rare
kona dolomite
stromatolitic dolomite

The tell
Pink, cream and grey swirled together, often with clear layered or domed structures running through it.
Those structures are stromatolites: mats of algae, and among the oldest visible fossils on earth. The Kona Hills themselves are private land; look for float on the Marquette shore.
What it gets mistaken for
The facts
- also calledstromatolitic dolomite
- age~2.1 billion yrs
- where it turns upMarquette float ยท Kona Hills are private
- on the chartrare · 250 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 250 kona dolomite will ever be printed, then the run is retired.
10% of every order goes to the Roscommon County Animal Shelter.