↑ a b The odds of finding any of this item in a single chest.↑ a b The weight of this item relative to other items in the pool.↑ a b The size of stacks (or for unstackable items, number) of this item on any given roll.In Bedrock Edition, each mineshaft chest contains items drawn from 3 pools, with the following distribution: Abandoned passageways: accessory corridors with cobwebs concealing cave spider spawners.Staircases: diagonal tunnels, stair blocks are not used.Crossings: dual-floor, 5x5 intersections supported by wooden columns.Cobwebs do not generate if they would not be connected to solid blocks, while corridors generate with log pillars, chains and fences for support if they are in mid-air.

The tunnels are connected by incomplete rail systems on the ground, on which minecarts with chests generate uncommonly. On long corridors, these supports are placed four blocks away from each other while some have missing planks which may be filled up with cobwebs or blocks of stone jutting out from the top. Some places are decorated with torches and cobwebs.

Corridors: some 3×3 tunnels and junctions are supported by planks and fences.

Starting point: a parlor with a 10×10 dirt floor, an arched ceiling and one to four exits in each direction.‌.

A mineshaft generating across a large cave.‌

Minecraft underground 2