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