Know all about Diabase and Tonalite properties here. All properties of rocks are important as they define the type of rock and its application. Diabase and Tonalite belong to Igneous Rocks.Texture of Diabase is Aphanitic, Granular whereas that of Tonalite is Phaneritic. Diabase appears Vesicular and Tonalite appears Banded and Foilated. The luster of Diabase is not available while that of Tonalite is subvitreous to dull. Diabase is available in dark grey to black colors whereas Tonalite is available in black, brown, light to dark grey, white 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 Tonalite are cemetery markers, creating artwork.