Know all about Ganister and Foidolite properties here. All properties of rocks are important as they define the type of rock and its application. Ganister belongs to Sedimentary Rocks while Foidolite belongs to Igneous Rocks.Texture of Ganister is Clastic, Granular, Rough whereas that of Foidolite is Earthy. Ganister appears Rough and Foidolite appears Dull. The luster of Ganister is dull while that of Foidolite is subvitreous to dull. Ganister and Foidolite are available in beige, black, brown, colourless, cream, dark brown, green, grey, light green, light to dark grey, pink, red, white, yellow colors. The commercial uses of Ganister are an oil and gas reservoir, in aquifers, petroleum reservoirs, soil conditioner, source of magnesia (mgo), tombstones and that of Foidolite are cemetery markers, commemorative tablets, creating artwork.