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