Large Natural Amethyst Geode, Sparkling Druzy Interior (Auction 2026-06-05, Lot 129A)

$321.25

South America, Uruguay or Bolivia, ca. millions of years old. A dramatic natural amethyst geode with a rugged matrix exterior, opened to reveal a sparkling crystal-lined cavity bordered by a band of white quartz. The interior displays dense, well-formed points in shades ranging from deep purple to soft lavender, creating strong contrast against the dark outer stone. Formed over immense geological time by silica-rich mineral solutions depositing crystals within volcanic cavities, this specimen is prized for both its visual impact and natural history. Size: 15″ L x 10.5″ W x 6.5″ H (38.1 cm x 26.7 cm x 16.5 cm)

Provenance: private Colorado, USA collection

Condition: Crystal have scattered small edge nicks and minor losses to points consistent with natural formation and handling. Exterior matrix shows typical surface pits, abrasions, and irregularities.