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  2. Chert can be found in various settings, including12:
    • Hot spring deposits (siliceous sinter)
    • Banded iron formation (jaspilite)
    • Alkaline lakes
    • Bedded chert
    • Nodular chert
    • Carbonate rocks (such as greensand, limestone, chalk, and dolostone formations)
    • Primary deposits (such as jaspers and radiolarites)
    Some specific locations to find chert specimens include Missouri, Florida, Michigan, California, and New Mexico3.
    Learn more:
    Chert is found in settings as diverse as hot spring deposits (siliceous sinter), banded iron formation (jaspilite), or alkaline lakes. However, most chert is found either as bedded chert or as nodular chert.
    en.wikipedia.org/wiki/Chert
    Chert occurs in carbonate rocks that are greensand, limestone, chalk, and dolostone formations as exchange mineral, where it is formed as a result of some type of diagenesis. if where it occurs in chalk or marl, it is called flint. It also occurs in thin beds, when it is a primary deposit (such as with many jaspers and radiolarites).
    geologyscience.com/rocks/sedimentary-rocks/chert/

    The Best Locations

    • Missouri Missouri is probably the best state in the U.S. to find chert specimens due to its abundance here. ...
    • Florida Florida is similarly abundant in chert rocks and varieties like Missouri. ...
    howtofindrocks.com/where-to-find-chert/
     
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    Chert - Wikipedia

    Chert is found in settings as diverse as hot spring deposits (siliceous sinter), banded iron formation , [8] or alkaline lakes. [18] However, most chert is found either as bedded chert or as nodular chert. [8] See more

    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 … See more

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    Chert is of only modest economic importance today as a source of silica (quartz sand being much more important.) However, chert deposits may be associated with valuable deposits of iron, uranium, manganese, phosphorite, and petroleum See more

    Petrology – Branch of geology that studies the formation, composition, distribution and structure of rocks
    Archaeology – Study of human activity via material culture See more

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    In petrology, the term "chert" refers generally to all chemically precipitated sedimentary rocks composed primarily of microcrystalline, cryptocrystalline and microfibrous silica. Most cherts are nearly pure silica, with less than 5% other minerals (mostly See more

    The cryptocrystalline nature of chert, combined with its above average ability to resist weathering, recrystallization and metamorphism has made it an ideal rock for preservation of … See more

    There are numerous varieties of chert, classified based on their visible, microscopic and physical characteristics. Examples are: See more

    Photo & note re: Fig Tree Formation
    Microphotographs of Fig Tree fossils
    • Schopf, J.W. (1999) Cradle of Life: The Discovery of Earth's Earliest Fossils, Princeton University Press, 336 p. ISBN 0-691-00230-4 See more

     
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  5. Chert: Identification, Pictures & Info for Rockhounds

  6. Where to Find Chert: Best Environments & Locations …

    WEBMar 27, 2023 — Chert is also often found interbedded with shale or limestone. Other typical environments to find chert include gravels, beaches, mines, quarries, road cuts, exposures, streams, and creek

  7. Chert Rock | Types, Properties, Composition, …

    WEBApr 23, 2023 — It can be found in chalk or marly limestone formations and formed by a replacement of calcium carbonate with silica. It’s commonly found as nodules. Red to brown chert receive their color …

  8. Chert Rocks: Identification, Characteristics, Pictures, and More

  9. Chert: Sedimentary Rock - Pictures, Definition, …

    WEBTons of chert fragments have been found at locations where these objects were produced in what was one of the earliest manufacturing activities of people. Chert is not found everywhere. It was a precious commodity that …

  10. All About the Rock Called Chert - ThoughtCo

    WEBNov 6, 2019 — Chert is the name for a widespread type of sedimentary rock that is made of silica (silicon dioxide or SiO 2 ). The most familiar silica mineral is quartz in microscopic or even invisible crystals; that is, …

  11. Chert Rock: What is Chert? - Rock and Mineral Planet

    WEBOct 30, 2021 — Where is Chert found? Chert can be found in many locations throughout the world. Chert can be found in oceans and on beaches. It will be found above the surface in dry locations or mountains as it was …

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  13. Chert-Definition and Types | Geology Tutorials, Articles, Photos

  14. Chert - The More You Know, The Less You Know About Chert

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  16. Beyond Flint: Exploring the Diverse World of Chert Rocks

  17. Chert Formation, Identification & Composition | Study.com

  18. Chert and flint | Mineral, Sedimentary Rock | Britannica

  19. Gallery of Chert Rocks and Gemstones - ThoughtCo

  20. Geology - rocks and minerals

  21. Chert - Minerals Education Coalition

  22. Chert - Wikiwand / articles

  23. How to Identify Flint: 8 Steps (with Pictures) - wikiHow

  24. Chert's Timeless Appeal: How It Shaped History and Modern Uses

  25. How to Identify Chert (5 Tips for Beginners) - Yes Dirt

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