Aldaca Mexico crushed turquoise and sterling silver dangle pin pendant

Condition: Preowned/Used. Condition is good. One of the dangle ornaments is missing. (There should be five, but there are only four.) Stamp on back says “Aldaca Mexico.” Tarnished condition. Has a pin fastener on the back and also a loop so it can be worn as a pendant. It measures one inch in circumference.