Formation Of Chert

Posted on 19 Oct 2023

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Chert (Brian Head Formation, Middle Eocene to Lower Oligoc… | Flickr

Early chert formation by addition of pore-filling opal-ct cement Chert: sedimentary rock Chert sedimentary rock rocks geology microcrystalline cryptocrystalline fracture gray conchoidal silica smooth types stone weapons fossils masses material inches specimen

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