Know all about Trondhjemite and Breccia properties here. All properties of rocks are important as they define the type of rock and its application. Trondhjemite belongs to Igneous Rocks while Breccia belongs to Sedimentary Rocks.Texture of Trondhjemite is Phaneritic whereas that of Breccia is Brecciated, Clastic. Trondhjemite appears Banded and Foilated and Breccia appears Layered, Banded, Veined and Shiny. The luster of Trondhjemite is subvitreous to dull while that of Breccia is dull to pearly. Trondhjemite is available in black, brown, light to dark grey, white colors whereas Breccia is available in beige, black, blue, brown, buff, green, grey, orange, pink, purple, red, rust, white, yellow colors. The commercial uses of Trondhjemite are cemetery markers, creating artwork and that of Breccia are creating artwork, gemstone, jewelry.