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Uricite

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Formula:
C
 
5
H
 
4
N
 
4
O
 
3
System:MonoclinicColour: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

IMA status:Approved 1973
Strunz 8th edition ID:9/D.01-40
Nickel-Strunz 10th (pending) edition ID:10.CA.40

10 : ORGANIC COMPOUNDS
C : Miscellaneous Organic Minerals
A : Miscellaneous Organic Minerals
Dana 8th edition ID:50.4.4.1

50 : ORGANIC COMPOUNDS
4 : Miscellaneous
Hey's CIM Ref.:32.14

32 :
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Type Occurrence of Uricite

Type Locality:Dingo Donga Cave, Madura Roadhouse, Dundas Shire, Western Australia, Australia
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:
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:
C
 
5
H
 
4
N
 
4
O
 
3
Simplified for copy/paste:C5H4N4O3
Essential elements:C, H, N, O
All elements listed in formula:C, H, N, O
CAS Registry number:69-93-2

CAS Registry numbers are published by the American Chemical Society

Relationship of Uricite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
10.CA.05Refikite
C
 
20
H
 
32
O
 
2
10.CA.10Flagstaffite
C
 
10
H
 
22
O
 
3
10.CA.15Hoelite
C
 
14
H
 
8
O
 
2
10.CA.20Abelsonite
Ni(C
 
31
H
 
32
N
 
4
)
10.CA.25Kladnoite
C
 
6
H
 
4
(CO)
 
2
NH
10.CA.30Guanine
C
 
5
H
 
5
N
 
5
O
10.CA.30Tinnunculite
C
 
10
H
 
12
N
 
8
O
 
8
10.CA.35Urea
CO(NH
 
2
)
 
2
Related Minerals - Hey's Index Grouping:

- +
32.1Evenkite
C
 
21
H
 
44
32.2 Fitchtelite
32.3Simonellite
C
 
19
H
 
24
32.4Kratochvílite
C
 
13
H
 
10
32.5Idrialite
C
 
22
H
 
14
32.6Carpathite
C
 
24
H
 
12
32.7Refikite
C
 
20
H
 
32
O
 
2
32.8Flagstaffite
C
 
10
H
 
22
O
 
3
32.9Hoelite
C
 
14
H
 
8
O
 
2
32.10Kladnoite
C
 
6
H
 
4
(CO)
 
2
NH
32.11Acetamide
CH
 
3
CONH
 
2
32.12Guanine
C
 
5
H
 
5
N
 
5
O
32.13Urea
CO(NH
 
2
)
 
2
32.15Abelsonite
Ni(C
 
31
H
 
32
N
 
4
)

Other Names for Uricite

Synonyms:
IMA1973-055Uric Acid
Other Languages:
German:Harnsäure
Uricit
Spanish:Uricita

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
External LinksSearch for toxicity information at the United States National Library of Medicine

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

Search Engines:
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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Uricite details from Handbook of Mineralogy (PDF)
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  • Localities for Uricite

    The 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. ? 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
     
    • 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
        • Bavarian Forest
          • Hauzenberg
            • Kropfmühl
    Mineralien-Welt 18 (5) (2007) 20-26.
          • Tittling
            • Stützersdorf
    Habel, M. (2007): Neufunde aus dem östlichen Bayerischen Wald (VII). Mineralien-Welt, 18 (2), 59-64. [Eitzing quarry]
    • 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
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