What is that weird feeling you get in your mouth while eating a pear?

I’m talkin Danjou specifically, but it might happen with other kinds too. It is similar to the gritty rough feel your tongue gets when you drink some (most?) types of tea. I literally have been looking for a word to describe it for months now. It’s bugging me. It’s not GRITTY, it’s like mildly gritty and, kinda feels like after you eat a lemon and your teeth feel like they’re being eaten away by acid….but it’s not the same feeling, it’s just similar. God, does anyone know what the hell I’m talking about?