Mineraldle
Puzzle #46 was zýkaite.
Zykaite or zýkaite is a grey-white mineral consisting of arsenic, hydrogen, iron, sulfur and oxygen with formula: Fe3+4(AsO4)3(SO4)(OH)·15(H2O). This dull mineral is very soft with a Mohs hardness of only 2 and a specific gravity of 2.5. It is translucent and crystallizes in the orthorhombic crystal system.
What the record says
Puzzle 46 ran on 30 Aug 2026 and the answer was zýkaite, played with 6 guesses against 4 columns. On the record: Crystal system - orthorhombic; Strunz group - phosphates-related; 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 - Václav Zýka.
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
- orthorhombic
- Strunz group
- phosphates-related
- Elements
- Not recorded
- Named after
- person
Also on the record
- Named after
- Václav Zýka