Thunderstone - penalty to initiative and spell resistance?

[lifeisaparody]

2 questions from a PF noob.

The thunderstone is an alchemical weapon - would it bypass spell resistance?

Also, the description says that in addition to being deafened, the target that fails its fortitude save takes a -4 penalty to initiative. Does this mean that its turn order might change?

[Banecrow]

Thunderstones are alchemical items and are not magical, thus spell resistance does not apply to them.

I would say yes the initiative order would change.

[lifeisaparody]

I've been trying to look for a reference where it states that alchemical items are unaffected by spell resistance, but can't seem to find it.

[Darkwolf117]

It's not so much that alchemical items aren't affected by Spell Resistance, but that Spell Resistance doesn't affect them.

Bestiary, Universal Monster Rules wrote:

Spell Resistance (Ex) A creature with spell resistance can avoid the effects of spells and spell-like abilities that directly affect it.

CRB, Glossary wrote:

Only spells and spell-like abilities are subject to spell resistance.

Alchemical Items aren't spells or spell-like abilities, so they'd go through fine.