Know all about Rhyodacite and Anorthosite properties here. All properties of rocks are important as they define the type of rock and its application. Rhyodacite and Anorthosite belong to Igneous Rocks.Texture of Rhyodacite is Earthy whereas that of Anorthosite is Foliated, Glassy. Rhyodacite appears Skeletal and Anorthosite appears Layered, Banded, Veined and Shiny. The luster of Rhyodacite is greasy to dull while that of Anorthosite is pearly to subvitreous. Rhyodacite is available in black to grey, dark greenish - grey colors whereas Anorthosite is available in black, bluish - grey, brown, green, grey, light greenish grey, pink, white colors. The commercial uses of Rhyodacite are cemetery markers, creating artwork and that of Anorthosite are creating artwork, curling.