 | | Book (volume) | | shales occasionally produces pieces of silicified wood. Ohio ranks first in the nation in the production...common opal, rivaling in beauty the Arizona agatized wood. This gem flint occurs in the 8 mile long Flint...ASHTABULA COUNTY CONNEAUT, area pits, quarries, rd. cuts, etc.⎯cone-in-cone Calcite. CLERMONT COUNTY MILFORD...CLINTON COUNTY WILMINGTON, area of Todd’s Ford, a mineral deposit⎯Hematite. COSHOCTON COUNTY AREA, townships...CUYAHOGA COUNTY CHAGRIN FALLS (on Geauga Co. line), area quarries⎯oilstone. DELAWARE COUNTY DELAWARE |  | | Book (volume) | | shales occasionally produces pieces of silicified wood. Ohio ranks first in the nation in the production...common opal, rivaling in beauty the Arizona agatized wood. This gem flint occurs in the 8 mile long Flint...ASHTABULA COUNTY CONNEAUT, area pits, quarries, rd. cuts, etc.⎯cone-in-cone Calcite. CLERMONT COUNTY MILFORD...CLINTON COUNTY WILMINGTON, area of Todd’s Ford, a mineral deposit⎯Hematite. COSHOCTON COUNTY AREA, townships...CUYAHOGA COUNTY CHAGRIN FALLS (on Geauga Co. line), area quarries⎯oilstone. DELAWARE COUNTY DELAWARE |  | | Book (volume) | | beds, excavations, etc.Selenite roses. BRULE COUNTY AREA: in the Oacoma zone of the Pierre Fm. On Elm...gray Barite rosette up to 5 or 6 inches. CAMPBELL COUNTY MOUND CITY, W to the Missouri R., regional hillsides...banks, tributary gravels, etc.petrified wood, wood opal. CORSON COUNTY LITTLE EAGLE: area ridges, slopes...slopes, stream beds, etc. petrified wood, wood opal; along the Grand R. though entire Co., regional...regional banks, breaks, gravels, etc. petrified wood, wood opal. 438 A Location Guide for Rock Hounds in |
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