Vtg sterling & malachite or glass brooch pin

Vintage sterling pin made in Mexico. Carved face is either glass or possibly malachite. Likely from the 60s this pin is in excellent vintage condition. Slight patina in places throughout the pin. A cleaning will make this pin shine like the day it was new. Measures 2 7/16" wide, 1 13/16" tall weighs 18 grams mcm, boho, chic, handmade, craftsmanship, silver