Petoskey stones

E69375

fossil fossil coral gemstone rock state stone tourist attraction

Petoskey stones are distinctive fossilized coral stones, often polished as gemstones, that are especially associated with the area around Petoskey, Michigan.

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All labels observed (3)

Label	Occurrences
Petoskey stone	11
Petoskey stones canonical	3
Petoskey stone coral	1

Statements (47)

Predicate	Object
instanceOf	fossil ⓘ fossil coral ⓘ gemstone ⓘ rock ⓘ state stone ⓘ tourist attraction ⓘ
age	about 350 million years ⓘ
associatedWith	Charlevoix, Michigan ⓘ Petoskey State Park ⓘ Traverse City, Michigan ⓘ
category	Devonian fossils ⓘ fossils of the United States ⓘ symbols of Michigan ⓘ tourist attractions in Michigan ⓘ
collectionMethod	rock hunting after storms ⓘ surface collecting on beaches ⓘ
color	gray ⓘ light brown ⓘ
commonUseLocation	gift shops in northern Michigan ⓘ
country	United States of America ⓘ surface form: United States
culturalSignificance	regional symbol of northern Michigan ⓘ
environmentOfFormation	shallow warm sea ⓘ
formedFrom	Hexagonaria percarinata coral ⓘ
fossilType	colonial coral fossil ⓘ
foundIn	Lake Michigan shoreline ⓘ Little Traverse Bay ⓘ northwestern Lower Peninsula of Michigan ⓘ
geologicalPeriod	Devonian Period ⓘ surface form: Devonian
hardness	relatively soft ⓘ
locatedInTheAdministrativeTerritorialEntity	Michigan ⓘ
material	calcite ⓘ fossilized rugose coral ⓘ
namedAfter	Petoskey, Michigan, United States ⓘ surface form: Petoskey, Michigan
officialStatus	official state stone of Michigan ⓘ
officialStatusStartDate	1965 ⓘ
pattern	hexagonal coral cell pattern ⓘ honeycomb-like appearance ⓘ
polishability	takes a high polish ⓘ
popularIn	rockhounding community ⓘ
taxonOfOrigin	Hexagonaria percarinata ⓘ
tourismImpact	attract rock collectors and tourists ⓘ
usedAs	decorative stone ⓘ jewelry material ⓘ paperweight ⓘ polished gemstone ⓘ souvenir ⓘ
visibilityWhenWet	coral pattern becomes more distinct when wet ⓘ

Referenced by (15)

Full triples — surface form annotated when it differs from this entity's canonical label.

Petoskey, Michigan, United States → knownFor → Petoskey stones ⓘ

subject surface form: Petoskey, Michigan

Petoskey, Michigan, United States → officialCityStone → Petoskey stones ⓘ

subject surface form: Petoskey, Michigan