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