This wind chime is tuned to a five-note pentatonic scale. Prairie jasper is an opaque, petrified stone whose color comes from mineral deposits. It often contains organic material and mineral oxides which give it interesting patterns. This chimes windcatcher has two pieces, a center leaf encircled by a ring of stone. Materials: Teak finish ash wood, 5 bronze aluminum tubes, genuine prairie jasper stone accents. Dimensions: 16" overall length.