Michigan Petoskey Stone Identification
Petoskey Stone is a realistic Michigan fossil profile built around weathered colonial coral Hexagonaria polished by Great Lakes waves. In this state, success usually comes from learning glacial till, Devonian limestones, and Lake Superior gravels, then timing runoff, reservoir drawdown, surf cuts, or road work that exposes fresh fossil-bearing rock instead of hunting blindly.
Key Traits
- ●six-sided corallite pattern
- ●rounded beach-worn shape
- ●gray fossil coral texture
- ●Check glacial till, Devonian limestones, and Lake Superior gravels
Era
Devonian
Type
coral
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