Two Questions About The Occultist, And Her Implements

1) Is the list of implements for given school a definitive list? Or can similar items be used?

Example: Conjuration list a bowl as possible implement, can I instead use Goblet of Quenching?

2) Can a single item be used as an implement for two different schools?

Example: Conjuration can use a compass as an implement, and necromancy can use bones. If I have a Bone Wayfinder can it serve as an implement as both?

I really hope that the answer to 1 is "it's a list of suggestions", though at the very least it's going to be just suggestions at my table.

I'm pretty sure the answer to 2 is no though, unless your using Battlehost of course.

1) I'm pretty sure I saw a post from a Dev saying it was a suggestion, but I can't seem to find said post now. I think RAW would favor the more restrictive list, but there's certainly room for GM allowance:

Each implement school is represented by a small list of objects. Every day, the occultist selects one item from that school’s list to be his implement for the day for each implement school he knows.

2) Excepting the Battle Host and Tome Eater archetypes, which specifically allow for a single implement, I agree with Milo that the answer to that one is almost certainly no. In fact, if a normal Occultist selects the same school twice (to expand spells known), he then needs two implements just for that school:

The occultist needs only one such item to cast spells of the corresponding school, unless he selected that implement school multiple times, in which case he needs one item for each set of spells gained from that school.