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