Bismuth Rainbow Crystal Staircase - SOLD 1.55" redplanetobsidian Named for Captain James Cook’s

Named for Captain James Cook’s HMS Endeavour

Deposits from Massachusetts

This 4X macro lens embedded in a durable elastic band has enabled us to take so many great pictures on the fly that we've decided to carry it here in the shop

The Trilobite

They grew to reach about 5 feet in length

Bismuth Rainbow Crystal Staircase - SOLD 1.55" redplanetobsidian Named for Captain James Cook’sBismuth 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. 55". While bismuth's practical uses are limited beyond some pharmaceuticals, the element's utterly unique colors and shape continue to