Ore (feature)

An ore[1][2][3] is a feature consisting of a natural deposit of ores or other blocks in the ground.

The ore feature has two types: ore blobs and scatter ores.

An ore blob is an ellipsoidal cluster of blocks. In the overworld, underground deposits of dirt and gravel are generated in this form, followed by the more precious ores, like coal, copper, iron, gold, redstone, diamond, emerald (in mountains biomes), and lapis lazuli. They can form only in stone, deepslate, andesite, diorite, granite, and tuff‌[JE only] (also in their polished variants in Bedrock Edition, replacing parts of structures). Two or more ores can form next to each other and appear as an ore made of more than one material.