GROAT, Lee A., Allison BRAND, Jan CEMPÍREK, Joel GRICE and Willow WIGHT. Emerald from the Anuri Prospect, Nunavut, Canada. Journal of Gemmology. London: Gemmological Association of Great Britain, 2019, vol. 36, No 7, p. 584-585. ISSN 1355-4565. Available from: https://dx.doi.org/10.15506/JoG.2019.36.7.584.
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Basic information
Original name Emerald from the Anuri Prospect, Nunavut, Canada
Authors GROAT, Lee A., Allison BRAND, Jan CEMPÍREK, Joel GRICE and Willow WIGHT.
Edition Journal of Gemmology, London, Gemmological Association of Great Britain, 2019, 1355-4565.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10504 Mineralogy
Country of publisher United Kingdom of Great Britain and Northern Ireland
Confidentiality degree is not subject to a state or trade secret
WWW URL
Impact factor Impact factor: 0.767
Organization unit Faculty of Science
Doi http://dx.doi.org/10.15506/JoG.2019.36.7.584
UT WoS 000488247500004
Keywords in English Emerald; gemstone; gemology; Canada
Changed by Changed by: doc. Mgr. Jan Cempírek, Ph.D., učo 15719. Changed: 10/1/2022 20:30.
Abstract
Ten polished thin sections of the seven intervals were studied with a petrographic microscope, scanning electron microscope and electron microprobe. The results show that the beryl occurs within a texturally and mineralogically variable matrix of phlogopite, muscovite, actinolite, plagioclase and pyrite, with occasional quartz, calcite and accessory minerals such as fluorapatite, titanite, rutile, chalcopyrite, molybdenite and rare tellurides. The beryl can occur as large, slightly altered grains in coarse-textured, hydrothermally altered, silicified zones, as well as at altered protolith contacts, as inclusions in other minerals (such as amphibole), and as a fine-grained, pervasive overprint that may represent a sodic alteration event.
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