Cacoxenite (Seven Stone) Amethyst Elestial Cluster on Feldspar & Quartz MatrixElestial Cacoxenite Amethyst Crystal Specimen An exceedingly rare mineral masterpiece: a Matrix Cacoxenite Amethyst specimen gracefully set on a natural feldspar and quartz matrix, with origins in the Esprito Santo region of Brazilknown as the only source of the legendary Super Seven crystals. This piece not only carries rarity and beauty, but immense geological significance. This specimen has many highlights, but what truly sets it apart is its