Tinnunculiteis a naturally-occurring form of dihydrate of uric acid. It should not be confused with a proposed mineral species with the identical name 'Tinnunculite', that forms when droppings from aEuropean kestrelreact with the burning dumps of coal mines and quarries. The name tinnunculite is derived from the kestrel'sbinomial name,"Falco tinnunculus",which is itself derived from theLatinwordtinnunculus,meaning "kestrel", fromtinnulus,meaning "shrill".[3]Tinnunculite is a naturally occurring form of the same type of origin.
| Tinnunculite | |
|---|---|
| General | |
| Category | Organic mineral |
| Formula (repeating unit) | C5H4N4O3· 2H2O |
| IMA symbol | Tnn[1] |
| Crystal system | Monoclinic |
| Crystal class | 2/m - prismatic |
| Space group | ' |
| Identification | |
| Color | White |
| Tenacity | Earthy (dull) |
| References | [2] |
The mineral is a dihydrate ofuriciteto which it is visually very similar. Tinnunculite is chemically similar to other organic minerals:guanine,uricite;alsoacetamide,kladnoite.[2]A new mineral proposal with the same name but slightly different formula (C10H12N8O8) was submitted by Chesnokov & Shcherbakova and ultimately rejected by theInternational Mineralogical Association(IMA) on the basis of being of anthropogenic origin.[4]
Localities
editRussia: Mount Rasvumchorr,Khibiny Massif,Kola Peninsula,Murmanskaja Oblast,Northern Region.
References
edit- ^Warr, L.N. (2021)."IMA–CNMNC approved mineral symbols".Mineralogical Magazine.85(3): 291–320.Bibcode:2021MinM...85..291W.doi:10.1180/mgm.2021.43.S2CID235729616.
- ^ab"Tinnunculite: Mineral information, data and localities".Archivedfrom the original on 11 June 2024.Retrieved31 January2017.
- ^Jobling, James A (2010).The Helm Dictionary of Scientific Bird Names.London: Christopher Helm. pp.266,386.ISBN978-1-4081-2501-4.
- ^"Tinnunculite (of Chesnokov & Shcherbakova)".Mindat.org.Archivedfrom the original on 30 March 2017.Retrieved31 January2017.
See also
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