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