Know all about Rhyodacite and Vogesite properties here. All properties of rocks are important as they define the type of rock and its application. Rhyodacite and Vogesite belong to Igneous Rocks.Texture of Rhyodacite is Earthy whereas that of Vogesite is Porphyritic. Rhyodacite appears Skeletal and Vogesite appears Dull, Banded and Foilated. The luster of Rhyodacite is greasy to dull while that of Vogesite is subvitreous to dull. Rhyodacite is available in black to grey, dark greenish - grey colors whereas Vogesite is available in black, bluish - grey, brown, dark greenish - grey, green, grey colors. The commercial uses of Rhyodacite are cemetery markers, creating artwork and that of Vogesite are an oil and gas reservoir, as a feed additive for livestock, gemstone, metallurgical flux, production of lime, soil conditioner, source of magnesia (mgo).