A grand selection of materials in a variety of colours, densities and textures. Obsidian, chrysolite, agate and tiger’s eye gemstone are only a few prime examples of the semi-precious stones you can find in a set of worry beads. These worry beads are very dainty and quite frail, so they are not recommended for daily use. We advise you to use them gently – just touch and stroke the beads or use them as decorative pieces This is a set of hematite worry beads. Hematite gemstone is the mineral form of iron oxide.