A stretch bracelet in 8 mm pink tourmaline beads.
Tourmaline is one of the most colour-varied minerals there is, and the pink comes from manganese sitting in a crystal structure that will accept a remarkable range of elements. The same species runs from colourless through pink, red, green, blue and black depending on what was available while it grew.
Mineral: Tourmaline, pink variety (elbaite)
Crystal system: Trigonal
Origin: Not recorded
Hardness: 7 to 7.5 on the Mohs scale; durable, though beads can part on a hard knock
Treatment: None
Approx. inner circumference: 7 cm unstretched
Bead diameter: 8 mm
Approx. weight: 15 g
Stringing: Elastic, stretch fit
Photographed as an example. These are strung in batches from the same material, so yours will be closely similar in colour and pattern but not the exact bracelet pictured.