Characteristics related to grain size of rocks are called as texture. Here you can know more about texture of Porphyry and Chert. Texture of Porphyry is Porphyritic whereas that of Chert is Banded, Rough. Based on the texture of rocks, they are used for various purposes. Get detailed information about Porphyry vs Chert texture, color, appearance and maintenance in the next section.
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