An anonymous reader quotes a report from Axios: Spruce Pine is one of the only places in the world to mine high-purity quartz. The mineral is an essential ingredient of chips in countless products, including medical devices, solar panels, cellphones
Spruce Pine is one of the only places in the world to mine high-purity quartz. The mineral is an essential ingredient of chips in countless products, including medical devices, solar panels, cellphon… [+1327 chars]
