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Flint, occasionally flintstone, is a sedimentary cryptocrystalline form of the mineral quartz, categorized as the variety of chert that occurs in chalk or marly limestone. Historically, flint was widely used to make stone tools and start fires. Flint occurs chiefly as nodules and masses in sedimentary rocks, such as chalks and limestones.
Flint is a hard, tough chemical or biochemical sedimentary rock that breaks with a conchoidal fracture. It is a form of microcrystalline quartz that is typically called "chert" by geologists. Flint often forms as nodules in sedimentary rocks such as chalk and marine limestones.
15 Sep 2023 · Flint is a naturally occurring sedimentary rock composed primarily of microcrystalline quartz, or silicon dioxide (SiO2). It is renowned for its historical significance and multifaceted uses throughout human history.
7 Apr 2024 · Flint rocks, often regarded as enigmatic stones, possess a multitude of intriguing features waiting to be explored. From their unique geological origins to the distinctive physical characteristics that set them apart, flint rocks hold a mysterious allure that captivates both geologists and historians.
Located along the Flint River, 66 miles (106 km) northwest of Detroit, it is a principal city within the region known as Mid Michigan. [9][10]At the 2020 census, Flint had a population of 81,252,[5]making it the twelfth-most populous cityin Michigan. The Flint metropolitan area is located entirely within Genesee County.
18 Sep 2022 · Top Things to Do in Flint, Michigan: See Tripadvisor's 11,509 traveller reviews and photos of 124 things to do when in Flint.
Flint is a high-quality variety of chert, a biochemical sedimentary rock made of cryptocrystalline quartz. It is very hard, with characteristic conchoidal fracturing that makes it exceptionally useful for the creation of tools like arrowheads. Flint comes in many colors but is usually dark gray or black.
