Question about rocks........

[J.J.]

Ok, I went to the store and bought some of those rocks people put in the bottom of there fish tanks, they are small and come in different colors. Well, I got them for my baby boas cage. So when we got them home we rinsed them off really good, they are FINALLY dry now, and I was dipping my hands in the rocks making sure they were completely dry, well when I took my hand out of the rocks, there was all this blue stuf on my hands! * the rocks are blue* it washes off really easy, but do you think it is safe for my snake?? I really dont want a blue snake either! It would be cool, but Im sure my snake doesnt want to get it scales dyed, lol. Anyways, is there anything I can do to the rocks so they will be ok to put in my snakes cage?? or what?? Let me know!! Alrighty, bye bye!