This is a particularly rare specimen with a prominent cat's eye effect. Please consider this valuable piece with its bi-color appearance. Tourmaline is a stone that crystallizes in a columnar shape. It has striations running down the column like a curtain. These are called tubular inclusions, and similar lines can be seen in kunzite and topaz. When a raw stone with strong striations is processed into round beads, it creates tourmaline beads with a strong cat's eye effect. This time, it's a rare bi-color bead of such cat's eye tourmaline. The transparency is somewhat subdued due to the prominence of the cat's eye, but in return, the cat's eye effect is clearly visible. Please consider this uncompromising grade. (Number of beads) 1 (Bead size) Approximately 8mm Shipping will be via Mercari's tracked delivery service. I will be slow to respond on weekdays, but I will always reply to your comments. ・Tourmaline ・Natural stone ・Schorl ・Power stone ・Beads #MorinoIshiyaSanTourmaline ← By stone #MorinoIshiyaSanBeads ← By item #MorinoIshiyaSanGreen ← By color #MorinoIshiyaSan ← All products