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