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Lithic Sourcing |
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Archeologists guide to toolstone sources. |
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(Mississippian) Also gray, blue, green, or pink. Sometimes mottled or banded. Often has crinoids or other fossil inclusions. |
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Also gray, blue, white, or green. Sometimes mottled or banded. Jack Ray has documented 9 types. Don Dickson has described over 20 Reed’s Spring variations. |
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Nodular chert in the Cotter Formation (Early Ordovician) and in the residuum formed by its weathering is often available in attractively banded pieces. particularly in Marion County, and also in portions of Carroll, northern Boone, Baxter, Fulton, Randolph, Sharp, and Izard Counties. This is the major outcrop area of the Cotter Formation. |
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Similar to Cotter chert. |
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Jefferson City |
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Flint Ridge is located in East Central Ohio, east of the city of Newark and west of city of Zanesville. It’s geographically located in a line of rugged hills and is actually an irregular plateau, running in a line from east to west. Elevation is an average of 1200' above sea level, but decreases gradually towards the eastern side of the Ridge. Colors vary but frequently it is mottled (splotchy colors sometimes with "lightning bolts" and some have yellow or red mixed in), "Banded" (alternating stripes) usually in lavender, gray, dark with some combination of red or a combination, bright colors like red, yellow, sometimes a bluish tint. |
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Novaculite is a sedimentary rock composed mostly of microcrystalline quartz and is a recrystallized variety of chert. It is dense, hard, white to grayish-black, pink, or redish in color, translucent on thin edges, and has a dull to waxy luster. It typically breaks with a smooth conchoidal (shell-like) fracture. The word novaculite is derived from the Latin word novacula, meaning razor stone. |
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White Tool Stone |
lithicsourcing@yahoo.com |
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Peoria is very similar to Boone, Keokuk, Burlington varieties. Micrographs and chemical analysis data on these toolstone varieties would be most welcome. |
