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