Not a mineral at all: fossilized ammonite shell, seventy million years of pressure turning it iridescent. This triangle fires green and blue at the same time, which is greedy of it — most stones settle on one dominant flash. The shape is what sold me, because ammolite gets cut to whatever the usable layer allows, and a clean geometric triangle means the good layer happened to sit that way.
Fossil color never repeats. This one exists once.
Sizing: Ready to ship in size 9.
Measurements: 23 mm (H) x 15 mm (W) — 7/8 x 5/8 inches
