Know all about Phonolite and Soapstone properties here. All properties of rocks are important as they define the type of rock and its application. Phonolite belongs to Igneous Rocks while Soapstone belongs to Metamorphic Rocks.Texture of Phonolite is Granular whereas that of Soapstone is Polished. Phonolite appears Banded and Foilated and Soapstone appears Dull, Banded and Foilated. The luster of Phonolite is greasy to dull while that of Soapstone is greasy. Phonolite is available in brown, buff, cream, green, grey, pink, white colors whereas Soapstone is available in black, black to grey, green, grey colors. The commercial uses of Phonolite are cemetery markers, creating artwork and that of Soapstone are cemetery markers, creating artwork, gemstone, jewelry, manufacture of soap, solvents, dyes, plastics and fibres, production of lime, source of magnesia (mgo).