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|Location is approximate, estimate based on other nearby localities.|
|Latitude & Longitude (WGS84):||40° North , 83° West (est.)|
|Margin of Error:||~28km|
Union County is a county in west central Ohio. It was founded on April 1, 1820 and named for its formation by a union of four other Ohio counties: Delaware, Franklin, Logan and Madison. The county seat is Marysville.
Mineral ListMineral list contains entries from the region specified including sub-localities
4 valid minerals.
Localities in this Region
The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.