Know all about Ganister and Nephelinite properties here. All properties of rocks are important as they define the type of rock and its application. Ganister belongs to Sedimentary Rocks while Nephelinite belongs to Igneous Rocks.Texture of Ganister is Clastic, Granular, Rough whereas that of Nephelinite is Aphanitic. Ganister appears Rough and Nephelinite appears Skeletal. The luster of Ganister is dull while that of Nephelinite is vitreous to metallic. Ganister and Nephelinite 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 Nephelinite are creating artwork, soil conditioner, source of magnesia (mgo).