Amethyst Geode

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This page describes content that may be included in a future update for Java Edition.
This content has appeared in 1.17 development versions, but the full update containing it has not been released yet.
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Amethyst geodes are underground structures found in Overworld biomes which contain smooth basalt and serve as the only source of calcite and amethyst items and blocks.


Amethyst geodes generate commonly between Y=70 and the bedrock layer regardless of whether "generate structures" is toggled on or off and can replace bedrock. They only override caverns, mineshafts and sometimes are exposed on the surface, such as on beaches and underwater in oceans.


The inside of a cracked amethyst geode (With tuff instead of smooth basalt).

Amethyst geodes consist of three layers: an outer layer of smooth basalt, a middle layer of calcite and a hollow layer of amethyst blocks with budding amethyst blocks sometimes generating throughout. Amethyst crystals generate within the structure on budding amethyst. Geodes have a 95% chance of generating with a crack, exposing its inside. Caves, aquifers and canyons cannot cut into geodes,[1] and as such are often obstructed by them, except in cases where the crack intersects a cavern.

Data values[edit]


NameNamespaced ID
[No displayed name]geode


October 3, 2020Amethyst geodes are shown at Minecraft Live 2020.
Upcoming Java Edition
1.1720w45aAmethyst Geode JE1.png Added amethyst geodes.
21w08aAmethyst Geode JE2.png Amethyst geodes are now covered with smooth basalt instead of tuff.
Amethyst geodes can no longer generate fully in midair.[2]


Issues relating to "Amethyst Geode" are maintained on the bug tracker. Report issues there.


  1. MC-205854 – "Geodes do not connect to caves properly" – resolved as "Works As Intended"
  2. MC-214782