Petoskey stones
E69375
Petoskey stones are distinctive fossilized coral stones, often polished as gemstones, that are especially associated with the area around Petoskey, Michigan.
Aliases (1)
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
fossil
→
fossil coral → gemstone → rock → state stone → tourist attraction → |
| age | about 350 million years → |
| associatedWith |
Charlevoix, Michigan
NERFINISHED
→
Petoskey State Park → Traverse City, Michigan NERFINISHED → |
| 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 (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form: "Petoskey, Michigan"
subject surface form: "Petoskey, Michigan"
this entity surface form: "Petoskey stone"