Publication details

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

Authors

VASSILEVA Rossitsa D. GEORGIEVA Sylvina CEMPÍREK Jan GROZDEV Valentin ŠKODA Radek STEFANOVA Elitsa

Year of publication 2023
Type Article in Periodical
Magazine / Source Review of the Bulgarian Geological Society
MU Faculty or unit

Faculty of Science

Citation
Web https://bgd.bg/REVIEW_BGS/REVIEW_BGD_2023_3/PDF/13_Vassileva_Rev_BGS_2023-3.pdf
Doi http://dx.doi.org/10.52215/rev.bgs.2023.84.3.63
Keywords pegmatite; garnet; xenotime; 'Suhata reka' quarry; SW Bulgaria
Description 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.

You are running an old browser version. We recommend updating your browser to its latest version.

More info