Granite is beautiful and is great for counter tops. An unfortunate problem with granite is radiation. Not all but some granite slabs contain high levels of uranium and emit gamma radiation. Find out more on Treehugger in a great little blog post there.
Don’t trust your sales person remember many of them may not know or may not want to have a discussion about something that could jeopardize a sale. Do your own research and be persistent about getting answers from your supplier and installer. Another thing to remember is that no sealer is going to stop radiation from emitting, perhaps maybe lead, and with that you have other issues??!!
