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Minecraft 26.3

Prismatic Geodes (16-colour amethyst geodes)

A Fabric mod for Minecraft Java 26.3 that adds 15 colored amethyst geode families alongside vanilla purple geodes.

Price not confirmed
Artwork for Prismatic Geodes (16-colour amethyst geodes), for Minecraft 26.3.

Creator image source ↗

Warnings and review limits

  • Minecraft 26.3. Optional Mini Blocks and the Windows Geode Locator are separate downloads; another mod or datapack that changes minecraft:amethyst_geode may conflict.
  • Security review covered only the primary Minecraft JAR. The separate locator ZIP/EXE, bundled runtime and optional Mini Blocks JAR are not covered.
  • Low conditional finding in the separate locator: its loopback /api/verify POST has no Origin/CSRF check and may start one bounded verification job if browser local-network policy permits it. Browser reachability and impact were not reproduced.
  • Assessment covers the standalone Prismatic Geodes JAR only. The optional Windows locator executable/bundled runtime is NOT cleared. No installation, runtime test or reproducible source-to-release proof.

What changes in Minecraft 26.3?

Adds colored blocks, buds, clusters and armor trims while retaining the vanilla geode placement and rarity rules.

From the creator

KalleBoy39 (GitHub) ↗
Implementation: developed with extensive assistance from Claude Code, Anthropic's AI coding assistant.

Creator states AI assisted this mod.

Community responses

Positive comments and independent successful-use reports have not been confirmed. Read the original discussion for current replies.

No independent successful-use report was captured in the reviewed run receipts. This review did not install, launch, or play the mod; runtime compatibility is not established.

Getting started

Install Fabric Loader 0.19.5+ and Fabric API, then add the main mod JAR to the mods folder on the server and every client. Mini Blocks is optional; the separate Windows locator is not required. Installation guide: https://raw.githubusercontent.com/KalleBoy39/prismatic-geodes/43c85fbb5796f045faea5fdcba6da621f1234bec/docs/INSTALLATION.md

Official mod page ↗