Silestone, a trademark for a brand of quartz stoves, is nonporous, making it safer and easier to maintain than granite stoves; buyers who prefer especially low maintenance may find Silestone to be superior. Quartz countertops are available in a wider array of colors as well.
Quartz countertops are made with small pieces of quartz sealed together through an epoxy, which provides a strong seal. As a result, granite sometimes has a more natural look since it's installed in large slabs that formed naturally. While Silestone and other quartz countertops lack this natural history, they also provide greater flexibility for the companies that make them, giving buyers a wider array of options. While granite is not the most porous countertop material, it needs to be sealed to preserve its look and to prevent bacteria from growing on it. Silestone doesn't need to be sealed, making it easier to maintain over the years.
Despite their differences, granite and Silestone have a number of similarities. Granite is more expensive than typical countertop options, and Silestone is slightly more expensive than granite. Both are considered long-term options, so owners can often use them for decades. Both are also hard materials that protect against scratches and other types of damage.