So I just got done with my nightly Mushishi episode, from which I actually picked up the spelling for ‘inkstone’. Out of curiosity, I decided to check what the kanji for it was and consequently, with what frequency it appeared (if it even appeared often enough to have its frequency measured). Turns out it’s exactly the 2500th most used kanji, at least, if Jisho and WKstats are to be believed (and up to date).
I figured it wasn’t going to be used too often, but I don’t think I expected it to show up right at that edge.