1) I'm 1 nanoxite stone and 3 perolitium shards short (if I can count the key, then I only need 2)
I've been all over, through, down the mines (sandstone & limestone).
2) The only place I can't get to is behind the barrier once you go past Cortez - is that relevant?
3) I can't get the silver key, she keeps catching me, is this just one of those sequence aspects of the game, as in keep trying one option or another?
Yes/No
3A) If no, then some guidance would help

4) Do I need to get the shards/ stones/ key before I try and blow up the docking bay?
Yes/No

5) Do I need to get in the brats room at all? He gives me the passcard to 1 room but threatens to tell on me if I try to go for his room and there's no option to tranquiize him! :o(

6) Out of curiosity, where's Dr Gingram (what a mixed up name he has ;oP )

Help please
Thanks
Kediri :o)