Argillite (/ ˈ ɑːr dʒ ɪ l aɪ t /) is a fine-grained sedimentary rock composed predominantly of indurated clay particles. Argillaceous rocks are basically lithified mud’s and oozes. They contain variable amounts of silt-sized particles. The argillites grade into shale when the fissile layering typical of shale is developed. Another name for poorly lithified argillites is mudstone.
So Argillite Artifacts are less appreciated than most Lithics materials. I think it is because the material degrades quickly and the flake patterns disappear, making them look bland. I really like this material because many of them are very thin. Argillite lends itself to large thin 1st stage performs. Hence these performs can produce large thin points and knives, and who doesn’t like a large thin blade? Pictured are points from sites in Lancaster Co. Pict. #1. #2 &3 is a Conewago point type also known as a Fox Creek. #4 is a Bradly spike. #5 & 6 These Picts. have Basel notched points known here as Milford / Eshback. A correction is the 4th point in from left, top row is a Limonitic material, Limonite is not quite limestone and not quite chert. The tip on this point was ground not flaked. I searched this tool and can't put a type to it. Any one know? Enjoy. Kim
So Argillite Artifacts are less appreciated than most Lithics materials. I think it is because the material degrades quickly and the flake patterns disappear, making them look bland. I really like this material because many of them are very thin. Argillite lends itself to large thin 1st stage performs. Hence these performs can produce large thin points and knives, and who doesn’t like a large thin blade? Pictured are points from sites in Lancaster Co. Pict. #1. #2 &3 is a Conewago point type also known as a Fox Creek. #4 is a Bradly spike. #5 & 6 These Picts. have Basel notched points known here as Milford / Eshback. A correction is the 4th point in from left, top row is a Limonitic material, Limonite is not quite limestone and not quite chert. The tip on this point was ground not flaked. I searched this tool and can't put a type to it. Any one know? Enjoy. Kim
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