Know all about Foidolite and Claystone properties here. All properties of rocks are important as they define the type of rock and its application. Foidolite belongs to Igneous Rocks while Claystone belongs to Sedimentary Rocks.Texture of Foidolite is Earthy whereas that of Claystone is Clastic. Foidolite appears Dull and Claystone appears Rough and Dull. The luster of Foidolite is subvitreous to dull while that of Claystone is dull. Foidolite is available in black, brown, colourless, green, grey, pink, white colors whereas Claystone is available in black, blue, brown, green, grey, orange, red, white, yellow colors. The commercial uses of Foidolite are cemetery markers, commemorative tablets, creating artwork and that of Claystone are pottery.