Know all about Nephelinite and Diabase properties here. All properties of rocks are important as they define the type of rock and its application. Nephelinite and Diabase belong to Igneous Rocks.Texture of Nephelinite is Aphanitic whereas that of Diabase is Aphanitic, Granular. Nephelinite appears Skeletal and Diabase appears Vesicular. The luster of Nephelinite is vitreous to metallic while that of Diabase is not available. Nephelinite is available in black, brown, colourless, green, grey, white colors whereas Diabase is available in dark grey to black colors. The commercial uses of Nephelinite are creating artwork, soil conditioner, source of magnesia (mgo) and that of Diabase are an oil and gas reservoir, cemetery markers, commemorative tablets, laboratory bench tops, jewelry, sea defence, tombstones.