outdoor rocks question

Hey guys

I was recently given a large quantity of beautiful outdoor rocks that i will be adding to my tanks. I scrubbed them and tested them with vinegar, and have soaked them for 24 hours. Im afraid to boil them or bake them as i have heard horror stories of exploding rocks... will they be safe after a simple 24 hour soak? They came from a landscaping agency.

In a related matter, i purchased a piece of driftwood from a friend recently. He soaked it for two weeks but it wouldnt fit in his tank in the end. It has been out of water for a solid month. How long should i soak it for?
Thanks
Much love

I should note that the scrubbing was thoroughly thorough.

They were previously used to fill a rainwater drainage ditch. I tested them with vinegar after scrubbing then, and then scrubbed again, so in a sense they were given a mild vinegar bath.

I have heard it said that they must be boiled for 45 minutes @_@

That sounds paranoid to me, but i have no idea, and the stakes are high.

Using tongs isnt really an option, these are heavy rocks.

Have you done this before Heretik? I added dechlor to the water theyre soaking in. Might have thought of that yesterday

Yeah prices on good looking rocks are a joke. Landscapers will give them to you if you ask in a nice manner. I was afraid to bleach these because i didnt want to risk some seeping into the pores. @_@

Ill put them in tonight and post an update whenever its relevant. This is going to be an awesome scape- the driftwood i have looks phenomenal.

Any advice on the driftwood? What do i do about mold that might crop up? How long is a reasonabke amount of time to soak a piece that was previously soaked for two weeks, then left out of a tank for a month?