Know all about Diabase and Phyllite properties here. All properties of rocks are important as they define the type of rock and its application. Diabase belongs to Igneous Rocks while Phyllite belongs to Metamorphic Rocks.Texture of Diabase is Aphanitic, Granular whereas that of Phyllite is Phyllitic Sheen, Slaty. Diabase appears Vesicular and Phyllite appears Crinkled or Wavy. The luster of Diabase is not available while that of Phyllite is phyllitic. Diabase is available in dark grey to black colors whereas Phyllite is available in black to grey, light greenish 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 Phyllite are cemetery markers, commemorative tablets, creating artwork, writing slates.