Ohio Lithic Material
Name | Natural | Non-heat treated points | Heat treated points | Color details | Primary found in: | Associated Formation / Member |
Allens Creek Chert Muldraugh variation AKA: Floyds Knob Chert |
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Mottled and ranges in color from gray, tan, brown, and blue. May be translucent. | Western Ohio | Muldraugh Formation of the Sanders Group |
Argillite |
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Light to dark green, but may range to various shades of gray. | Ohio | ||
Banded Slate |
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Ohio | |||
Bayport Chert |
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Varies from light brown to a medium gray. White quartz inclusions can form white clouds or bulls eye forms in the material, Banding may be present. | Northwestern Ohio | Bayport Limestone formation |
Berea Sandstone |
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Light gray to a buff | Ohio | Waverly Group | |
Bisher Chert AKA: Highland Chert, Lilley Chert |
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Ranges in color from a white to yellow including mottled tan and creams. | Southwestern Ohio | Bisher Dolomite formation |
Bloomville Chert |
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Ranges from a mottled or banded light gray to a dark gray. | Northern Ohio | |
Boggs Chert AKA: Blunt Run Chert |
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Ranges in color from a dark gray to black with numerous white or light colored speckles from fossils | Southeastern Ohio | Boggs member, Pottsville Group |
Brassfield Chert AKA: Clifton Chert / Agate, Belfast Chert |
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Artifacts tend to range in color from light greenish to blue or light tans mottled with yellowish red to milky white | Southwestern Ohio | Brassfield Formation |
Briar Hill Sandstone |
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Golden tan | Central Ohio | ||
Broyle Chert |
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Vary in color from yellows to tan or blues. The cortex is white and chalky. Rarely may be translucent | Southwestern Ohio | Middle Devonian chert |
Brush Creek Chert AKA: Crooksville Chert, Hughes River Chert |
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Varies in color from a tan to a brown olive or light green | Southern Ohio | Conemaugh Group |
Cambridge Chert AKA: Nadine Chert |
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Gray colored chert | East central Ohio | Cambridge Member (Nadine Limestone Formation) of the Conemaugh Group |
Cedarville - Guelph Chert AKA: Shawnee Chert |
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Primarily a mottled white to light gray or light blue numerous fossils giving a speckled appearance with vugs or quartz present | Northwestern Ohio | Cedarville-Guelph formation |
Coffee Creek Chert Jeffersonville Chert variation |
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Semi-translucent and variegated ranging from a bright white to a light gray, very pale brown, slightly pinkish white in color with a milky or creamy appearance | Extreme southwestern Ohio | Jeffersonville Limestone formation |
Columbus Chert |
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Ranges in color from a white to a light gray | Northwestern Ohio | Columbus Limestone Formation |
Coshocton Chert Upper Mercer Chert variation |
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Ranges from a medium gray to a dark bluish gray with bands of various shades of blue, commonly has bands of white quartz | Ohio | Pottsville formation |
Crystal Quartz |
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clear colorless stone similar to clear glass | Ohio | ||
Delaware Chert AKA" Marble Cliff Chert, Scioto Chert |
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Range from a dull tan to almost a black chocolate brown | Northern Ohio | Delaware Formation |
Dover Chert Fort Payne variant AKA: Elco Chert |
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Range from a light tan to almost a black chocolate brown with swirls, bands, or streaks of light to dark | Western to central Ohio | Fort Payne Formation | |
Eversole Chert Columbus Chert variant |
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light colored chert, impure in nature | Central Ohio | Columbus formation |
Fairfield County Chert |
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Light grayish blue color | Southwestern central Ohio | River cobble |
Fishpot Chert |
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Primarily light to dark brown and gray in color. High quality similar to chalcedony. Light banding with small bluish gray chalcedony inclusions. | East central Ohio | Monongahela group, Fishpot limestone member |
Flint Ridge Chert /Chalcedony AKA: Van Port Chert, Raccoon Creek Chert |
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White to bluish hues with bands of light gray, reds, and yellows | Ohio | Van Port Member of the Allegheny Formation |
Fort Payne Chert |
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Ranges in color from black to a grayish blue, or white to a bluish white. Bluish gray is the predominate color with bluish hues | Extreme southern Ohio | Fort Payne formation | |
Four Mile Creek
Chert AKA: Salamonie Chert |
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Ranges from a pink to an off white, light gray, light blue, or light bluish gray color. Chalcedony inclusion may be present. | Southwestern Ohio | Salamonie formation, Laurel member |
Greenfield Chert |
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Ranges from a light to dark gray with white chalcedony / quartz inclusions.. | Extreme southern Ohio | Greenfield formation, Saline Group |
Hamden Chert |
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Ranges from a light gray to a gray, yellow to brown, or reddish brown. Black and white specks of chalcedony filled vugs are present. | Southeastern Ohio | Allegheny formation, Hamden member |
Harrison Chert AKA: Maxville Chert |
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Ranges in color from a white to an off white or light gray with dursy inclusions | East central Ohio | Harrison and Maxville member, Pottsville group |
Huronia Chert AKA: Lower Gull River Chert |
