Quartz chemistry fingerprints melt evolution and metamorphic modifications in high-purity quartz deposits

Zhou, Haoyang; Müller, Axel; Berndt, Jasper

doi:10.1016/j.gca.2023.07.015

Cited by 2 publications

(1 citation statement)

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“…The total amount of impure elements is often used as a standard to determine the quality of high-purity quartz. High purity characteristics are only evident when the total impurity content in the quartz is less than 50 ppmw (parts per million weight) [4]. Currently, the internationally recognized standard for high-purity quartz is based on IoTA-CG from Unimin Corporation (now Sibico) in the United States, with twelve element impurities (Al, K, Na, Li, Ca, Mg, Fe, Mn, Cu, Cr, Ni, B) containing less than 20 ppm.…”

Section: Introductionmentioning

confidence: 99%

A Review on Removal of Iron Impurities from Quartz Mineral

Liu,

Wang,

Wang

et al. 2023

Minerals

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Iron is one of the most stubborn impurities in quartz minerals, and the iron content partly determines the various applications of quartz. Iron can exist in quartz in the forms of iron minerals, fluid inclusions, and lattice impurities. The removal of iron and the consequent purification of quartz minerals are the key processes to obtaining high-quality quartz. Iron removal methods including conventional pre-treatment, magnetic separation, acid leaching, microbiological, roasting, and flotation, as well as combined iron removal methods in quartz ore, are herein summarized. The separation mechanism of quartz and iron impurities and the latest research progress were explained and summarized, and the development prospects of quartz purification in the future were proposed based on the current progress and limitations of quartz iron removal.

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Section: Introductionmentioning

confidence: 99%