Know all about Trondhjemite and Sandstone properties here. All properties of rocks are important as they define the type of rock and its application. Trondhjemite belongs to Igneous Rocks while Sandstone belongs to Sedimentary Rocks.Texture of Trondhjemite is Phaneritic whereas that of Sandstone is Clastic, Granular, Rough. Trondhjemite appears Banded and Foilated and Sandstone appears Rough. The luster of Trondhjemite is subvitreous to dull while that of Sandstone is dull. Trondhjemite is available in black, brown, light to dark grey, white colors whereas Sandstone is available in beige, black, brown, colourless, cream, dark brown, green, grey, light green, light to dark grey, pink, red, white, yellow colors. The commercial uses of Trondhjemite are cemetery markers, creating artwork and that of Sandstone are an oil and gas reservoir, in aquifers, petroleum reservoirs, soil conditioner, source of magnesia (mgo), tombstones, used in aquariums.