Flint is a type of chalcedony, the microcrystalline variety of quartz. Chalcedony’sother subvarieties are agate, jasper and chert. While agate and jasper are almost pure chalcedony, chert and flint are impure forms. Because of their variable chemical compositions, they are classified as rocks. The … See more Flint Ridge, located in southeast Ohio about 40 miles east of Columbus, the state capital, is an unimposing, low escarpment in the gently rolling … See more As a high-silica, chemical-sedimentary rock, flint is dense, tough, durable, fine-grained, and quite hard (Mohs 7). It resists erosion and can occur in a wide spectrum of colors. Along with chalcedony, flint also contains small … See more Conchoidal fracturing is the mechanical basis of flaking or knapping, a Paleolithic skill and an art that survives among flint knappers today. Because systematic flaking can create … See more Flint’s most notable property is its conchoidal fracture, which is diagnostic in all types of quartz. Conchoidal fractures appear as smoothly curving, concave breaks that are generally similar in shape to the inner surfaces … See more WebThe flint found at Flint Ridge tends to be a mixture of chert, chalcedony, jasper, and opal, and is renowned for its uncommon beauty. Aside from Flint Ridge, there are several …

Ohio Flint Types - Robert N. Converse - Google Books

WebFeb 13, 2008 · An Exceptional Flint Artifact. Among the resources that made Ohio attractive to its ancient native inhabitants was the seemingly endless supply of high quality flint. Flint was an indispensable part of their existence, allowing them to fashion the projectile points, knives, scrapers and cutters necessary to create other parts of their material ... WebFlint’s smoothness and the consistency of shape make it easy to spot but handle it carefully because the fragile rock breaks easily. Start your search in the aptly named Flint Ridge, Ohio, focusing on the marine limestone deposits on the south shore of Lake Erie. Brachiopod. Brachiopods also populate this area. herblay darty

Artifact Identification

http://ohiohistorycentral.org/w/Flint WebNov 23, 2016 · Chert, Flint & Chalcedony . There are three types of stones which are primarily found in the area. Chert, flint, and chalcedony are all present along Flint Ridge and the distinctions can be hard to figure out. … WebThere are many Ohio rocks that can be worked into tools such as chert, chalcedony, jasper, and agate, though all these types of stone are generally referred to as flint. However, flint is truly a purer form of chert. In Ohio, flint can be found bedded in layers of limestone or in deposits transported across the state by glaciers. herblay fff