DuPont.com, Caesarstone.com and SilestoneUSA.com are some retailers that offer quartz slab countertops as of 2015. These retailers allow users to order quartz samples online or purchase countertops from their local showrooms.
DuPont's Zodiaq brand quartz surfaces are available in multiple colors as of 2015. This quartz is scratch- and stain-resistant, as well as nonporous. Quartz is a recommended material for kitchen and bathroom countertops because it resists the growth of mold and mildew -- even in moist conditions.
Caesarstone offers quartz slabs for kitchen, bathroom and commercial use. Buyers may request samples of desired colors and textures through the website. Caesarstone quartz slabs are produced in a variety of texture styles, including a fine, uniform grain, a style with natural-looking cracks and veins, and mosaic styles. These quartz slabs are offered in neutral colors such as gray, beige and brown, or in more vibrant reds and purples. Each color is derived from the natural tone of the quartz.
Silestone quartz countertops are available with Bacteriostatic Protection, a unique formulation of silver ions that kills any bacteria that come into contact with the countertop. This formula has been approved by the FDA. Silestone countertops are available in a variety of colors and patterns, including neutral hues and bright green and blue shades.