Gemstone, rainforest jasper or rhyolite, Australia, natural, 10x10 mm, round beads – Mohs' hardness 6,5-7.0 - one unit is +/- 19 cm and has +/- 19 beads
Gemstone, rainforest jasper or rainforest rhyolite, Australia, natural, 8x8 mm, round beads – Mohs' hardness 6,5-7.0 - one unit is +/- 19 cm and has +/- 23 beads