Know all about Trondhjemite and Novaculite properties here. All properties of rocks are important as they define the type of rock and its application. Trondhjemite belongs to Igneous Rocks while Novaculite belongs to Sedimentary Rocks.Texture of Trondhjemite is Phaneritic whereas that of Novaculite is Banded, Glassy, Rough, Vitreous. Trondhjemite appears Banded and Foilated and Novaculite appears Glassy or Pearly. The luster of Trondhjemite is subvitreous to dull while that of Novaculite is waxy and dull. Trondhjemite is available in black, brown, light to dark grey, white colors whereas Novaculite is available in black, brown, green, grey, red, white colors. The commercial uses of Trondhjemite are cemetery markers, creating artwork and that of Novaculite are cemetery markers, gemstone, in aquifers, in fire-starting tools, jewelry, manufacture of tools, pebbles are used in ball mills to grind in ceramics industry, to determine the gold content of jewelry.