Know all about Hornblendite and Gneiss properties here. All properties of rocks are important as they define the type of rock and its application. Hornblendite belongs to Igneous Rocks while Gneiss belongs to Metamorphic Rocks.Texture of Hornblendite is Banded, Foliated, Massive whereas that of Gneiss is Banded, Foliated, Platy. Hornblendite appears Foliated and Gneiss appears Foliated. The luster of Hornblendite is vitreous to dull while that of Gneiss is dull. Hornblendite is available in black, brown, green, grey colors whereas Gneiss is available in black, brown, pink, red, white colors. The commercial uses of Hornblendite are cemetery markers, commemorative tablets, creating artwork and that of Gneiss are cemetery markers, jewelry, tombstones, used in aquariums.