Know all about Diabase and Ganister properties here. All properties of rocks are important as they define the type of rock and its application. Diabase belongs to Igneous Rocks while Ganister belongs to Sedimentary Rocks.Texture of Diabase is Aphanitic, Granular whereas that of Ganister is Clastic, Granular, Rough. Diabase appears Vesicular and Ganister appears Rough. The luster of Diabase is not available while that of Ganister is dull. Diabase is available in dark grey to black colors whereas Ganister is available in beige, black, brown, colourless, cream, dark brown, green, grey, light green, light to dark grey, pink, red, white, yellow colors. The commercial uses of Diabase are an oil and gas reservoir, cemetery markers, commemorative tablets, laboratory bench tops, jewelry, sea defence, tombstones and that of Ganister are an oil and gas reservoir, in aquifers, petroleum reservoirs, soil conditioner, source of magnesia (mgo), tombstones.