Minecraft wiki entry for Andesite, associated text: Andesite can generate in the Overworld in the form of blobs. In Bedrock Edition, andesite attempts to generate in two batches. The first batch generate 2 times per chunk in blobs of size 0-862, from elevations 0 to 60, in all biomes. The second batch has 1⁄6 chance to generate blobs of size 0-862, from elevation 64 to 128. Andesite can replace stone, diorite, and granite. In Java Edition, andesite only attempts to generate twice per chunk and only at level zero or above. However, the blobs are size 0-862. Andesite can replace stone, diorite, granite, tuff, and deepslate.