ultra rare
thomsonite
little ringed eyes · a beach is named for it
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 calledlittle ringed eyes · a beach is named for it
- age~1.06 billion yrs
- where it turns upKeweenaw beaches · mostly Minnesota
- the field marklittle radiating eyes · a knife scratches it
10% of every order goes to northern Michigan animal shelters.