Know all about Trondhjemite and Rhyolite properties here. All properties of rocks are important as they define the type of rock and its application. Trondhjemite and Rhyolite belong to Igneous Rocks.Texture of Trondhjemite is Phaneritic whereas that of Rhyolite is Aphanitic, Glassy, Porphyritic. Trondhjemite appears Banded and Foilated and Rhyolite appears Banded. The luster of Trondhjemite is subvitreous to dull while that of Rhyolite is earthy. Trondhjemite is available in black, brown, light to dark grey, white colors whereas Rhyolite is available in grey, white, light black colors. The commercial uses of Trondhjemite are cemetery markers, creating artwork and that of Rhyolite are gemstone, laboratory bench tops, jewelry.