Mineraldle
Puzzle #17 was gedrite.
Gedrite is a crystal belonging to the orthorhombic ferromagnesian subgroup of the amphibole supergroup of the double chain inosilicate minerals with the ideal chemical formula Mg2(Mg3Al2)(Si6Al2)O22(OH)2.
What the record says
Puzzle 17 ran on 1 Aug 2026 and the answer was gedrite, played with 6 guesses against 4 columns. On the record: Crystal system - orthorhombic; Strunz group - silicates; Elements - Al, H, Mg, O, Si; Named after - other.
Beyond the grid the record adds Formula - ☐Mg₂Mg₃Al₂(Si₆Al₂)O₂₂(OH)₂; Named after - Gèdre.
Mineraldle builds its record from Wikidata - CC0 1.0. The description above comes from the same place the game credits on every reveal: English Wikipedia verbatim extract, CC BY-SA 4.0. The puzzle itself is still playable in the archive, and every answer that has been and gone is listed on the past-answers page.
How it scored
- Crystal system
- orthorhombic
- Strunz group
- silicates
- Elements
- Al, H, Mg, O, Si
- Named after
- other
Also on the record
- Formula
- ☐Mg₂Mg₃Al₂(Si₆Al₂)O₂₂(OH)₂
- Named after
- Gèdre