Created
Sun, 13/10/2024 - 01:30
Rumors and their origins Northeast of here, near the the little town of Spruce Pine, NC, there is a mine that provides key minerals used in the manufacture of microelectronics (NPR): Semiconductors are the brains of every computer-chip-enabled device, and solar panels are a key part of the global push to combat climate change. To make both semiconductors and solar panels, companies need crucibles and other equipment that both can withstand extraordinarily high heat and be kept absolutely clean. One material fits the bill: quartz. Pure quartz. Quartz that comes, overwhelmingly, from Spruce Pine. “As far as we know, there’s only a few places in the world that have ultra-high-quality quartz,” according to Ed Conway, author of Material World: The Six Raw Materials That Shape Modern Civilization. Russia and Brazil also supply high-quality quartz, he says, but “Spruce Pine has far and away the [largest amount] and highest quality.” Conway says without super-pure quartz for the crucibles, which can often be used only a single time, it would be impossible to produce most semiconductors.