Gold, silver or copper earrings worn by women of the Tu ethnic minority are decorated with patterns, inlaid with red coral or emerald, with five-colored beads hanging on them, and tassels are fastened on the beads. The most dainty should be the "seven up and nine down" or "five up and seven down" type of silver eardrops: several clusters of five-colored porcelain beads string the earrings together, and the long bead clusters hang before the breast, just like many necklaces. On the neck, there is a "Suo'er necklace" made of twenty or so round trumpet shells.
Source:
http://traditions.cultural-china.com/en/116Traditions4531.html