Mineraldle
Puzzle #96 was pyrite.
The mineral pyrite ( PY-ryte), or iron pyrite, also known as fool's gold, is an iron sulfide with the chemical formula FeS2 (iron (II) disulfide). Pyrite is the most abundant sulfide mineral.
Read about it on Wikipedia →
What the record says
Puzzle 96 ran on 19 Oct 2026 and the answer was pyrite, played with 6 guesses against 4 columns. On the record: Crystal system - cubic; Strunz group - sulfides-sulfosalts; Elements - Fe, S; Named after - other.
Beyond the grid the record adds Formula - FeSâ‚‚; Mohs hardness - 6; Named after - fire.
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
- cubic
- Strunz group
- sulfides-sulfosalts
- Elements
- Fe, S
- Named after
- other
Also on the record
- Formula
- FeSâ‚‚
- Mohs hardness
- 6
- Named after
- fire