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Walter R. Kellogg

 

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Mineral Specimen #1076    Petoskey Stone (Hexagonaria percarinata)

Northern Lower Penninsula, Michigan, USA

State Stone of Michigan

A well polished Petoskey Stone. This is the state stone of Michigan. It is colony coral from the Devonian Age and are approxiamately 350 million years old. The Coral has been replaced with Calcite. The stones cannot be tumbled polished and are usually polished by hand on a wheel.

From the Reed Meyers collection

5.4 x 5.3 x 2.7 cm

$15      Click here to order this mineral.                                                                                                                                                              

This mineral is also found in the following galleries: Minerals From Michigan | Calcite | Pseudomorphs | Polished & Worked | Minerals Priced Under 25 Dollars
Mineral Specimen: Petoskey Stone (Hexagonaria percarinata) from Northern Lower Penninsula, Michigan, USA
Mineral Specimen: Petoskey Stone (Hexagonaria percarinata) from Northern Lower Penninsula, Michigan, USA
Mineral Specimen: Petoskey Stone (Hexagonaria percarinata) from Northern Lower Penninsula, Michigan, USA
Mineral Specimen: Petoskey Stone (Hexagonaria percarinata) from Northern Lower Penninsula, Michigan, USA
This mineral is also found in the following galleries: Minerals From Michigan | Calcite | Pseudomorphs | Polished & Worked | Minerals Priced Under 25 Dollars

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 All prices are in U.S. dollars.