Sterling Silver Mountain Ring and Bronze Moon - Moon Jewelry. This bold, textured, Sterling Silver Mountain and Bronze Moon Mixed Metal Ring will add a touch of magic to your jewelry collection! It's wide profile provides the perfect canvas for the raised mountain range and crescent moon. Black oxidation creates the night sky as a beautiful backdrop to the silver and bronze metals. Handmade. The black finish is a beautiful oxidized treatment on the surface of the silver. Please note that over time the black finish will slowly wear off to reveal the shiny silver underneath. This process is accelerated on finger rings due to wear and tear and exposure to soap, water, lotion, etc. This results in a rustic, timeworn quality which many admire.