Mineshaft

A Mineshaft is a default MC Structure that can be found underground or underwater.

Loot

Each mineshaft chest contains items drawn from 8 pools (one per category), with the following distribution:

Category	Item	Stack size					Weight					Chance	Avg. per chest
		1x	2x	1-3x	2-4x	2-5x	1x	2x	1-3x	2-4x	2-5x
Artifacts	Omega Shard	1	—	—	—	—	1/53	—	—	—	—	1.9%	0.019
Artifacts	Alpha Shard	1	—	—	—	—	1/53	—	—	—	—	1.9%	0.019
Artifacts	Delta Shard	1	—	—	—	—	1/53	—	—	—	—	1.9%	0.019
Shards	Red Shard	—	—	1–2	—	—	—	—	5/39	—	—	23.5%	0.385
Shards	Blue Shard	—	—	1–2	—	—	—	—	5/39	—	—	23.5%	0.385
Shards	Yellow Shard	—	—	1–2	—	—	—	—	5/39	—	—	23.5%	0.385
Shards	Green Shard	—	—	1–2	—	—	—	—	5/39	—	—	23.5%	0.385
Shards	Black Shard	—	—	1–2	—	—	—	—	2/39	—	—	9.9%	0.154
Shards	White Shard	—	—	1–2	—	—	—	—	2/39	—	—	9.9%	0.154
Tumblestone	Raw Tumblestone	—	—	1–3	—	—	—	—	10/18	—	—	75.7%	2.222
Tumblestone	Raw Sky Tumblestone	—	—	1–3	—	—	—	—	3/18	—	—	29.8%	0.667
Tumblestone	Raw Black Tumblestone	—	—	1–3	—	—	—	—	5/18	—	—	46%	1.111
Treasure	Relic Band	1	—	—	—	—	2/69	—	—	—	—	2.9%	0.029
Treasure	Relic Crown	1	—	—	—	—	1/69	—	—	—	—	1.4%	0.014
Treasure	Relic Copper	1	—	—	—	—	3/69	—	—	—	—	4.3%	0.043
Treasure	Relic Gold	1	—	—	—	—	1/69	—	—	—	—	1.4%	0.014
Treasure	Relic Silver	1	—	—	—	—	3/69	—	—	—	—	4.3%	0.043
Treasure	Relic Statue	1	—	—	—	—	2/69	—	—	—	—	2.9%	0.029
Treasure	Relic Vase	1	—	—	—	—	1/69	—	—	—	—	1.4%	0.014
Treasure	Rare Bone	1	—	—	—	—	3/69	—	—	—	—	4.3%	0.043
Treasure	Nugget	1	—	—	—	—	2/69	—	—	—	—	2.9%	0.029
Treasure	Big Nugget	1	—	—	—	—	1/69	—	—	—	—	1.4%	0.014
Evo stones	Water Stone	—	1	—	—	—	—	1/25	—	—	—	7.8%	0.080
Evo stones	Fire Stone	—	1	—	—	—	—	1/25	—	—	—	7.8%	0.080
Evo stones	Leaf Stone	—	1	—	—	—	—	1/25	—	—	—	7.8%	0.080
Evo stones	Thunder Stone	—	1	—	—	—	—	1/25	—	—	—	7.8%	0.080
Evo stones	Moon Stone	—	1	—	—	—	—	1/25	—	—	—	7.8%	0.080
Evo stones	Sun Stone	—	1	—	—	—	—	1/25	—	—	—	7.8%	0.080
Evo stones	Dawn Stone	—	1	—	—	—	—	1/25	—	—	—	7.8%	0.080
Evo stones	Dusk Stone	—	1	—	—	—	—	1/25	—	—	—	7.8%	0.080
Evo stones	Shiny Stone	—	1	—	—	—	—	1/25	—	—	—	7.8%	0.080
Evo stones	Ice Stone	—	1	—	—	—	—	1/25	—	—	—	7.8%	0.080
Fossils	Covered Helix Fossil	1	—	—	—	—	1/30	—	—	—	—	3.3%	0.033
Fossils	Covered Dome Fossil	1	—	—	—	—	1/30	—	—	—	—	3.3%	0.033
Fossils	Covered Old Amber	1	—	—	—	—	1/30	—	—	—	—	3.3%	0.033
Fossils	Covered Root Fossil	1	—	—	—	—	1/30	—	—	—	—	3.3%	0.033
Fossils	Covered Claw Fossil	1	—	—	—	—	1/30	—	—	—	—	3.3%	0.033
Fossils	Covered Skull Fossil	1	—	—	—	—	1/30	—	—	—	—	3.3%	0.033
Fossils	Covered Armor Fossil	1	—	—	—	—	1/30	—	—	—	—	3.3%	0.033
Fossils	Covered Cover Fossil	1	—	—	—	—	1/30	—	—	—	—	3.3%	0.033
Fossils	Covered Plume Fossil	1	—	—	—	—	1/30	—	—	—	—	3.3%	0.033
Fossils	Covered Jaw Fossil	1	—	—	—	—	1/30	—	—	—	—	3.3%	0.033
Fossils	Covered Sail Fossil	1	—	—	—	—	1/30	—	—	—	—	3.3%	0.033
Ores	Silver Ore	—	—	—	1–2	—	—	—	—	7/40	—	43.2%	0.788
Ores	Bauxite Ore	—	—	—	1–2	—	—	—	—	7/40	—	43.2%	0.788
Ores	Silicon	—	—	—	1–2	—	—	—	—	5/40	—	32.6%	0.563
Ores	Amethyst	—	—	—	1–2	—	—	—	—	5/40	—	32.6%	0.563
Ores	Crystal	—	—	—	1–2	—	—	—	—	5/40	—	32.6%	0.563
Ores	Sapphire	—	—	—	1–2	—	—	—	—	3/40	—	20.7%	0.338
Ores	Ruby	—	—	—	1–2	—	—	—	—	3/40	—	20.7%	0.338
Vanilla	Torch	—	—	—	—	1–15	—	—	—	—	10/39	62.6%	7.179
Vanilla	Coal	—	—	—	—	1–3	—	—	—	—	7/39	48.7%	1.256
Vanilla	Iron Ore	—	—	—	—	1–2	—	—	—	—	7/39	48.7%	0.942
Vanilla	Gold Ore	—	—	—	—	1–2	—	—	—	—	3/39	24.1%	0,404
Vanilla	Lapis Lazuli Ore	—	—	—	—	1–2	—	—	—	—	5/39	37.4%	0.673
Vanilla	Diamond Ore	—	—	—	—	0–1	—	—	—	—	1/39	8.7%	0.045
Vanilla	Emerald Ore	—	—	—	—	0–1	—	—	—	—	1/39	8.7%	0.045
Vanilla	Redstone Ore	—	—	—	—	1–2	—	—	—	—	5/39	37.4%	0.673

Trivia

As of 8.2 spawning changes were made to certain Pokémon to allow them to spawn in them by default.