Hi guys i am currently changing a few things up in my dragons enclosure, He has had a wooden cave type basking spot which has worked a treat but i have bought natural sandstone to make his enclosure look and feel a bit better for him, I have soaked the stone in boiling water for 30 mins and scrubbed to get any nasties off. Is that ok to do so? I didnt want to use any bleach or put it in oven incase i had any problems?