Levinsonite-(Y)
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| Levinsonite-(Y) | |
|---|---|
| General | |
| Category | Mineral |
| Formula (repeating unit) | (empirical) Y0.3Nd0.2La0.1Sm0.1Gd0.1Al(SO4)2(C2O4)·12(H2O) |
| Strunz classification | 10.AB.70 |
| Dana classification | 50.01.09.03 |
| Crystal system | monoclinic |
| Identification | |
| Colour | colourless |
| Crystal habit | prismatic |
| Fracture | brittle, irregular |
| Luster | vitreous |
| Streak | white |
| Density | 2.09 |
Levinsonite-(Y) is a rare mineral from the mineral class of "organic compounds". The mineral was named in honor of Alfred A. Levinson (1927-2005), professor of mineralogy at the University of Calgary, in part because of his origination of the internationally used nomenclature for rare-earth minerals, the Levinson modifier[1], which is a standard in mineralogical nomenclature and allows for the more precise identification and classification of rare-earth minerals.[2]
The type material for Levinsonite-(Y) is kept at the University of Michigan, and the Smithsonian National Museum of Natural History in Washington, D.C.[3]
Discovery
In 1981, T. Dennis Coskren and Robert J. Lauf began investigating a large number of unusual minerals at the Alum Cave Bluff (ACB), Great Smoky Mountains National Park, Tennessee, USA.[2][4] Coskren and Lauf discovered three new rare-earth element minerals, which have subsequently been named coskrenite-(Ce), levinsonite-(Y), and zugshunstite-(Ce). After submission to the International Mineralogical Association (IMA), the naming of Levinsonite-(Y) was approved by the Commission on New Minerals and Mineral Names and given the IMA number 1996-057.[5]
References
- ^ Burke, Ernst A.J. (2008). ""Tidying up mineral names: an IMA-CNMNC scheme for suffixes, hyphens and diacritical marks"". Mineralogical Record. 39 (2): 131–135.
- ^ a b Rouse, R. C.; Peacor, D. R.; Essene, E. J.; Coskren, T. D.; Lauf, R. J. (2001-04-01). "The new minerals levinsonite-(Y) [(Y, Nd,Ce)Al(SO4)2(C2O4) · 12H2O] and zugshunstite-(Ce) [(Ce,Nd,La)Al(SO4)2(C2O4) · 12H2O]: Coexisting oxalates with different structures and differentiation of LREE and HREE1>". Geochimica et Cosmochimica Acta. 65 (7): 1101–1115. doi:10.1016/S0016-7037(00)00568-8. ISSN 0016-7037.
- ^ https://www.handbookofmineralogy.org/pdfs/levinsonite-Y.pdf
- ^ "Levinsonite-(Y) Mineral Data". webmineral.com. Retrieved 2024-09-18.
- ^ https://www.mindat.org/min-7024.html