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