Norwegian kyanite quartzites - potential resources of high purity quartz?
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https://hdl.handle.net/11250/2664962Utgivelsesdato
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Forkortet:\rThis study represents an evaluation of Norwegian kyanite quartzite occurrences as potential deposits of high purity quartz raw material. Kyanite quartzites are rare fine-grained with 70 to 85 vol. % quartz and > 15 vol. % kyanite (Al2SiO5) which occur in Proterozoic supracrustal rock units. Kyanite quartzites form stratiform lens-shaped bodies, which can extend several kilometers.