Manufacturing Process of Quartz | Seattle Granite Marble
Quartz has always been a prized natural gemstonethe names of many familiar semiprecious stones are actually members of the quartz family, such as jasper, onyx, amethyst, or agate. But in the last decade, its popularity as a home building material has skyrocketed. Since 2004, US sales of quartz countertops have increased by 60 percent.