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