Tinnunculite
A valid IMA mineral species
This page is currently not sponsored. Click here to sponsor this page.
About Tinnunculite
Common Kestrel - falco tinnunculus
Formula:
C5H4N4O3 · 2H2O
structural formula: NHC(O)NHC2C(O)NHC(O)NH·2H2O
Colour:
Colorless, white, yellowish, reddish or ŃĐ°lĐ” lilĐ°Ń
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.
Type Locality:
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.
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.
Unique Identifiers
Mindat ID:
47018
Long-form identifier:
mindat:1:1:47018:0
GUID
(UUID V4):
(UUID V4):
dc743f65-6876-4bdf-b1b7-93662076d500
IMA Classification of Tinnunculite
Approved
Approval year:
2015
First published:
2016
Classification of Tinnunculite
10.CA.65
10 : ORGANIC COMPOUNDS
C : Miscellaneous Organic Minerals
A : Miscellaneous Organic Minerals
10 : ORGANIC COMPOUNDS
C : Miscellaneous Organic Minerals
A : Miscellaneous Organic Minerals
Mineral Symbols
As of 2021 there are now IMAâCNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Tnn | IMAâCNMNC | Warr, L.N. (2021). IMAâCNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Tinnunculite
Vitreous
Transparency:
Transparent, Translucent
Colour:
Colorless, white, yellowish, reddish or ŃĐ°lĐ” lilĐ°Ń
Tenacity:
Brittle
Cleavage:
Distinct/Good
Distinct (010).
Distinct (010).
Density:
1.68 g/cm3 (Calculated)
Optical Data of Tinnunculite
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.
and does not take into account mineral colouration.
Surface Relief:
High
Chemistry of Tinnunculite
Mindat Formula:
C5H4N4O3 · 2H2O
structural formula: NHC(O)NHC2C(O)NHC(O)NH·2H2O
structural formula: NHC(O)NHC2C(O)NHC(O)NH·2H2O
Elements listed:
Crystallography of Tinnunculite
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)°
β = 91.0(1)°
Ratio:
a:b:c = 1.141 : 1 : 2.746
Unit Cell V:
820 Ă
Âł
Z:
4
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 8.82 Ă | (84) |
| 5.97 Ă | (15) |
| 5.63 Ă | (24) |
| 4.22 Ă | (22) |
| 3.24 Ă | (27) |
| 3.18 Ă | (100) |
| 3.116 Ă | (44) |
| 2.576 Ă | (14) |
Comments:
From Type Description.
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 10a: Neoproterozoic oxygenation/terrestrial biosphere | <0.6 |
| 50 : Coal and/or oil shale minerals | <0.36 |
| 52 : Guano- and urine-derived minerals | <0.4 |
| Stage 10b: Anthropogenic minerals | <10 Ka |
| 54 : Coal and other mine fire minerals (see also #51 and #56) |
Type Occurrence of Tinnunculite
General Appearance of Type Material:
Prismatic or tabular crystals, uŃ to 0.2 mm in length, clusters, and crystalline ĐŸĐł 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 Tinnunculite
Other Language Names for Tinnunculite
German:Tinnunculit
Related Minerals - Strunz-mindat Grouping
| 10.CA. | Tholins | (C,H,N) |
| 10.CA. | Natrosulfatourea | Na2(SO4)[CO(NH2)2] |
| 10.CA. | Allantoin | C4H6N4O3 |
| 10.CA. | Bojarite | Cu3(N3C2H2)3(OH)Cl2 · 6H2O |
| 10.CA.05 | Refikite | C20H32O2 |
| 10.CA.10 | Flagstaffite | C10H22O3 |
| 10.CA.15 | Hoelite | C14H8O2 |
| 10.CA.20 | Abelsonite | Ni(C31H32N4) |
| 10.CA.25 | Kladnoite | C6H4(CO)2NH |
| 10.CA.30 | Guanine | C5H5N5O |
| 10.CA.30 | Tinnunculite (of Chesnokov & Shcherbakova) | C10H12N8O8 |
| 10.CA.35 | Urea | CO(NH2)2 |
| 10.CA.40 | Uricite | C5H4N4O3 |
| 10.CA.45 | Chanabayaite | CuCl(N3C2H2)(NH3) · 0.25H2O |
| 10.CA.50 | Triazolite | NaCu2(N3C2H2)2(NH3)2Cl3 · 4H2O |
| 10.CA.55 | Ernstburkeite | Mg(CH3SO3)2 · 12H2O |
| 10.CA.60 | Joanneumite | Cu(C3N3O3H2)2(NH3)2 |
| 10.CA.70 | Dopplerite |
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Tinnunculite
mindat.org URL:
https://www.mindat.org/min-47018.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
External Links:
Mineral Dealers:
References for Tinnunculite
Reference List:
Shirley, R. (1966) Uric acid dihydrate: Crystallography and identification. Science: 152: 1512-1513.
Localities for Tinnunculite
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
â - Click for references and 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).
All localities listed without proper references should be considered as questionable.
Austria | |
| Kolitsch et al. (2011) |
| Kolitsch et al. (2012) |
| Postl et al. (2019) |
| Postl et al. (2019) |
| Postl (2019) |
Canada | |
| Modris Baum collection - Joy Desor ... |
Germany | |
| XRD by Gerhard Möhn |
| XRD by Gerhard Möhn and Joy Desor |
| XRD by Gerhard Möhn |
| XRD by Gerhard Möhn and Joy Desor |
Italy | |
| Artioli et al. (1993) |
| Ciriotti. M.E. et al. (2021) +1 other reference |
| Ciriotti et al. (2021) +1 other reference | |
| CĂĄmara et al. (2017) |
| Guastoni et al. (2020) |
| Cuchet et al. (2016) |
Norway | |
| Kolitsch et al. (2011) |
Russia (TL) | |
| Mineralogical Magazine +2 other references |
Switzerland | |
| Cuchet et al. (2020) |
Quick NavTopAbout TinnunculiteUnique IdentifiersIMA Classification Classification Mineral SymbolsPhysical Properties Optical Data Chemistry Crystallography X-Ray Powder DiffractionGeological EnvironmentType Occurrence SynonymsOther LanguagesStrunz-MindatOther InformationInternet Links References Localities Locality List
Bricco Volti - Monte Ortieul quarrying area, Montoso Quarries, Bagnolo Piemonte, Cuneo Province, Piedmont, Italy