Granite's strength and beauty has drawn in designers and consumers alike for decades. The color selection is virtually unlimited, making every piece unique and timeless. Granite is slightly porous, so it does require a sealer.
Quartz has become a popular stone for its wide variety of color options, durability, and easy maintenance. Composed of more than 90% quartz mineral -the rest is made of resins that bind the stone together - Quartz is very consistent throughout, and generally has no dramatic variations in color or pattern. Quartz is nonporous so it does not require a sealer.
Marbles timeless elegance and classic appeal have made it a high demand product for many years, with designers and consumers coming back to its classy look again and again. Marble is a porous stone, contributing to its soft look. This does, however, make it prone to scratching and staining, so it does require a sealer, and is not recommended for use in kitchens.
Soapstone is composed primarily of magnesite, dolomite, chlorite, and talc. When it comes to soapstone countertops, no two slabs are ever the same. Soapstone is non-porous, so it does not require a sealer, but it is softer than granite, and naturally darkens over time. The maintenance champ of stones, to hide scratches, and to enhance the color of the stone a mineral oil can be applied and rubbed into the surface.
Quartzite - isn't that the same as Quartz?
The short answer is no. Quartzite is an all natural stone that has undergone extreme heat and pressure underground to bring you the widely varied, beautiful and durable quartzite. Since this is a natural stone, the color is determined by a myriad of trace minerals and the sandstone it was originally formed from. This is a natural, porous stone so it does require a sealer.