countertops and sinks

Does anyone worry about the radon/radioactive issues w/ granite? I’m replacing Ubatuba with a Netuno Bordeaux which is much lighter with gray and brown and cream colors and a lot of movement in the pattern…darker colors supposedly don’t carry/hold as much radiation -trying to decide if I need to buy a geiger counter to take to the stone yard.

I also am looking at the silgranite sink - dark gray and replacing my black appliances with black stainless steel. I have no idea what to do with the backsplash…too expensive to use the same granite so thinking about removing existing tile and just painting a complimentary color in the granite.

You can find the sinks on Amazon…read the reviews…there are some that really don’t like them as much as many really do like them.