Know all about Gneiss and Talc carbonate properties here. All properties of rocks are important as they define the type of rock and its application. Gneiss and Talc carbonate belong to Metamorphic Rocks.Texture of Gneiss is Banded, Foliated, Platy whereas that of Talc carbonate is Very Soft. Gneiss appears Foliated and Talc carbonate appears Soft. The luster of Gneiss is dull while that of Talc carbonate is pearly. Gneiss is available in black, brown, pink, red, white colors whereas Talc carbonate is available in colourless, grey, white colors. The commercial uses of Gneiss are cemetery markers, jewelry, tombstones, used in aquariums and that of Talc carbonate are manufacturing of baby powder.