Mineraldle
Puzzle #18 was wöhlerite.
Wöhlerite, also known as woehlerite or wohlerite, is a member of the Wöhlerite group. It was named after German chemist Friedrich Wöhler. It was first described by Scheerer in 1843, but the crystal structure was only solved by Mellino & Merlino in 1979.
What the record says
Puzzle 18 ran on 2 Aug 2026 and the answer was wöhlerite, played with 6 guesses against 4 columns. On the record: Crystal system - monoclinic; Strunz group - silicates; Named after - person. 1 of the 4 columns is blank in the source (Elements), so nobody could score it either way.
Beyond the grid the record adds Named after - Friedrich Wöhler.
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
- monoclinic
- Strunz group
- silicates
- Elements
- Not recorded
- Named after
- person
Also on the record
- Named after
- Friedrich Wöhler