Why is quartz sold as a stone product if it’s man made?

Quartz is a stone surface because quartz surfaces are manufactured using at least 90 to 95% quartz aggregate. Quartz surfaces have advantages. Because quartz countertops are man-made, there is total flexibility and control with styles, colors and patterns during manufacturing with consistent colors and patterns from production process to production process. Once the manufacturing is complete, quartz surfaces are not much different from a quarried natural stone. Controlled manufacturing also gives quartz surfacing the advantage of being extremely hard, durable and non-porous. Some quartz products feature built-in antimicrobial protection. In addition, because quartz is so hard and non-porous, sealing is not required.