shale ("middle blue", vinton member, logan formation, lower mississippian; hanover pit, licking county, ohio, usa) 6 color palette

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#635B52 #AA945F #97969B #E0C897 #8B7C6B

related tags: 5F5B56 635B52 837C73 8B7C6B 978C72 97969B 98979A AA945F CEC2A9 E0C897 blue bowerston brick bricks company county formation hanover licking logan member middle mississippian ohio osagean pit pits quarries quarry shale shales vinton