Know all about Shoshonite and Rhyodacite properties here. All properties of rocks are important as they define the type of rock and its application. Shoshonite and Rhyodacite belong to Igneous Rocks.Texture of Shoshonite is Porphyritic whereas that of Rhyodacite is Earthy. Shoshonite appears Dull and Rhyodacite appears Skeletal. The luster of Shoshonite is dull while that of Rhyodacite is greasy to dull. Shoshonite is available in brown- black, dark brown colors whereas Rhyodacite is available in black to grey, dark greenish - grey colors. The commercial uses of Shoshonite and Rhyodacite are cemetery markers, creating artwork.