Know all about Trondhjemite and Claystone properties here. All properties of rocks are important as they define the type of rock and its application. Trondhjemite belongs to Igneous Rocks while Claystone belongs to Sedimentary Rocks.Texture of Trondhjemite is Phaneritic whereas that of Claystone is Clastic. Trondhjemite appears Banded and Foilated and Claystone appears Rough and Dull. The luster of Trondhjemite is subvitreous to dull while that of Claystone is dull. Trondhjemite is available in black, brown, light to dark grey, white colors whereas Claystone is available in black, blue, brown, green, grey, orange, red, white, yellow colors. The commercial uses of Trondhjemite are cemetery markers, creating artwork and that of Claystone are pottery.