Know all about Porphyry and Diabase properties here. All properties of rocks are important as they define the type of rock and its application. Porphyry and Diabase belong to Igneous Rocks.Texture of Porphyry is Porphyritic whereas that of Diabase is Aphanitic, Granular. Porphyry appears Dull and Diabase appears Vesicular. The luster of Porphyry is dull while that of Diabase is not available. Porphyry is available in black, brown, colourless, green, grey, red, rust, white colors whereas Diabase is available in dark grey to black colors. The commercial uses of Porphyry are creating artwork, gemstone, jewelry and that of Diabase are an oil and gas reservoir, cemetery markers, commemorative tablets, laboratory bench tops, jewelry, sea defence, tombstones.