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