Know all about Diabase and Variolite properties here. All properties of rocks are important as they define the type of rock and its application. Diabase and Variolite belong to Igneous Rocks.Texture of Diabase is Aphanitic, Granular whereas that of Variolite is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular. Diabase appears Vesicular and Variolite appears Dull and Soft. The luster of Diabase and Variolite is not available. Diabase is available in dark grey to black colors whereas Variolite is available in black, brown, light to dark grey 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 Variolite are cemetery markers, creating artwork.