Know all about Basalt and Diabase properties here. All properties of rocks are important as they define the type of rock and its application. Basalt and Diabase belong to Igneous Rocks.Texture of Basalt is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular whereas that of Diabase is Aphanitic, Granular. Basalt appears Dull and Soft and Diabase appears Vesicular. The luster of Basalt and Diabase is not available. Basalt is available in black, brown, light to dark grey colors whereas Diabase is available in dark grey to black colors. The commercial uses of Basalt are an oil and gas reservoir, commemorative tablets, creating artwork, used in aquariums and that of Diabase are an oil and gas reservoir, cemetery markers, commemorative tablets, laboratory bench tops, jewelry, sea defence, tombstones.