The Stone Mountain turquoise mine in Northern Nevada is a small mine that produces hard, gem quality turquoise in colors ranging from different shades of green to a medium blue with a light, reddish brown matrix to golden brown matrix. If you are a fan of green turquoise, you can't help but love what comes out of the Stone Mountain mine. This is a dainty, green stone, solid sterling silver pendant by gifted Navajo artist Ella Peters. Hallmarked on the back with her full name and "Sterling". Pendant measures 3/8" by 1/4" (NOT including the bail). The 1/4" bail has a 4mm opening. Comes with a Certificate of Authenticity.