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  • Concretion - Wikipedia
    A concretion is a hard and compact mass formed by the precipitation of mineral cement within the spaces between particles, and is found in sedimentary rock or soil [1] Concretions are often ovoid or spherical in shape, although irregular shapes also occur
  • Concretions: What Are These Bizarre Rock Formations? (And Whats Inside . . .
    Concretions are formed through the precipitation of minerals in sediment before it hardens Essentially, they became mineralized before the rest of the surrounding rock Concretions form early on in the sedimentary stone cycle if they’re present
  • Concretions - Paleontological Research Institution
    Concretions form inside sediments before they harden into rocks, when they are still soft, as minerals within a sediment precipitate, sometimes in successive layers around a nucleus such as a shell or pebble
  • Concretions Picture Gallery - ThoughtCo
    Concretions are cemented bodies of sediment that are found in sedimentary rock or soil and mostly spherical in shape
  • Septarian Concretion: What Is It and Characteristics - Geology In
    Concretions are formed from mineral precipitation around some kind of nucleus while a nodule is a replacement body Concretion: A concretion is a mass of sediment or mineral that hardens around a nucleus, such as a fossil, shell fragment, or organic material
  • Exploring Concretion: Formation, Types, and Importance
    Concretions are solid masses of mineral matter that form within sedimentary rocks and sediments, often taking on a range of shapes and sizes They typically arise when sediment undergoes chemical alteration
  • What Is A Concretion? - WorldAtlas
    Often mistaken for bones, turtle shells, or fossil eggs, concretions are geological features found in sedimentary rock and soil A concretion is a hard mass that forms when rock minerals precipitate in cracks or cavities, or through the build-up of sediment
  • 37 Facts About Concretion
    Concretions are natural rock formations that often look like they were sculpted by an artist They form when minerals precipitate around a core, usually a fossil or organic material, creating a hard, compact mass


















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