ultra rare
thomsonite
zeolite
The tell
Radiating eyes, concentric rings of pink, green, cream and white, usually still sitting in dark basalt.
A zeolite that grew in the gas pockets of Keweenaw lava. The eyes are crystals radiating from a point, which is why they are round.
What it gets mistaken for
The facts
- also calledzeolite
- age~1.1 billion yrs
- where it turns upKeweenaw basalt & beaches
- on the chartultra rare · 150 stickers ever
Put it on the shelf
Every stone on this chart is drawn and kiss-cut at three inches. The rarer the stone, the fewer exist: only 150 thomsonite will ever be printed, then the run is retired.
10% of every order goes to the Roscommon County Animal Shelter.