Definition of chert
WebChert resembles flint; however chert consists of cryptocrystalline (having a crystalline structure so fine that no distinct particles are recognizable under the microscope) quartz or fibrous chalcedony. The key definition of chert is “crystals that are fibrous” and flint is “crystals that are extremely small and porous.” Websiliceous rock, any of a group of sedimentary rocks that consist largely or almost entirely of silicon dioxide (SiO2), either as quartz or as amorphous silica and cristobalite; included are rocks that have formed as chemical precipitates and excluded are those of detrital or fragmental origin. The most common siliceous rock is chert, which is a dense, …
Definition of chert
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Webchert: 1 n variety of silica containing microcrystalline quartz Types: taconite a variety of chert containing magnetite and hematite; mined as a low-grade iron ore Type of: silica , silicon dioxide , silicon oxide a white or colorless vitreous insoluble solid (SiO2); various forms occur widely in the earth's crust as quartz or cristobalite or ... WebChert definition: A variety of silica that contains microcrystalline quartz. Dictionary Thesaurus ... were generally of green jasper; hoe-blades (looking almost exactly like …
WebDefinition of chert in the Definitions.net dictionary. Meaning of chert . What does chert mean? Information and translations of chert in the most comprehensive dictionary …
WebApr 14, 2024 · Chert. Chert is a fine-grained sedimentary rock composed of quartz (SiO2) that is microcrystalline or cryptocrystalline quartz. It is … WebKnapping is the shaping of flint, chert, obsidian, or other conchoidal fracturing stone through the process of lithic reduction to manufacture stone tools, strikers for flintlock firearms, or to produce flat-faced stones for …
WebOct 9, 2024 · Chert is a sedimentary rock composed mostly of the mineral chalcedony—cryptocrystalline silica in crystals of submicroscopic size. This type of sedimentary rock can form in parts of the deep sea where the …
WebFeb 25, 2024 · chert (countable and uncountable, plural cherts) (geology, uncountable) Massive, usually dull-colored and opaque, quartzite, hornstone, impure chalcedony, or … clothes sorting tableWebApr 11, 2024 · Chert definition: a microcrystalline form of silica usually occurring as bands or layers of pebbles in... Meaning, pronunciation, translations and examples byrds anaheimWebJan 8, 2024 · Chert is widespread, but not widely known by the public as a distinct rock type. Chert has four diagnostic features: the waxy luster, a conchoidal (shell-shaped) fracture of the silica mineral chalcedony that … byrds allmusicWebCherts occur in a variety of geological settings, for example: - Bedded cherts may form by compaction and recrystallization of silica-rich biogenic sediments made of opaline tests of single-cell organisms (diatoms, radiolaria) or remains of silicious sponges, both in marine and in lake environments. During diagenesis, the silica in the ... byrds artificial energyWebchert and flint, very fine-grained quartz (q.v.), a silica mineral with minor impurities. Several varieties are included under the general term chert: jasper, chalcedony, agate (qq.v.), … byrds and crows bandWebMissouri Lithic Material. Ranges in color from a light tan to a pale to medium gray. Light mottling or streaking may be present. Barren Fork Chert ranges from a light to medium gray or a tan. Moderately translucent chert that ranges in color from a medium gray to dark bluish gray with brownish mottling and grayish streaks. byrds and bob dylanWebA chort (Russian: чёрт, Belarusian and Ukrainian: чорт, Serbo-Croatian čort or črt, Polish: czort and czart, Czech and Slovak: čert, Slovene: črt) is an anthropomorphic malign spirit or demon in Slavic folk tradition. Chorts are often depicted identically to Christian devils, with horns, hooves, and a skinny tail. [citation needed] In Slavic mythology, a singular Chort … clothes sorting hampers