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