What is the hardest ore to find in Minecraft?

What is the hardest ore to find in Minecraft? As of Minecraft version 1.16, emerald ore is the rarest ore in Minecraft, despite tons of newer ores being added. Emerald ore is thirty times more rare than diamonds, and they only spawn in one-block veins, meaning players cannot find multiple emeralds grouped together, unlike other ores.

As of Minecraft version 1.16, emerald ore is the rarest ore in Minecraft, despite tons of newer ores being added. Emerald ore is thirty times more rare than diamonds, and they only spawn in one-block veins, meaning players cannot find multiple emeralds grouped together, unlike other ores.