The Cerrillos mine near Santa Fe was worked by the Native Americans 300 years before the Spanish Conquest of the Americas and has been closed for many years. This beautiful blue-green cluster bracelet has a center stone of 5/8" across and 1/4" tall. The smaller stones are 10mm by 7mm. The bracelet is 1 3/4" tall, 5 3/4" end to end plus a gap of 1 1/4" for a 7" wrist or a little smaller. Marked M (for artisan Pete Morgan) and sterling. Morgan is a Navajo, and brother to Henry and Harry Morgan. Excellent vintage condition. The picture shows the turquoise a little lighter than it is. The color is vibrant.