Microlith
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A microlith is a small stone tool usually made of flint or chert and typically several centimeters in length and half a centimetre wide. They were made by humans from at least the Upper Paleolithic, a
Kebaran culture microliths from a flint prepared core, 22,000–18,000 BP.
Microlith productions, Kebaran culture, 22,000–18,000 BP
Backed edge bladelet
Truncated bladelet
Chert
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Chert is a hard, fine-grained sedimentary rock composed of microcrystalline or cryptocrystalline quartz, the mineral form of silicon dioxide. Chert is characteristically of biological origin, but may
Microlith
…A microlith is a small stone tool usually made of flint or chert and typically several centimeters in length and half a centimetre wide. They were made by humans from at least the Upper Paleolithic, across Africa…
A hand sized sample of chert
Chert (dark bands) in the Devonian Corriganville-New Creek limestone, Everett, Pennsylvania
Folded beds of chert comprising the Late Permian to Jurassic-aged Liminangcong Formation at Busuanga, Palawan, Philippines
Chert nodule within soft limestone at Akçakoca, Turkey