Uwe, I'm pretty sure this is a chevron-ish bead, made in India.
These beads, that come in a range of styles and colors all have some resemblance to the Venetian chevrons. Some more than others. However, they are made with a different technique. So no molding the hot glass in a star shaped mold, layer by layer (like the Venetians) but bundling strips of glass together. It is called the 'hot-strip method', I think.
Some of them can be pretty convincing. I think this is the time to confess that my first chevrons were these Indian ones. I had read something about them on BCN, and saw some at a vintage shop. I thought I'd made a great bargain......