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