This oblong shaped pin is so simply enhanced with equidistant placement of tear- drop shaped, hand-cut turquoise stones framed with alternating raindrops of silver, soldered in place.
The "eye" of the pin is outlined with a single strand of twisted silver wire, showcasing two additional stones at center separated by a single silver ball.
The best book to explain the steps in creating Zuni jewelry is Oscar Branson's Indian Jewelry Making. Volume II.