FUNDus!
Cayalsit-(Y)
Cayalsite-(Y)-1M cotype sample (yttrian fluorite, left) from Stetind, Tysfjord, Norway (sample: 23x16 mm) and detail of cayalsite-(Y)-1M with hematite in fluorite vug (center, width: 1.2 mm; Photo K.-C. Lyncker, Hamburg) and cayalsite-(Y)-1O cotype sample (yttrian fluorite, right) from Øvre Lapplægeret, Tysfjord, Norway (sample: 16x13 mm).
Mineral: Cayalsite-(Y) Hölzel-No.: 9.AH.640 Type of specimen: CT IMA-No. / Accepted: 2011-094 Chemical formula: CaY6Al2Si4O 18 F 6 Type locality: Norway, Nordland, Tysfjord, Stetind quarry Associated minerals: Fluorite, bastnäsite-(Ce), hematite, vyuntspakhkite-(Y), hundholmenite-(Y) Collection: Mineralogisches Museum - Universität Hamburg Catalogue−No. / Site: MMHH NO-002/08 Nature of type specimen: Mineral specimen References:
Cayalsite-(Y), a new rare-earth calcium aluminium fluorosilicate with OD character.
Malcherek, T., Schlüter, J., Cooper, M., Ball, N. and Husdal, T. (2015)
European Journal of Mineralogy , 27 , 683-694 Notes / Further information:
Discovered by Tomas Andersen Husdal, Bodø, Norway. Type Specimen Catalogue Entry: http://www.typmineral.uni-hamburg.de/tables/en/cayalsite-y.html
Cayalsite-(Y), a new rare-earth calcium aluminium fluorosilicate with OD character.
Malcherek, T., Schlüter, J., Cooper, M., Ball, N. and Husdal, T. (2015)
European Journal of Mineralogy , 27 , 683-694 Notes / Further information:
Discovered by Tomas Andersen Husdal, Bodø, Norway. Type Specimen Catalogue Entry: http://www.typmineral.uni-hamburg.de/tables/en/cayalsite-y.html
Collection: Minerals
The Mineralogical Museum's mineral collection contains minerals, gemstones and precious stones as well as syntheses and imitations of minerals. The collection provides the basis for mineralogical research and teaching at the University of Hamburg. It has grown since 1988 from about 1,600 to date (2022) about 3,155 of the currently approximately 5,800 recognized mineral species, making it one of the largest mineralogical reference collections in Germany. In the context of geodiversity research, numerous new minerals have been scientifically described in the Mineralogical Museum and are deposited in the museum as so-called type minerals.
Contact:
Leibniz Institute for the Analysis of Biodiversity Change - Hamburg site
Grindelallee 48
20146 Hamburg
Phone: +49 40 238317-808
E-mail: s.peters@leibniz-lib.de
