Know all about Nephelinite and Basaltic Trachyandesite properties here. All properties of rocks are important as they define the type of rock and its application. Nephelinite and Basaltic Trachyandesite belong to Igneous Rocks.Texture of Nephelinite is Aphanitic whereas that of Basaltic Trachyandesite is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular. Nephelinite appears Skeletal and Basaltic Trachyandesite appears Dull and Soft. The luster of Nephelinite is vitreous to metallic while that of Basaltic Trachyandesite is not available. Nephelinite is available in black, brown, colourless, green, grey, white colors whereas Basaltic Trachyandesite is available in black, brown, light to dark grey colors. The commercial uses of Nephelinite are creating artwork, soil conditioner, source of magnesia (mgo) and that of Basaltic Trachyandesite are an oil and gas reservoir, commemorative tablets, creating artwork.