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Bluish gray mottled or banded with brownish-grey or greyish-beige colors, commonly speckled with light/dark grey, or grey-black | Extreme northeastern Ohio | Fontenac Axis member of the Gull River formation |
Jeffersonville Chert |
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Ranges from white to cream or light yellow to tan and medium brown darker brown bands appearing jagged and interspersed | West central to central Ohio | Jeffersonville Limestone formation |
Kanawha Black Chert |
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Vary from a black to a bluish black /gray to a dark gray | Southeastern Ohio | Kanawha formation |
Laurel Chert AKA: Raisch-Smith Chert |
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Mottled and ranges in color from a off white to a light tan or light gray. | Southwestern Ohio | Laurel formation |
Lead Creek Chert Type I AKA: Rockport Chert |
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Opaque, mottled, varying shades of gray commonly having a marbles appearance with patches or streaks of an orange, tan, or gray | Southwestern Ohio | Lead Creek Limestone Formation |
Lead Creek Chert Type II AKA Plummer Chert |
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Opaque, variegated with shades of medium to dark gray. Patches or streaks of orange, tan, or gray and white specks of fossils | Southwestern Ohio | Lead Creek Limestone Formation |
Lead Creek Chert Type III AKA: Lieber Chert |
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Mottled and ranges in colors from a pale blue to a dark navy blue or black. | Southwestern Ohio | Lead Creek Limestone Formation |
Licking River Chert |
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Logan County Chert Cedarville-Guelph variation |
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Ranges in color from a light, dull gray to dull pink. Usually it is speckled with a darker gray | Northwestern Ohio | Cedarville-Guelph formation |
Lower Mercer Chert |
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Bluish gray color with quartz inclusions. | Southeastern to east central Ohio | Lower Mercer Member of the Pottsville Formation |
Maxwell Chert |
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Ohio | Maxwell Formation | |
Monongahela Chert |
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Ranges from light to medium gray with limonite staining | Extreme east central Ohio | Uniontown member of the Monongahela Group |
Muldraugh Chert |
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Ranges in color from light to medium grays, pale brown to an light olive brown or dusty yellow. Variegated or mottling or vugs may be present.. | West central to southwestern Ohio | Muldraugh Formation of the Sanders Group |
Nellie Blue Chert (Upper Mercer Chert variant) |
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Gray to medium blue and commonly has white streaks | Ohio | Upper Mercer Limestone of the Pottsville group |
Nethers Chert Flint Ridge Chert variation AKA: Ribbon Chert |
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Banded with colors ranging from light gray to black, pink to red, or tan to brown | Ohio | Van Port Member of the Allegheny Formation |
Obryan Chert AKA: Southern Vanport Chert |
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Ranges in color from a mottled gray to white with calcium carbonate vermiculate lines | Extreme southern Ohio | Allegheny formation of the Obryan Member |
Onondaga Chert AKA: Buttermilk Falls, Black Rock, Clarence, Coniferous, Diver's Lake, Edgecliff, Moore House, Nedrow, Seneca, Fort Erie Chert |
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Vary from light to dark gray to a mottled bluish gray to a dark brown or black or tan. | Northern Ohio | Onondaga Limestone Formation |
Orthoquartzite |
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Varies | Ohio | ||
Pipe Creek Chert AKA: Perkins, Plum Brook, Brook Chert |
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Ranges from gray to bluish gray or a pale brown, may be mottled or homogenous, light blue cloudy and quartz lined vugs may be present | Extreme northwestern Ohio | Tenmile Creek Formation |
Plum Rum Chert |
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Ranges in color from a light tan to grays, pinks and yellows. It is a mottled chert. | East central Ohio | Van Port formation |
Putnam Hill Chert |
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Medium gray color | East central to southeastern Ohio | Putnam Hill member of the Allegheny formation |
Quartz |
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Milky white with thin veins |
Ohio | ||
Quartzite |
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Varies from white to gray, or pink and tan in color | Ohio | ||
Rhyolite |
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Gray to grayish black, flow banding may be present alternating from light to darker gray | Ohio | ||
Prout Chert |
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Ranges in color from a cream to a tan, light gray to a dark gray or blue. | Northeastern Ohio | Prout Dolomite Formation |
Sky Hill Chert AKA: Mahoning Chert |
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Ranges in color from a light brown or tan to black. The most common color is gray | Extreme east central Ohio | Upper Mercer formation of the Pottsville group |
Sonora Flint AKA for Wyandotte Chert |
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Vibrant colorful flint that may range from tans to light gray-blue and dark brown to purples | Southwestern Ohio | Ste. Genevieve Limestone formation | |
Ten Mile Creek Chert |
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Ranges in color from a dark brownish gray to an olive gray or bluish gray. | Extreme east central Ohio | Greene Formation |
Transverse Chert |
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Dark gray | Northwestern Ohio | Transverse Limestone formation |
Upper Mercer Chert |
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Ranges in color from a medium gray to black | Ohio | Upper Mercer Limestone of the Pottsville group | |
Zaleski Chert Upper Mercer Chert variation AKA: Black Flint |
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Glossy black and commonly has white streaks | Ohio | Zaleski member of the Allegheny Formation |