geology

[sosh-ly]

my website stuff

[ldaub1]

This works really well! I would make it so that you cannot spam the same thing more than once because the menu gets full really fast. (Consider making them all side by side instead of the observations below?) Also maybe add those information hover-over icons to give more information on what everything actually means. (For example label what the 2.5, 3, 5.5, 6.5 means under hardness.)
Maybe add a key or something outside the game so that if you don't have the properties memorized, you can learn them.
I'm not sure why it says to test hardness from softest to hardest (I'm guessing this is so that you don't unnecessarily scratch it?). Maybe make it so that they visually show up on the actual sample so that it disincentivizes the spamming of buttons as well? (same w/ acid)
Also maybe make it so that you can edit the notes you submit because I can imagine if you mistype / realize your wrong it may make things confusing. Similarly instead of just adding Guess: incorrect maybe add the guess that was submitted so that you know what / how you got it wrong for future reference.