Bismuth Rainbow Crystal Staircase - SOLD 1.904" space These denticles are specialized dermal

These denticles are specialized dermal scales

produced in an extremely limited quantity of encapsulated cards

palaeoclimatology

334" mission-flown nose landing gear tire fragment from the Space Shuttle Columbia (OV-102)

18-20": The top chain measures 18 inches (~46cm) and the bottom chain measures 20 inches (~51cm)

Bismuth Rainbow Crystal Staircase - SOLD 1.904" space These denticles are specialized dermalBismuth 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. 904". While bismuth's practical uses are limited beyond some pharmaceuticals, the element's utterly unique colors and shape continue to