Pools
In Phoenix we most commonly suggest Travertine. It tends to stay the coolest but even after getting full sun for days on end it can heat up. Concrete based pruducts tend to get very hot and hold heat longer than natural stones. There are lots of colors to chose from in naturtal stone. Dark absorbs heat and light reflects it, but light colors tend to be harder on your eyes. So if you can find a nuetral shade would be the best bet.
Turkish Travertine
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