Silver Ore (block)

Silver Ore is a mineral block found underground. It's medium rare, and a weak/medium strong mineral that can be used to craft tools and armor. Silver ore requires an iron pickaxe or better to mine, and it will drop between one and three silver ore items, which are smelted three at a time to get a  silver ingot. Silver ingots can be used to craft weak/medium strong tools and armor, as well as accessories.

Natural Occurrence
Silver occurs from bedrock, up to layer 48. It's slightly more common than gold, but it's still quite rare.