Mineraldle
Puzzle #86 was aeschynite-(Y).
Aeschynite-(Y) is a rare earth mineral of yttrium, calcium, iron, thorium, titanium, niobium, oxygen, and hydrogen with the chemical formula (Y,Ca,Fe,Th)(Ti,Nb)2(O,OH)6. Its name comes from the Greek word for "shame". Its Mohs scale rating is 5 to 6.
Read about it on Wikipedia →
What the record says
Puzzle 86 ran on 9 Oct 2026 and the answer was aeschynite-(Y), played with 6 guesses against 4 columns. On the record: Crystal system - orthorhombic; Strunz group - oxides-hydroxides; Elements - Nb, O, Ti, Y; Named after - other.
Beyond the grid the record adds Formula - Y(TiNb)O₆; Named after - aeschynite, yttrium.
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
- oxides-hydroxides
- Elements
- Nb, O, Ti, Y
- Named after
- other
Also on the record
- Formula
- Y(TiNb)O₆
- Named after
- aeschynite, yttrium