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Uricite

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

See also Unnamed (Uric Acid Dihydrate).

Classification of Uricite

Approved 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 :
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Type Occurrence of Uricite

Year of Discovery:
1973

Physical Properties of Uricite

Diaphaneity (Transparency):
Translucent
Colour:
yellowish white, colourless, light brown
Streak:
white
Hardness (Mohs):
1 - 2

Crystallography of Uricite

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

Chemical Properties of Uricite

Formula:
C5H4N4O3
Essential elements:
All elements listed in formula:
CAS Registry number:
69-93-2

CAS Registry numbers are published by the American Chemical Society

Relationship of Uricite to other Species

10.CA.05RefikiteC20H32O2
10.CA.10FlagstaffiteC10H22O3
10.CA.15HoeliteC14H8O2
10.CA.20AbelsoniteNi(C31H32N4)
10.CA.25KladnoiteC6H4(CO)2NH
10.CA.30GuanineC5H5N5O
10.CA.30TinnunculiteC10H12N8O8
10.CA.35UreaCO(NH2)2
32.1EvenkiteC21H44
32.2 Fitchtelite
32.3SimonelliteC19H24
32.4KratochvíliteC13H10
32.5IdrialiteC22H14
32.6CarpathiteC24H12
32.7RefikiteC20H32O2
32.8FlagstaffiteC10H22O3
32.9HoeliteC14H8O2
32.10KladnoiteC6H4(CO)2NH
32.11AcetamideCH3CONH2
32.12GuanineC5H5N5O
32.13UreaCO(NH2)2
32.15AbelsoniteNi(C31H32N4)

Other Names for Uricite

Name in Other Languages:

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.

References for Uricite

Reference List:
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 Uricite

Localities for Uricite

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.
(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)
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
      • Luserna San Giovanni
G. Blass (EDX) - U. Kolitsch (PXRD) - April 2010
Mineral and/or Locality  
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