Bismuth Rainbow Crystal Staircase - 1.869" showcasejewelry2025saleall this necklace features a 1

this necklace features a 1

The skin fragment measures approximately 4mm long and has been sealed in resin

Black & Silver - Primarily Black

The cluster measures 5

257" fossil metatarsal piece from an Allosaurus recovered on private land from the Morrison Formation

Bismuth Rainbow Crystal Staircase - 1.869" showcasejewelry2025saleall this necklace features a 1Bismuth is an element (Bi 83) best known for its unusual staircase shape, the result of bismuth atoms attaching to the edge of a rapidly growing crystal. This is called hoppering, when atoms are drawn to the edge of a structure, creating a lattice formation. This specimen is a Bismuth Rainbow Crystal, measuring 1. 869". While bismuth's practical uses are limited beyond some pharmaceuticals, the element's utterly unique colors and shape continue to