Know all about Foidolite and Suevite properties here. All properties of rocks are important as they define the type of rock and its application. Foidolite belongs to Igneous Rocks while Suevite belongs to Metamorphic Rocks.Texture of Foidolite is Earthy whereas that of Suevite is Earthy. Foidolite appears Dull and Suevite appears Banded. The luster of Foidolite is subvitreous to dull while that of Suevite is earthy. Foidolite and Suevite are available in black, brown, colourless, green, grey, pink, white colors. The commercial uses of Foidolite are cemetery markers, commemorative tablets, creating artwork and that of Suevite are as a feed additive for livestock, gemstone, metallurgical flux, source of magnesia (mgo).