Gemstone, Mookaite Windalia Radiolarite, natural, 10x10 mm, round beads - A-grade, Mohs' hardness 5 6.5-7.0 - one unit is +/- 19 cm and has +/- 19 beads
Gemstone, Mookaite Windalia Radiolarite, natural, 12x12 mm, round beads - A-grade, Mohs' hardness 5 6.5-7.0 - one unit is +/- 19 cm and has +/- 16 beads
Gemstone, Mookaite Windalia Radiolarite, natural, Western Australia, 6x6 mm, round beads – faceted, metallic sheen - Mohs' hardness 5 6.5-7.0 - one unit is +/- 19 cm and has +/- 32 beads
Gemstone, Mookaite Windalia Radiolarite, natural, 6x6 mm, round beads – faceted, metallic sheen- Mohs' hardness 5 6.5-7.0 - one unit is +/- 19 cm and has +/- 32 beads
Gemstone, Mookaite Windalia Radiolarite, natural, 8x8 mm, round beads – frosted – Mohs' hardness 5 6.5-7.0 - one unit is +/- 19 cm and has +/- 23 beads
Gemstone, Mookaite Windalia Radiolarite, natural, 8x8 mm, round beads – in small facets, metallic sheen - Mohs' hardness 5 6.5-7.0 - one unit is +/- 19 cm and has +/- 23 beads