Old Navajo wrought sterling silver raindrop ring that is set with rare Carlin Mine turquoise. It is set in a plain bezel. The shand is strong and thick with cold chisel splits and a large hand dropped raindrop at each split. It is a size 10 and was originally a man's ring. These are unisex though.  Face measures 7/8" long. The black on each side of the turquoise is chert or host rock. This turquoise formed ion veins in this chert black matrix making for a dramatic contrast. The Carlin mine was closed forever many years ago and this stone is highly collected. Weight: 10.8 grams. C. 1920-1940.