Know all about Basalt and Claystone properties here. All properties of rocks are important as they define the type of rock and its application. Basalt belongs to Igneous Rocks while Claystone belongs to Sedimentary Rocks.Texture of Basalt is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular whereas that of Claystone is Clastic. Basalt appears Dull and Soft and Claystone appears Rough and Dull. The luster of Basalt is not available while that of Claystone is dull. Basalt is available in black, brown, light to dark grey colors whereas Claystone is available in black, blue, brown, green, grey, orange, red, white, yellow colors. The commercial uses of Basalt are an oil and gas reservoir, commemorative tablets, creating artwork, used in aquariums and that of Claystone are pottery.