WebMar 31, 2009 · On the Mohs Scale of Hardness, chert has a hardness of 7. ... On the Mohs Scale of Hardness, chert has a hardness of 7. Wiki User. ∙ 2009-03-31 03:50:40. This answer is: WebChert is very hard and its conchoidal fractures can leave sharp edges which do not dull easily. For this reason it was one of the earliest materials used for tools and weapons. Uses. In some areas, chert is ubiquitous as …

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WebHardness (H) is the resistance of a mineral to scratching. It is a property by which minerals may be described relative to a standard scale of 10 minerals known as the Mohs scale of hardness. The degree of hardness is determined by observing the comparative ease or difficulty with which one mineral is scratched by another or by a steel tool. For measuring … WebChert is a chalcedony occurring as a hard sedimentary rock. It is commonly of organic origin, but it can also occur as an inorganic chemical precipitate found inside petrified … sayings with the word cake

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WebDec 16, 2009 · Slow Going: Drilling Through Cherts. 19.06.2008 For the next few days we will be drilling through a rock type known as chert, this is a very hard rock made of silicon oxide and sometimes also called flint. This will be tough going for the drilling equipment as chert is one of the hardest rocks (see Mohs hardness scale) known to … WebCherts are tough, compact rocks with low porosity that are composed mainly of microcrystalline quartz and varying amounts of impurities (Folk et al 1952; Smith 1960). … Chert is a hard, fine-grained sedimentary rock composed of microcrystalline or cryptocrystalline quartz, the mineral form of silicon dioxide (SiO2). Chert is characteristically of biological origin, but may also occur inorganically as a chemical precipitate or a diagenetic replacement, as in petrified wood. Chert is typically composed of the petrified remains of siliceous ooze, the biog… scame smart wall box