Know all about Phonolite and Shale properties here. All properties of rocks are important as they define the type of rock and its application. Phonolite belongs to Igneous Rocks while Shale belongs to Sedimentary Rocks.Texture of Phonolite is Granular whereas that of Shale is Clastic, Splintery. Phonolite appears Banded and Foilated and Shale appears Muddy. The luster of Phonolite is greasy to dull while that of Shale is dull. Phonolite is available in brown, buff, cream, green, grey, pink, white colors whereas Shale is available in black, brown, buff, green, grey, red, yellow colors. The commercial uses of Phonolite are cemetery markers, creating artwork and that of Shale are creating artwork, pottery.