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