Mineraldle

Puzzle #119 was löllingite.

Loellingite, also spelled löllingite, is an iron arsenide mineral with formula FeAs2. It is often found associated with arsenopyrite (FeAsS) from which it is hard to distinguish. Cobalt, nickel and sulfur substitute in the structure.

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From Wikipedia (CC BY-SA 4.0)

What the record says

Puzzle 119 ran on 11 Nov 2026 and the answer was löllingite, played with 6 guesses against 4 columns. On the record: Crystal system - orthorhombic; Strunz group - sulfides-sulfosalts; Elements - As, Fe; Named after - place.

Beyond the grid the record adds Formula - FeAs₂; Named after - Lölling.

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
sulfides-sulfosalts
Elements
As, Fe
Named after
place

Also on the record

Formula
FeAs₂
Named after
Lölling

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