A stretch bracelet in 8 mm fluorite beads, banded through greens, purples and clears.
Fluorite is the most colour-varied mineral there is, and often several colours in a single crystal, which is why the beads vary down the strand instead of matching.
It is also the softest stone in this bracelet range by a clear margin, at 4 on the Mohs scale. That is soft enough to be scratched by ordinary household dust, which is mostly quartz at 7. Fluorite also has perfect cleavage in four directions, so a knock on a hard edge can take a chip off a bead rather than scuff it. This is an occasional-wear bracelet, not a daily one, and it wants storing away from your harder pieces.
Mineral: Fluorite (calcium fluoride, CaF₂)
Crystal system: Cubic
Origin: Not recorded
Hardness: 4 on the Mohs scale; soft, and the softest in this range. Occasional wear rather than daily
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.