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