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