Know all about Rhyolite and Troctolite properties here. All properties of rocks are important as they define the type of rock and its application. Rhyolite and Troctolite belong to Igneous Rocks.Texture of Rhyolite is Aphanitic, Glassy, Porphyritic whereas that of Troctolite is Phaneritic. Rhyolite appears Banded and Troctolite appears Veined and Shiny. The luster of Rhyolite is earthy while that of Troctolite is not available. Rhyolite is available in grey, white, light black colors whereas Troctolite is available in dark grey to black colors. The commercial uses of Rhyolite are gemstone, laboratory bench tops, jewelry and that of Troctolite are cemetery markers, commemorative tablets, laboratory bench tops, jewelry, sea defence, tombstones.