Know all about Trondhjemite and Mylonite properties here. All properties of rocks are important as they define the type of rock and its application. Trondhjemite belongs to Igneous Rocks while Mylonite belongs to Metamorphic Rocks.Texture of Trondhjemite is Phaneritic whereas that of Mylonite is Foliated. Trondhjemite appears Banded and Foilated and Mylonite appears Dull, Banded and Foilated. The luster of Trondhjemite is subvitreous to dull while that of Mylonite is shiny. Trondhjemite is available in black, brown, light to dark grey, white colors whereas Mylonite is available in black to grey colors. The commercial uses of Trondhjemite are cemetery markers, creating artwork and that of Mylonite are creating artwork, gemstone, jewelry.