Rankle #123 answer: Mohs hardness (softest to hardest)
Daily puzzle for Monday 5 October 2026
The answer
Rank by Mohs hardness (softest to hardest)
- 1Talc1 Mohs
- 2Gypsum2 Mohs
- 3Calcite3 Mohs
- 4Quartz7 Mohs
Why this order
Ranked softest to hardest, Talc (1 Mohs) goes at the top and Quartz (7 Mohs) at the bottom.
The closest call is Talc (1 Mohs) against Gypsum (2 Mohs), just one apart. That is the swap most likely to cost a point.
The biggest gap is between Calcite and Quartz, 4 Mohs apart, so that boundary should be the easiest part of the order to get right.
These are the figures the game reveals after you submit. They are rounded; only the order is scored.
Difficulty: medium, judged by how close the tightest pair is.
How it was scored
right slot, one place out, two or more out. The score is how many items sit in the right slot, and only 4/4 is a win. Full rules on the how to play page.