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Tinnunculite

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Common Kestrel - falco tinnunculus
Formula:
C5H4N4O3·2H2O
Crystal System:
Monoclinic
Name:
Named after the Common Kestrel (Falco tinnunculus).
Not to be confused with Tinnunculite (of Chesnokov & Shcherbakova).

A naturally occurring dihydrate of uricite (uric acid) to which it is visually very similar.
Well-known rare component of urinary and other stones.

Chemically (C-H-N-O) similar to other organic minerals: guanine, uricite; also acetamide, kladnoite.


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Classification of TinnunculiteHide

Approved, Pending publication
Approval Year:
2015

Chemical Properties of TinnunculiteHide

Formula:
C5H4N4O3·2H2O
IMA Formula:
C5H4N4O3 · 2H2O

Crystallography of TinnunculiteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
Setting:
P21/c
Cell Parameters:
a = 7.261(9) Å, b = 6.365(7) Å, c = 17.48(3) Å
β = 91.0(1)°
Ratio:
a:b:c = 1.141 : 1 : 2.746
Unit Cell V:
807.74 ų (Calculated from Unit Cell)

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
8.82(84)
5.97(15)
5.63(24)
4.22(22)
3.24(27)
3.18(100)
3.116(44)
2.576(14)
Comments:
From Type Description.

Type Occurrence of TinnunculiteHide

Place of Conservation of Type Material:
Type material is deposited in the collections of the Fersman Mineralogical Museum of the Russian Academy of Sciences, Moscow, Russia, registration number 4695/1

Synonyms of TinnunculiteHide

Other Language Names for TinnunculiteHide

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for TinnunculiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Ringertz, H. (1965): Optical and crystallographic data of uric acid and its dihydrate. Acta Crystallogr. 19, 286-287.
Lonsdale, K. & Mason, P. (1966): Uric acid, uric acid dihydrate, and urates in urinary calculi, ancient and modern. Science 152, 1511-1512.
Shirley, R. (1966): Uric acid dihydrate: Crystallography and identification. Science 152, 1512-1513.
Lonsdale, K. & Sutor, D. J. (1971): Uric acid dihydrate in bird urine. Science 172, 958-959.
Hesse, A.; Schneider, H. J.; Berg, W.; Hienzsch, E. (1975): Uric acid dihydrate as urinary calculus component. Investigative Urology 12, 405-409.
Yong Go, K.; Boerner, R. H.; Berg, W.; Schneider, H. J. (1980): Stabilization factors for uric acid dihydrate - a contribution to urine stone formation. Jenaer Harnsteinsymposium 6, 71-74 (in German).
Dosch, W. (1981): New urates (II): uric acid and uric acid dihydrate. Fortschritte der Urologie und Nephrologie 17, 254-264 (in German).
Boistelle, R. & Rinaudo, C. (1981): Phase transition and epitaxies between hydrated orthorhombic and anhydrous monoclinic uric acid crystals. Journal of Crystal Growth 53, 1-9.
Babic-Ivancic, V., Furedi-Milhofer, H., Brown, W. E. & Gregory, T. M. (1987): Precipitation diagrams and solubility of uric acid dihydrate. Journal of Crystal Growth 83, 581-587.
Artioli, G., Galli, E. & Ferrari, M. (1993): Uric acid dihydrate - a new mineral? Rivista Mineralogica Italiana (4), 261-264 (in Italian).
Artioli, G., Masciocchi, N. and Galli, E. (1997): The elusive crystal structure of uric acid dihydrate: implication for epitaxial growth during biomineralization. Acta Crystallogr. B53, 498-503.
Parkin, S. & Hope, H. (1998): Uric acid dihydrate revisited. Acta Crystallogr. B54, 339-344.
Zellelow, A. Z., Kim, K.-H., Sours, R. E. & Swift, J. A. (2010): Solid-state dehydration of uric acid dihydrate. Cryst. Growth Des., 10, 418-425.
Pekov, I.V., Chukanov, N.V., Belakovskiy, D.I., Lykova, I.S., Yapaskurt, V.O., Zubkova, N.V., Shcherbakova, E.P. Britvin, S.N. (2016) Tinnunculite, IMA 2015- 021a. CNMNC Newsletter No. 29, February 2016, page 202. Mineralogical Magazine: 80: 199–205.

Internet Links for TinnunculiteHide

Localities for TinnunculiteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Austria
 
  • Salzburg
    • Hohe Tauern
      • Gastein valley
        • Naßfeld valley
          • Sportgastein
Kolitsch, U. & Raade, G. (2011): Uric acid dihydrate: occurrences in Austria and Norway. Norsk Bergverksmuseum Skrift. 46, 25-29. [as Unnamed (Uric Acid Dihydrate)]
      • Rauris valley
        • Hüttwinkl valley
          • Alteck - Hoher Sonnblick area
            • Kolm-Saigurn
Kolitsch, U. & Habel, M. (2012): 1752) Harnsäuredihydrat von der Hüttwinkelache bei Kolm Saigurn, Rauris, Salzburg. Pp. 157 in Niedermayr, G. et al. (2012): Neue Mineralfunde aus Österreich LXI. Carinthia II, 202./122., 123-180. [as Unnamed (Uric Acid Dihydrate)]
Italy
 
  • Emilia-Romagna
    • Modena Province
Artioli, G., Galli, E. & Ferrari, M. (1993): Uric acid dihydrate - a new mineral? Rivista Mineralogica Italiana (4), 261-264 (in Italian). [as Unnamed (Uric Acid Dihydrate)]
  • Piedmont
    • Torino Province
      • Pellice Valley
        • Luserna Valley
Cámara F., Bittarello E., Ciriotti M.E., Nestola F., Radica F., Massimi F., Balestra C., Bracco R. (2017): As-bearing new mineral species from La Valletta mine, Maira Valley, Piedmont, Italy: III. Canosioite, Ba2Fe3+(AsO4)2(OH), description and crystal structure. Mineralogical Magazine, (1 (in press)
    • Verbano-Cusio-Ossola Province
      • Ossola Valley
        • Divedro Valley
          • Varzo
Cuchet, S., Crumbach, M. & van der Burgt, A. (2016) Le allaniti e i minerali di terre rare dell'Alpe Veglia (Varzo, Verbano-Cusio-Ossola). Rivista Mineralogica Italiana, 40, 212-241.
Norway
 
  • Buskerud
    • Modum
      • Åmot
Kolitsch, U. & Raade, G. (2011): Uric acid dihydrate: occurrences in Austria and Norway. Norsk Bergverksmuseum Skrift. 46, 25-29. [as Unnamed (Uric Acid Dihydrate)]
Russia (TL)
 
  • Northern Region
    • Murmanskaya Oblast'
      • Khibiny Massif
Pekov, I.V., Chukanov, N.V., Belakovskiy, D.I., Lykova, I.S., Yapaskurt, V.O., Zubkova, N.V., Shcherbakova, E.P. and Britvin, S.N. (2016) Tinnunculite, IMA 2015- 021a. CNMNC Newsletter No. 29, February 2016, page 202; Mineralogical Magazine, 80, 199–205.
Mineral and/or Locality  
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