Know all about Oil shale and Hyaloclastite properties here. All properties of rocks are important as they define the type of rock and its application. Oil shale belongs to Sedimentary Rocks while Hyaloclastite belongs to Igneous Rocks.Texture of Oil shale is Splintery whereas that of Hyaloclastite is Pyroclastic. Oil shale appears Muddy and Hyaloclastite appears Dull. The luster of Oil shale is dull while that of Hyaloclastite is dull and grainy. Oil shale and Hyaloclastite are available in black, brown, buff, green, grey, red, yellow colors. The commercial uses of Oil shale are an oil and gas reservoir and that of Hyaloclastite are cemetery markers, creating artwork.