Silver can found In the Overworld under The Omber Villages. It is more powerful than Gold and can appear as either Pentagon shaped or as an ingot. It is not rare and can sometimes be found near Golds or Amethysts. Like Amethysts, they can craft Spears or Armour and are Omber Gems. To get it you should mine it with either Golden Pickaxe or Iron Pickaxe and is required smelting
they share the same sprite as iron.