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