Know all about Porphyry and Foidolite properties here. All properties of rocks are important as they define the type of rock and its application. Porphyry and Foidolite belong to Igneous Rocks.Texture of Porphyry is Porphyritic whereas that of Foidolite is Earthy. Porphyry appears Dull and Foidolite appears Dull. The luster of Porphyry is dull while that of Foidolite is subvitreous to dull. Porphyry is available in black, brown, colourless, green, grey, red, rust, white colors whereas Foidolite is available in black, brown, colourless, green, grey, pink, white colors. The commercial uses of Porphyry are creating artwork, gemstone, jewelry and that of Foidolite are cemetery markers, commemorative tablets, creating artwork.