boring answer: halite (salt)

spice answer: arsenolite

please don't lick, eat or otherwise consume arsenolite...

Uraninite, probably tastes like green apple candy....

Chalk is probably a copout answer but that's my pick! Limestone would be unpleasant but similar. I also feel like mica would have interesting mouthfeel.

This is why I like whiskey, it pairs well with all rocks.

Tried quartzite in my geology class the other day, thought it had a very subtle flavor, would recommend!

NaCl

1. Arsenolite, 2. Basalt, 3. Limestone

Mouthfeel: Marble

Taste: Lead ore

Street cred: Tobernite

tried

I like Riesling, so I'm gonna have to go with slate