I'm a geologist, and this is precisely my attitude when people insist asking me about things they don't really care about, only because they just want to hear some cool name that will be forgotten after a couple of seconds.
Are you actually a geologist? If so I have a rock (I think) and I have absolutely no clue what it is lol.
Yes, I am. If truth must be told, i was even a good petrographer at the university, as my teacher was probably the best one in italy in that specific field of knowledge. Sadly, >20 years doing a job when it is mostly required a structural approach (rockslide analysis and so on) and no one cares about mineralogic composition… well, I wouldn't trust myself when it comes do tell exactly the type of rock I am dealing with. But, staying on topic: