Mineraldle
Puzzle #97 was thorite.
Thorite, (Th,U)SiO4, is a rare nesosilicate of thorium that crystallizes in the tetragonal system and is isomorphous with zircon and hafnon. It is the most common mineral of thorium and is nearly always strongly radioactive. Thorite was discovered in 1828 on the island of Løvøya, Norway, by the vicar and mineralogist, Hans Morten Thrane Esmark.
Read about it on Wikipedia →
What the record says
Puzzle 97 ran on 20 Oct 2026 and the answer was thorite, played with 6 guesses against 4 columns. On the record: Crystal system - tetragonal; Strunz group - silicates; Elements - O, Si, Th; Named after - other.
Beyond the grid the record adds Formula - ThSiOâ‚„; Named after - thorium.
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
- tetragonal
- Strunz group
- silicates
- Elements
- O, Si, Th
- Named after
- other
Also on the record
- Formula
- ThSiOâ‚„
- Named after
- thorium