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Tinnunculite

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About TinnunculiteHide

09724730014949318061683.jpg
Common Kestrel - falco tinnunculus
Formula:
C5H4N4O3 · 2H2O
structural formula: NHC(O)NHC2C(O)NHC(O)NH·2H2O
Colour:
colorless, white, yellowish, reddish or раlе lilас
Lustre:
Vitreous
Specific Gravity:
1.68 (Calculated)
Crystal System:
Monoclinic
Name:
Named after the Common Kestrel (Falco tinnunculus). An original description was of material formed as a product of hot gases from a burning coal dump reacting with excrement from Falco tinnunculus. It was rejected by the IMA for being of anthropogenic origin (the burning coal dump), however natural material was later found and the name was kept.
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 though rare component of urinary and other stones (a biomineral).

Chemically (C-H-N-O) but not structurally similar to other organic minerals: guanine, uricite; also acetamide, kladnoite.


Classification of TinnunculiteHide

Approved
Approval Year:
2015
First Published:
2016

Physical Properties of TinnunculiteHide

Vitreous
Transparency:
Transparent, Translucent
Colour:
colorless, white, yellowish, reddish or раlе lilас
Tenacity:
Brittle
Cleavage:
Distinct/Good
distinct (010)
Density:
1.68 g/cm3 (Calculated)

Optical Data of TinnunculiteHide

Type:
Biaxial (-)
RI values:
nα = 1.503(3) nβ = 1.712(3) nγ = 1.740(1)
2V:
Measured: 40° (10)
Max Birefringence:
δ = 0.237
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
High

Chemical Properties of TinnunculiteHide

Formula:
C5H4N4O3 · 2H2O

structural formula: NHC(O)NHC2C(O)NHC(O)NH·2H2O
Emperical Formula (of original material):
C4.99H8N4.07O4.94

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:
820 ų
Z:
4

X-Ray Powder DiffractionHide

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

Geological EnvironmentHide

Paragenetic Mode(s):

Type Occurrence of TinnunculiteHide

General Appearance of Type Material:
Prismatic or tabular crystals, uр to 0.2 mm in length,
clusters, and crystalline ог micro-globular crusts
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
Reference:
Pekov, I.V., Chukanov, N.V., Yapaskurt, V.O., Belakovskiy, D.I., Lykova, I.S., Zubkova, N.V., Shcherbakova, E.P., Britvin, S.N., Chervonnyi, A.D. (2016) Tinnunculite, C5H4N4O3·2H2O: finds at Kola Peninsula, redefinition and validation as a mineral species. Zapiski Rossiiskogo Mineralogicheskogo Obshchetstva: 145(4): 20-35.

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 Crystallographica: 19: 286-287.
Lonsdale, K. and 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. and 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. and 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.
Chesnokov, B.V., Shcherbakova T.P. (1991) The mineralogy of burnt dumps of the Chelyabinsk coal basin. Moscow, p. 152 (in Russian).
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 Crystallographica: B53: 498-503.
Chesnokov, B., Kotrly, M. and Nisanbajev, T. (1998) Brennende Abraumhalden und Aufschlüsse im Tscheljabinsker Kohlenbecken - eine reiche Mineralienküche. Mineralien-Welt: 9(3): 54-63 (in German).
Parkin, S. and Hope, H. (1998) Uric acid dihydrate revisited. Acta Crystallographica: B54: 339-344.
Zellelow, A. Z., Kim, K.-H., Sours, R. E. & Swift, J. A. (2010) Solid-state dehydration of uric acid dihydrate. Crystal Growth and Design: 10: 418-425.
Pekov, I.V., Chukanov, N.V., Yapaskurt, V.O., Belakovskiy, D.I., Lykova, I.S., Zubkova, N.V., Shcherbakova, E.P., Britvin, S.N., Chervonnyi, A.D. (2016) Tinnunculite, C5H4N4O3·2H2O: finds at Kola Peninsula, redefinition and validation as a mineral species. Zapiski Rossiiskogo Mineralogicheskogo Obshchetstva: 145(4): 20-35.
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.
Belakovskiy, D.I., Cámara, F., Gagne, O.C., Uvarova, Y. (2017) New mineral names. American Mineralogist: 102: 1961-1968.

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
    • St. Johann im Pongau District
      • Bad Gastein
        • 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)]
    • Zell am See District
      • Rauris
        • 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)]
  • Styria
    • Südoststeiermark District
      • Bad Gleichenberg
        • Wilhelmsdorf
Postl, W., Bernhard, F., Bojar, H.-P., Walter, F. (2019): 2151) Chayesit bzw. Tinnunculit (Harnsäuredihydrat) aus dem Steinbruch am Stradner Kogel bei Wilhelmsdorf, südlich Bad Gleichenberg, Steiermark. Pp. 309-310 in Walter, F. et al. (2019): Neue Mineralfunde aus Österreich LXVIII. Carinthia II, 209./129., 237-362.
      • Feldbach
        • Mühldorf bei Feldbach
Postl, W. and Bojar, H.-P. (2019): 2150) Tinnunculit (Harnsäuredihydrat) aus dem Steinbruch am Steinberg, Mühldorf bei Feldbach, Steiermark. P. 309 in Walter, F. et al. (2019): Neue Mineralfunde aus Österreich LXVIII. Carinthia II, 209./129., 237-362.
      • Klöch
Postl, W. (2019): 2149) Tinnunculit (Harnsäuredihydrat) aus dem Basaltsteinbruch in Klöch, Steiermark. P. 308 in Walter, F. et al. (2019): Neue Mineralfunde aus Österreich LXVIII. Carinthia II, 209./129., 237-362.
Germany
 
  • Hesse
    • Giessen Region
      • Limburg-Weilburg
        • Selters
          • Eisenbach
XRD by Gerhard Möhn
        • Weinbach
XRD by Gerhard Möhn and Joy Desor
  • Rhineland-Palatinate
    • Cochem-Zell District
      • Zell (Mosel)
        • Altlay
XRD by Gerhard Möhn
    • Rhein-Lahn District
      • Bad Ems-Nassau
        • Frücht
XRD by Gerhard Möhn and Joy Desor
Italy
 
  • Emilia-Romagna
    • Modena Province
      • Serramazzoni
Artioli, G., Galli, E., and Ferrari, M. (1993) Uric acid dihydrate - a new mineral? Rivista Mineralogica Italiana, 16, 4 (4-1993), 261-264 [as Unnamed (Uric Acid Dihydrate)]
  • Piedmont
    • Cuneo Province
      • Bagnolo Piemonte
http://forum.amiminerals.it/viewtopic.php?t=13442
      • Canosio
        • Vallone della Valletta
Cámara, F., Bittarello, E., Ciriotti, M.E., Nestola, F., Radica, F., Massimi, F., Balestra, C., Bracco, R. (2017a) As-bearing new mineral species from Valletta mine, Maira Valley, Piedmont, Italy: III. Canosioite, Ba2Fe3+(AsO4)2(OH), description and crystal structure. Mineralogical Magazine, 81, 305–317.
    • Verbano-Cusio-Ossola Province
      • 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)
 
  • Murmansk 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.
 
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