Know all about Nephelinite and Felsite properties here. All properties of rocks are important as they define the type of rock and its application. Nephelinite and Felsite belong to Igneous Rocks.Texture of Nephelinite is Aphanitic whereas that of Felsite is Arborescent Patterned, Vitreous. Nephelinite appears Skeletal and Felsite appears Layered, Banded, Veined and Shiny. The luster of Nephelinite is vitreous to metallic while that of Felsite is vitreous. Nephelinite is available in black, brown, colourless, green, grey, white colors whereas Felsite is available in black, blue, brown, green, orange, red, tan, yellow colors. The commercial uses of Nephelinite are creating artwork, soil conditioner, source of magnesia (mgo) and that of Felsite are mirror, jewelry.