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