Mineralienatlas - Fossilienatlas
Tinnunculite |
Pictures (2 Images total)
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Tinnunculite Tinnunculite (originally described as Unnamed Uric acid dihydrate) as pale pinkish to flesh-coloured, sometimes also white, lancet-like crystals up to ~0.2 mm on matrix; most probably formed from bird dropping. Amidst the crystals lie a few tiny fragments of a brownish chitinous exoskeleton. Find by Josef Metzger, photo Fritz Schreiber; Note that uric acid dihydrate is visually indistinguishable from uricite. Crystals of both are always fragile and either strongly or loosely connected to the matrix; This photo was originally published in: Kolitsch, U. & Raade, G. (2011): Uric acid dihydrate: occurrences in Austria and Norway. Norsk Bergverksmuseum Skrift. 46, 25-29; Locality: Power station, Sportgastein, Naßfeld valley, Gastein valley, Hohe Tauern, Salzburg, Austria; Fov:; Copyright: Fritz Schreiber; Contribution: Stefan Location: Österreich/Salzburg/St. Johann im Pongau, Bezirk/Bad Gastein/Böckstein/Naßfeld/Kraftwerkstollen Mineral: Tinnunculite Image: 1521704302 License: Usage for Mineralienatlas project only |
Tinnunculite |
Tinnunculite (originally described as Unnamed Uric acid dihydrate) as pale pinkish to flesh-coloured, sometimes also white, lancet-like crystals up to 0.2 mm on matrix; most probably formed from b... |
Copyright: | Fritz Schreiber |
Contribution: Stefan 2018-03-22 |
Locality: Kraftwerkstollen / Naßfeld / Böckstein / Bad Gastein / St. Johann im Pongau, Bezirk / Salzburg / Österreich |
Views (File: ): 467
feintafeliger farbloser Tinnunculit mit Uricit aus der Schlacke (EDX-analysiert) Deutschland/Rheinland-Pfalz/Rhein-Lahn-Kreis/Bad Ems/Grube Friedrichssegen, BB = 2,5 mm Copyright: husi; Contribution: Münchener Micromounter Collection: Lithothek der Münchener Micromounter, Collection number: A042720, Donator: Gerhard Möhn Location: Deutschland/Rheinland-Pfalz/Rhein-Lahn-Kreis/Lahnstein, Stadt/Grube Friedrichssegen Mineral: Tinnunculite Image: 1584370174 License: Usage for Mineralienatlas project only |
feintafeliger farbloser Tinnunculit mit Uricit aus der Schlacke (EDX-analysiert) (SNr: A042720) |
Deutschland/Rheinland-Pfalz/Rhein-Lahn-Kreis/Bad Ems/Grube Friedrichssegen, BB = 2,5 mm |
Collection: | Lithothek der Münchener Micromounter |
Copyright: | husi |
Contribution: Münchener Micromounter 2020-03-16 |
Locality: Grube Friedrichssegen / Lahnstein, Stadt / Rhein-Lahn-Kreis / Rheinland-Pfalz / Deutschland |
Collectors Summary
Color | farblos, weiß, gelblich, rötlich oder blasslila |
Streak color | weiß |
Lustre | Glasglanz |
Cleavages | ausgeprägte (010) |
Solubility | +++ HNO3, - H2O |
Crystal System | monoklin, P21/c |
Morphology | Das Mineral kommt als prismatische oder tafelige Kristalle bis zu einer Größe von 0,01 × 0,1 × 0,2 mm und deren Cluster sowie als kristalline oder mikroglobuläre Krusten vor. |
Chemism
Chemical formula |
C5H4N4O3·2H2O |
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Empirical formula (analysis) |
C4.99H8N4.07O4.94 |
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Additional chem. information |
Kristallines Harnsäure-Dihydrat (UAD) |
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Chemical composition |
Kohlenstoff, Sauerstoff, Stickstoff, Wasserstoff |
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Analysis wt% |
O 37.5, |
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Strunz 9th edition incl. updates |
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10: Organische Verbindungen |
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Lapis Classification |
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IX: ORGANISCHE VERBINDUNGEN |
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Classification by Hölzel |
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A: ORGANIC COMPLEXES |
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IMA status |
anerkannt - CNMNC Dez. 2015 |
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Mineral status |
anerkanntes Mineral |
Optical Properties
Crystallography
Physical Properties
1.73 (gemessen) 1.68 (berechnet) |
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1.678 ( ρ calc. Mineralienatlas ) |
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ausgeprägte (010) |
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weich und spröde |
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Instability |
+++ HNO3, - H2O |
(Co-)Type locality
(Co-)Type locality |
Russland/Nordwestrussland, Föderationskreis/Murmansk, Oblast/Kola-Halbinsel/Chibiny (Khibiny)/Rasvumchorr |
Type material |
Fersman Mineralogical Museum of the Russian Academy of Sciences, Moskau, Russland |
Collection number of type material |
4695/1 |
Preface
References
Other languages
German |
Tinnunculit |
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Spanish |
Tinnunculita |
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French |
Tinnunculite |
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English |
Tinnunculite |
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Russian |
Тиннункулит |
Alternative Name
Tinnuculite |
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German |
Tinnunkulit |
CNMNC (IMA)-Number
IMA 2015-021a |
CNMNC symbol
Symbol |
Tnn |
Automatic Links to external internet sources (Responsibility is with the operator)
Mineral Dealer
Locations with GPS information
IDs
GUSID (Global unique identifier short form) | 0WL37TXJSEuCzCaMypR6qA |
GUID (Global unique identifier) | EDF762D1-C935-4B48-82CC-268CCA947AA8 |
Database ID | 3849 |