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North Carolina maker of high-purity quartz back operating post-Helene October 10, 2024 at 4:17 PM An aerial view of quartz mines in Spruce Pine, N.C., as taken from a plane on Monday, Sept. 30, 2024.
Spruce Pine Mining District. The Spruce Pine Mining District is a swath of the valley of the North Toe River in the Blue Ridge Mountains of northwestern North Carolina. The area is mined for its mica, kaolin, quartz and feldspar. [1] Spruce Pine district is one of the largest suppliers of high-purity quartz, which is used in the manufacture of ...
Two companies, Sibelco and The Quartz Corp., extract the high-purity quartz in Spruce Pine, refine it and export it to manufacturing facilities based primarily in China and other parts of Asia.
Over the past three decades, new technological demands have made high-purity quartz one of North Carolina’s most important exports. Between 2019 and 2023, Sibelco said its Spruce Pine sites ...
An estimated 70% to 90% of the crucibles used worldwide in which polysilicon used for the chips is melted down are made from Spruce Pine quartz, according to Vince Beiser, the author of “The World in a Grain." The high-tech quartz is also used in manufacturing solar panels and fiber-optic cables.
Ultrapure water (UPW), high-purity water or highly purified water (HPW) is water that has been purified to uncommonly stringent specifications. Ultrapure water is a term commonly used in manufacturing to emphasize the fact that the water is treated to the highest levels of purity for all contaminant types, including: organic and inorganic compounds; dissolved and particulate matter; volatile ...
Quartz fiber is a fiber created from high-purity quartz crystals. [1][2] It is made by first softening quartz rods (in an oxyhydrogen flame) [3] and then creating filaments from the rods. [4] Since the creation of high-purity quartz crystals is an energy intensive process, quartz fiber is more expensive than alternatives (glass fiber and high ...
The town of Spruce Pine, North Carolina, is home to two mines that are major sources of high-purity quartz, a key material for making semiconductors. Hurricane Helene's devastation has shut down a ...