Basalt Deltas

minecraft:basalt_deltas

Basalt Deltas data for Minecraft 26.4-snapshot-5, read straight from the game files.

Mobs that spawn here

Category	Mob	Weight	Group size
creature	Strider	60	random 1–2
monster	Ghast	40	1
monster	Magma Cube	100	random 2–5

Climate

Temperature	2
Downfall	0
Precipitation	False
Water colour	#3f76e4

Data

From data/minecraft/worldgen/biome/basalt_deltas.json.

attributes

audio/ambient_sounds	`{"additions": {"sound": "minecraft:ambient.basalt_deltas.additions", "tick_chance": 0.0111}, "loop": "minecraft:ambient.basalt_deltas.loop", "mood": {"block_search_extent": 8, "offset": 2.0, "sound": "minecraft:ambient.basalt_deltas.mood", "tick_delay": 6000}}`
audio/background_music	`{"default": {"max_delay": 24000, "min_delay": 12000, "sound": "minecraft:music.nether.basalt_deltas"}}`
gameplay/natural_mob_spawns	`{"argument": {"spawn_costs": {}, "spawns_by_category": {"creature": [{"type": "minecraft:strider", "count": {"type": "minecraft:uniform", "max_inclusive": 2, "min_inclusive": 1}, "weight": 60}], "monster": [{"type": "minecraft:ghast", "count": 1, "weight": 40…`
visual/ambient_particles	`{"argument": [{"particle": {"type": "minecraft:white_ash"}, "probability": 0.118093334}], "modifier": "append"}`
visual/fog_color	#685f70

carvers minecraft:nether_cave

downfall 0.0

effects {"water_color": "#3f76e4"}

features [[], [], [], [], ["minecraft:delta", "minecraft:small_basalt_columns", "minecraft:large_basalt_columns"], [], [], ["minecraft:basalt_blobs", "minecraft:blackstone_blobs", "minecraft:spring_delta", "minecraft:patch_fire", "minecraft:patch_soul_fire", "minecraf…

has_precipitation false

temperature 2.0

Extracted from Minecraft 26.4-snapshot-5 on 22 October 2026. 9Minecraft is not affiliated with Mojang or Microsoft.