Mid Century Modern Stamped Silver Malachite Ring Size 6

Sterling Silver Malachite Stone Ring Size 6 - likely a pinky ring. The inside band is tarnished but I never use silver cleaner. There is an “M.” engraving. There is no 925 stamp but the ring is engraved STER ( sterling silver). Afraid I don’t know how old this is but mid century definitely. My father had one l similair. The style is either brutalist or Native? This silver ring featuring a striking green natural malachite stone has symbolism and lore meanings Some lore: If ever there was a stone for merchants, malachite would be it. This always beautiful green-and-black banded gem material has long enjoyed tremendous popularity. Since no two stones look alike, each malachite piece can have a unique appeal. Customers could find personal or magical significance in unusual patterns. In addition, artisans could easily carve the stones into intriguing amulets. With such great marketability, no wonder this became "the salesman's stone. In some parts of Italy, people wore malachite pieces resembling eyes to ward away the Evil Eye. Typically, these pieces were triangular in shape and set in silver. Since the symbolic power of light could supposedly keep away "dark" magic influences, gem carvers also cut the rayed figure of the Sun into malachite amulets. Parents would also hang malachite beads on cradles to protect infants from evil spirits and bring tranquil sleep. For adults, holding a malachite in hand reputedly brought comfort and restful sleep.