Vintage Nuumite 925 silver ring size 7

Beautiful chunky nuumite ring set in 925 silver. Stamped on inner band. A rock of volcanic origin, nuummite was probably formed 3 billion years ago. Although it's one of the oldest rocks on Earth, it wasn't discovered and described until the 1980s. Found only in Greenland, nuummite is very difficult to mine due to the climate and freezing temperatures. It's very rare and is sometimes polished into gemstones. This ring is in excellent condition and would be a great gift for that stone lover in your life!