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