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Uricite

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Formula:
C5H4N4O3
Colour:
yellowish white, colourless, light brown
Hardness:
1 - 2
Crystal System:
Monoclinic
Name:
The name reflects its chemical identity: uric acid.
Natural uric acid.
2,6,8-trihydroxypurine according to the organic chemical nomenclature.

See also the visually very similar Unnamed (Uric Acid Dihydrate).


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Classification of UriciteHide

Approved
Approval Year:
1973
10.CA.40

10 : ORGANIC COMPOUNDS
C : Miscellaneous Organic Minerals
A : Miscellaneous Organic Minerals
50.4.4.1

50 : ORGANIC COMPOUNDS
4 : Miscellaneous
32.14

32 :

Physical Properties of UriciteHide

Transparency:
Translucent
Colour:
yellowish white, colourless, light brown
Streak:
white
Hardness:
1 - 2 on Mohs scale

Chemical Properties of UriciteHide

Formula:
C5H4N4O3
CAS Registry number:
69-93-2

CAS Registry numbers are published by the American Chemical Society

Crystallography of UriciteHide

Crystal System:
Monoclinic
Cell Parameters:
a = 14.46 Å, b = 7.4 Å, c = 6.2 Å
β = 65.2°
Ratio:
a:b:c = 1.954 : 1 : 0.838
Unit Cell V:
602.24 ų (Calculated from Unit Cell)

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
6.55 (43)
4.91 (51)
3.864 (42)
3.180 (55)
3.093 (100)
3.087 (69)
2.866 (25)

Type Occurrence of UriciteHide

Synonyms of UriciteHide

Other Language Names for UriciteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Dolomite2 photos of Uricite associated with Dolomite on mindat.org.
Quartz2 photos of Uricite associated with Quartz on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

10.CA.Tholins(C,H,N)
10.CA.05RefikiteC20H32O2Orth. 2 2 2 : P21 21 2
10.CA.10FlagstaffiteC10H22O3Orth.
10.CA.15HoeliteC14H8O2Orth.
10.CA.20AbelsoniteNi(C31H32N4)Tric. 1 : P1
10.CA.25KladnoiteC6H4(CO)2NHMon. 2/m
10.CA.30GuanineC5H5N5OMon.
10.CA.30Tinnunculite (of Chesnokov & Shcherbakova)C10H12N8O8Orth.
10.CA.35UreaCO(NH2)2Tet. 4 2m : P4 21m

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

32.1EvenkiteC21H44Orth. mmm (2/m 2/m 2/m) : Pbcm
32.2FichteliteC19H34Mon.
32.3SimonelliteC19H24Orth. mmm (2/m 2/m 2/m) : Pnna
32.4KratochvíliteC13H10Orth.
32.5IdrialiteC22H14Orth.
32.6CarpathiteC24H12Mon. 2/m : P21/b
32.7RefikiteC20H32O2Orth. 2 2 2 : P21 21 2
32.8FlagstaffiteC10H22O3Orth.
32.9HoeliteC14H8O2Orth.
32.10KladnoiteC6H4(CO)2NHMon. 2/m
32.11AcetamideCH3CONH2Trig. 3m : R3c
32.12GuanineC5H5N5OMon.
32.13UreaCO(NH2)2Tet. 4 2m : P4 21m
32.15AbelsoniteNi(C31H32N4)Tric. 1 : P1

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 UriciteHide

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.
Ringertz, H. (1966): The molecular and crystal structure of uric acid. Acta Crystallogr., 20, 397-403.
Lonsdale, K. & Mason, P. (1966): Uric acid, uric acid dihydrate, and urates in urinary calculi, ancient and modern. Science 152, 1511-1512.
Shirley, R. & Sutor, D. J. (1968): Anhydrous uric acid: nature and occurrence of a new form in urinary calculi. Science 159, 544.
Bridge, P. J. (1974): Guanine and uricite, two new organic minerals from Peru and Western Australia. Mineralogical Magazine 39, 889-890.
Rinaudo, C. & Boistelle, R. (1980): The occurrence of uric acids and the growth morphology of the anhydrous monoclinic modification: C5H4N4O3. Journal of Crystal Growth 49, 569-579.
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.

Internet Links for UriciteHide

Localities for UriciteHide

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

(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Australia (TL)
 
  • Western Australia
    • Dundas Shire
      • Madura Roadhouse
Mineralogical Magazine (1974): 39: 889.-890.
Austria
 
  • Burgenland
    • Oberpullendorf
      • Kobersdorf
        • Pauliberg
Kolitsch, U. et al., to be published
  • Lower Austria
    • Waldviertel
      • Persenbeug-Gottsdorf
Löffler & Kolitsch (2011) (in press)
  • Upper Austria
    • Mühlviertel
      • Perg
        • Dimbach
peter neschen collection
Germany
 
  • Baden-Württemberg
    • Black Forest
      • Wolfach
        • Oberwolfach
          • Rankach valley
U. Kolitsch, J. Gröbner, F. Brandstätter and R. Bayerl (2010): Neufunde aus der Grube Clara im mittleren Schwarzwald (IV): Calcioandyrobertsit, Cotunnit, Gerhardtit, Khaidarkanit, Lukrahnit, Mckinstryit, Moolooit, Rhabdophan-(La), Rouait und Uricit. Lapis 35 (9), 22-27; 62 (in German).
  • Bavaria
    • Lower Bavaria
      • Tittling
        • Hötzendorf
Habel, M. (2007): Neufunde aus dem östlichen Bayerischen Wald (VII). Mineralien-Welt, 18 (2), 59-64. [Eitzing quarry]
      • Untergriesbach
        • Kropfmühl
Mineralien-Welt 18 (5) (2007) 20-26.
  • Hesse
    • Wetzlar
      • Weilburg
        • Essershausen
Blaß, G. & Möhn, G. (2010): Neue Mineralien von der Grube Mark bei Essershausen im Taunus. Mineralien-Welt 21 (2), 26-29.
  • Rhineland-Palatinate
    • Lahn valley
      • Bad Ems District
        • Frücht
Möhn, G., Frohwein, J. & Blaß, G. (2009): Neue Mineralfunde von der Grube Friedrichssegen bei Bad Ems. Lapis 34 (5), 35-40; 58.
Italy
 
  • Piedmont
    • Torino Province
      • Pellice Valley
        • Luserna Valley
G. Blass (EDX) - U. Kolitsch (PXRD) - April 2010
Russia
 
  • Urals Region
    • Southern Urals
      • Chelyabinsk Oblast'
        • Yemanzhelinsk (Emanzhelinsk)
Tony Nikischer
Mineral and/or Locality  
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