Mineraldle
Puzzle #54 was halite.
Halite, commonly known as rock salt, is a type of salt, the mineral (natural) form of sodium chloride (NaCl). Halite forms isometric crystals. The mineral is typically colorless or white, but may also be light blue, dark blue, purple, pink, red, orange, yellow or gray depending on inclusion of other materials, impurities, and structural or isotopic abnormalities in the crystals.
Read about it on Wikipedia →
What the record says
Puzzle 54 ran on 7 Sep 2026 and the answer was halite, played with 6 guesses against 4 columns. On the record: Crystal system - cubic; Strunz group - halides; Elements - Cl, Na; Named after - other.
Beyond the grid the record adds Formula - NaCl; Mohs hardness - 2; Named after - rock salt.
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
- halides
- Elements
- Cl, Na
- Named after
- other
Also on the record
- Formula
- NaCl
- Mohs hardness
- 2
- Named after
- rock salt