Well dear sir, you piqued my curiosity and memories, because I know I used to know this at one time in my life, but seemed to have forgotten it. So I went a noble quest full of danger and glory to find out. Here is what I found.
"For some time, the highest scoring English Scrabble word was QUARTZY, at 82 points. That record was broken by a player who, after a couple of rounds of discarding unnecessary tiles, managed to play QUIXOTRY, using all seven letters and extending over two triple word squares. (The R was already on the board for him to connect to.) His score, which is the current all-time record for a single play, was 365 points."
Here's a picture of the best game of Scrabble I've ever played since we're on the topic. We kind of went off the board, but it makes sense for the most part ^_^
The highest scoring scrabble word for starters are squeezy and quartzy, which you can earn 126 points. The word BENZOXYCAMPHORS, which is a chemical name is the highest scoring words in scrabble which is worth 1,970 points. You can check the Scrabble solver to know what are the high scoring words in scrabble.
quartzy is the highest gained in a tornament. you could put the tiles elsewhere on teh board and only get 30 points. its nowhere near the biggest scoring scrabble word.
D= You could totally do that if there was room and someone had already put oxidizing down. What does that mean?
Apparently it's Quartzy if you put it in the right place.
You guys are all word nerds. and i love you all. :D