Apatite LEARNING | COMMUNICATION | ACCEPTANCE Apatite is known to enhance intellect and aid in learning. A great gift for young children and those who have trouble focusing. It increases motivation and communication. This bracelet consists of 8mm beads on a stretch cord. The beads have a shiny finish. This listing is for ONE (1) Blue Apatite Bracelet. **NEW 4mm size available. All photos are of 8mm size, except the last photos which shows size comparison. Approximate weight: 0.55oz Approximate bead size: 8mm or 6mm (select size) Approximate inside diameter: 2.3" Please note, stones are natural and WILL vary in precise size, shape, color, pattern, etc., and may not exactly match photo.