Mineraldle
Puzzle #105 was laumontite.
Laumontite is a mineral, one of the zeolite group. Its molecular formula is CaAl2Si4O12·4H2O, a hydrated calcium-aluminium silicate. Potassium or sodium may substitute for the calcium but only in very small amounts.
What the record says
Puzzle 105 ran on 28 Oct 2026 and the answer was laumontite, played with 6 guesses against 4 columns. On the record: Crystal system - monoclinic; Strunz group - silicates; Elements - Al, Ca, H, O, Si; Named after - person.
Beyond the grid the record adds Formula - CaAl₂Si₄O₁₂·4H₂O; Named after - Gillet de Laumont.
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
- Al, Ca, H, O, Si
- Named after
- person
Also on the record
- Formula
- CaAl₂Si₄O₁₂·4H₂O
- Named after
- Gillet de Laumont