Know all about Trondhjemite and Foidolite properties here. All properties of rocks are important as they define the type of rock and its application. Trondhjemite and Foidolite belong to Igneous Rocks.Texture of Trondhjemite is Phaneritic whereas that of Foidolite is Earthy. Trondhjemite appears Banded and Foilated and Foidolite appears Dull. The luster of Trondhjemite and Foidolite is subvitreous to dull. Trondhjemite is available in black, brown, light to dark grey, white colors whereas Foidolite is available in black, brown, colourless, green, grey, pink, white colors. The commercial uses of Trondhjemite are cemetery markers, creating artwork and that of Foidolite are cemetery markers, commemorative tablets, creating artwork.