Know all about Basalt and Rhyodacite properties here. All properties of rocks are important as they define the type of rock and its application. Basalt and Rhyodacite belong to Igneous Rocks.Texture of Basalt is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular whereas that of Rhyodacite is Earthy. Basalt appears Dull and Soft and Rhyodacite appears Skeletal. The luster of Basalt is not available while that of Rhyodacite is greasy to dull. Basalt is available in black, brown, light to dark grey colors whereas Rhyodacite is available in black to grey, dark greenish - grey colors. The commercial uses of Basalt are an oil and gas reservoir, commemorative tablets, creating artwork, used in aquariums and that of Rhyodacite are cemetery markers, creating artwork.