Chemistry:Abellaite
| Abellaite | |
|---|---|
 White abellaite crystals from the Eureka mine, in Catalonia | |
| General | |
| Category | Carbonate mineral |
| Formula (repeating unit) | NaPb2(CO3)2(OH) |
| Crystal system | Hexagonal |
| Crystal class | 6mm - Dihexagonal-pyramidal |
| Space group | P31c (no. 159) |
| Identification | |
| Color | colorless to white |
| References | [1][2] |
Abellaite is a hydrous carbonate mineral discovered in the abandoned Eureka uranium mine in the village of Torre de Capdella (Lleida province), Catalonia, Spain. The ideal chemical formula of abellaite is NaPb2(CO3)2(OH). It is named in honor of Joan Abella i Creus, a Catalan gemmologist who has long studied minerals from the Eureka mine and first found abellaite in the mine.[4] A team composed, among others, by Jordi Ibáñez-Insa from the Institute of Earth Sciences Jaume Almera (CSIC) and by Joan Viñals and Xavier Llovet from the University of Barcelona, identified and characterized the mineral’s structure and chemical composition.[1]
Abellaite crystals are colorless to white, with a glassy or pearly appearance, and are easily crumbled.[5] The mineral has a known synthetic analogue and is chemically similar to sanrománite. Robert Hazen et al. predicted its existence in 2015.[6]
Localities
Catalonia, Spain: Eureka mine, Castell-estaó, La Torre de Cabdella, La Vall Fosca, El Pallars Jussà, Lleida, Catalonia
Russia : Yubileinaya pegmatite, Karnasurt Mt, Lovozero Massif, Murmanskaya Oblast', Northern Region
References
- ↑ 1.0 1.1 Ibáñez-Insa, Jordi (2017-12-01). "Abellaite, NaPb2 (CO3)2 (OH), a new supergene mineral from the Eureka mine, Lleida province, Catalonia, Spain" (in en). European Journal of Mineralogy 29 (5): 915–922. doi:10.1127/ejm/2017/0029-2630. Bibcode: 2017EJMin..29..915I. http://www.schweizerbart.de/papers/ejm/detail/29/88297/Abellaite_NaPb2_CO32_OH_a_new_supergene_mineral_from_the_Eureka_mine_Lleida_province_Catalonia_Spain.
- ↑ Belokoneva, E. L.; Al’-Ama, A. G.; Dimitrova, O. V.; Kurazhkovskaya, V. S.; Stefanovich, S. Yu. (March 2002). "Synthesis and crystal structure of new carbonate NaPb2(CO3)2(OH)". Crystallography Reports 47 (2): 217–222. doi:10.1134/1.1466495. Bibcode: 2002CryRp..47..217B.
- ↑ Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine 85 (3): 291–320. doi:10.1180/mgm.2021.43. Bibcode: 2021MinM...85..291W.
- ↑ Perkins, Sid (2017-05-02). "Rock hounds are on the hunt for new carbon minerals" (in en). Science News. https://www.sciencenews.org/article/rock-hounds-are-hunt-new-carbon-minerals.
- ↑ "Abellaite: Abellaite mineral information and data.". https://www.mindat.org/min-47008.html.
- ↑ Hazen, Robert M.; Hummer, Daniel R.; Hystad, Grethe; Downs, Robert T.; Golden, Joshua J. (2016-04-01). "Carbon mineral ecology: Predicting the undiscovered minerals of carbon" (in en). American Mineralogist 101 (4): 889–906. doi:10.2138/am-2016-5546. ISSN 0003-004X. Bibcode: 2016AmMin.101..889H. http://ammin.geoscienceworld.org/content/101/4/889.
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