Know all about Troctolite and Hornblendite properties here. All properties of rocks are important as they define the type of rock and its application. Troctolite and Hornblendite belong to Igneous Rocks.Texture of Troctolite is Phaneritic whereas that of Hornblendite is Banded, Foliated, Massive. Troctolite appears Veined and Shiny and Hornblendite appears Foliated. The luster of Troctolite is not available while that of Hornblendite is vitreous to dull. Troctolite is available in dark grey to black colors whereas Hornblendite is available in black, brown, green, grey colors. The commercial uses of Troctolite are cemetery markers, commemorative tablets, laboratory bench tops, jewelry, sea defence, tombstones and that of Hornblendite are cemetery markers, commemorative tablets, creating artwork.