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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.

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 URL:
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Localities for Petoskey Stone

This 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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