, they document a pegmatitic deposit with synchronous borosilicate and quartz mineralization.

The combination of a large spherical dimension and gemologically high-quality verdelite inclusions is a top rarity due to its deposit. The material value is disproportionate to the block size and premium properties.

Brazilian pegmatites provide this material in cutting quality. The spherical shape maximizes the visual effect of the tourmaline rods against the transparent quartz matrix.

A museum-worthy Brazilian collector's item with documented verdelite premium classification and top gallery dimensions.