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Petoskey Stone

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Named after an Ottawa Indian Chief, Chief Pet-O-Sega.
A fossilised (calcite) coral from Devonian (350my ago) - Hexagonaria Percarinata. Designated state stone in 1965.

Visit for gemological information about Petoskey Stone.

Classification of Petoskey Stone URL:
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Other Information

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for Petoskey Stone

Localities for Petoskey Stone

map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
  • Québec
    • Capitale-Nationale
      • Charlevoix RCM
        • Saint-Urbain
Gems and Minerals of America- Jay Ellis Ransom-1974
  • Michigan
Gems and Minerals of America- Jay Ellis Ransom-1974
    • Charlevoix Co.
      • Charlevoix
Field observation by Paul Brandes.
Gems and Minerals of America- Jay Ellis Ransom-1974
    • Crawford Co.
      • Frederic
Paul Brandes
    • Emmet Co.
Mineralogy of Michigan (E. W. Heinrich & G. W. Robinson)
Mineralogy of Michigan (2004) Heinrich & Robinson
Gems and Minerals of America- Jay Ellis Ransom-1974
Gems and Minerals of America-Jay Ellis Ransom-1974
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