Garnet (REE plus Y)-bearing mineral association in pegmatite from the Chepino lithotectonic Unit, Western Rhodopes

VASSILEVA, Rossitsa D., Sylvina GEORGIEVA, Jan CEMPÍREK, Valentin GROZDEV, Radek ŠKODA and Elitsa STEFANOVA. Garnet (REE plus Y)-bearing mineral association in pegmatite from the Chepino lithotectonic Unit, Western Rhodopes. Review of the Bulgarian Geological Society. Bulgarian Geological Society, 2023, vol. 84, No 3, p. 63-66. ISSN 0007-3938. Available from: https://dx.doi.org/10.52215/rev.bgs.2023.84.3.63.

Basic information

• Original name: Garnet (REE plus Y)-bearing mineral association in pegmatite from the Chepino lithotectonic Unit, Western Rhodopes
• Authors: VASSILEVA, Rossitsa D., Sylvina GEORGIEVA, Jan CEMPÍREK (203 Czech Republic, belonging to the institution), Valentin GROZDEV, Radek ŠKODA (203 Czech Republic, belonging to the institution) and Elitsa STEFANOVA.
• Edition: Review of the Bulgarian Geological Society, Bulgarian Geological Society, 2023, 0007-3938.

Other information

• Original language: English
• Type of outcome: Article in a journal
• Field of Study: 10504 Mineralogy
• Country of publisher: Bulgaria
• Confidentiality degree: is not subject to a state or trade secret
• WWW: URL
• Impact factor: Impact factor: 0.200 in 2022
• RIV identification code: RIV/00216224:14310/23:00133708
• Organization unit: Faculty of Science
• Doi: http://dx.doi.org/10.52215/rev.bgs.2023.84.3.63
• UT WoS: 001150213300006
• Keywords in English: pegmatite; garnet; xenotime; 'Suhata reka' quarry; SW Bulgaria
• Tags: rivok
• Tags: International impact, Reviewed

Abstract

Large pegmatite body/bodies are outcropping in the "Suhata Reka" quarry, near the town of Rakitovo. Their bulk mineral composition with dominant K-feldspar (40%), plagioclase (30%), quartz (25%) and mica (<= 5%) is complemented by (REE+Y)-bearing association of primary and secondary accessories. Zircon, monazite, xenotime, scarce apatite and noticeable amount of garnet are among the pegmatite primary minerals. The cm-sized almandine-spessartine crystals contain numerous fractures which host secondary (REE+Y)-bearing phosphate (xenotime, cher-alite) and silicate minerals (e.g. REE-epidote). Formation of the late-stage REE-mineralization in garnet is due to its hydrothermal alteration and redistribution of REE+Y in the secondary phases.