Natural uric acid.
2,6,8-trihydroxypurine according to the organic chemical nomenclature.

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

Classification of UriciteHide

IMA status:

Approved

Approval Year:

1973

Strunz 8th ed.:

9/D.01-40

Nickel-Strunz 10th (pending) ed.:

10.CA.40

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

Dana 8th ed.:

50.4.4.1

50 : ORGANIC COMPOUNDS
4 : Miscellaneous

Hey's CIM Ref.:

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

Elements listed:

C, H, N, O - search for minerals with similar chemistry

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 Å³ (Calculated from Unit Cell)

X-Ray Powder DiffractionHide

Powder Diffraction Data:

d-spacing	Intensity
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

Type Locality:

ⓘ Dingo Donga Cave, Madura Roadhouse, Dundas Shire, Western Australia, Australia

Synonyms of UriciteHide

IMA1973-055

Uric Acid

Other Language Names for UriciteHide

German:Harnsäure
Uricit

Spanish:Uricita

Common AssociatesHide

Associated Minerals Based on Photo Data:

Dolomite	2 photos of Uricite associated with Dolomite on mindat.org.
Quartz	2 photos of Uricite associated with Quartz on mindat.org.

Related Minerals - Nickel-Strunz Grouping Hide

10.CA.	Tholins	(C,H,N)
10.CA.05	Refikite	C₂₀H₃₂O₂	Orth. 2 2 2 : P2₁ 2₁ 2
10.CA.10	Flagstaffite	C₁₀H₂₂O₃	Orth.
10.CA.15	Hoelite	C₁₄H₈O₂	Orth.
10.CA.20	Abelsonite	Ni(C₃₁H₃₂N₄)	Tric. 1 : P1
10.CA.25	Kladnoite	C₆H₄(CO)₂NH	Mon. 2/m
10.CA.30	Guanine	C₅H₅N₅O	Mon.
10.CA.30	Tinnunculite (of Chesnokov & Shcherbakova)	C₁₀H₁₂N₈O₈	Orth.
10.CA.35	Urea	CO(NH₂)₂	Tet. 4 2m : P4 2₁m

Related Minerals - Hey's Chemical Index of Minerals Grouping Hide

32.1	Evenkite	C₂₁H₄₄	Orth. mmm (2/m 2/m 2/m) : Pbcm
32.2	Fichtelite	C₁₉H₃₄	Mon.
32.3	Simonellite	C₁₉H₂₄	Orth. mmm (2/m 2/m 2/m) : Pnna
32.4	Kratochvílite	C₁₃H₁₀	Orth.
32.5	Idrialite	C₂₂H₁₄	Orth.
32.6	Carpathite	C₂₄H₁₂	Mon. 2/m : P2₁/b
32.7	Refikite	C₂₀H₃₂O₂	Orth. 2 2 2 : P2₁ 2₁ 2
32.8	Flagstaffite	C₁₀H₂₂O₃	Orth.
32.9	Hoelite	C₁₄H₈O₂	Orth.
32.10	Kladnoite	C₆H₄(CO)₂NH	Mon. 2/m
32.11	Acetamide	CH₃CONH₂	Trig. 3m : R3c
32.12	Guanine	C₅H₅N₅O	Mon.
32.13	Urea	CO(NH₂)₂	Tet. 4 2m : P4 2₁m
32.15	Abelsonite	Ni(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.

External Links

Search for toxicity information at the United States National Library of Medicine

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

mindat.org URL:

https://www.mindat.org/min-4118.html
Please feel free to link to this page.

Search Engines:

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External Links:

Look for Uricite on Webmineral

Look for Uricite on Wikipedia

Look for Uricite on Mineralien Atlas

Raman and XRD data at RRUFF project

References and PDF downloads at RRUFF project

American Mineralogist Crystal Structure Database

Handbook of Mineralogy page PDF

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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

- This locality has map coordinates listed.

- This locality has estimated coordinates. ⓘ - Click for 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). ~~Struck out~~ - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.


Argentina
Mendoza Malargüe Department ⓘ El Abrigo de el Manzano cave	Benedetto, C., Forti, P., Galli, E., & Rossi, A. (1998). Chemical deposits in volcanic caves of Argentina. International Journal of Speleology, 27(1), 16.

Australia (TL)
Western Australia Dundas Shire Madura Roadhouse ⓘ Dingo Donga Cave (TL)	Mineralogical Magazine (1974): 39: 889.-890.

Austria
Burgenland Oberpullendorf Kobersdorf Pauliberg ⓘ Basalt quarry	Kolitsch, U. et al., to be published
Lower Austria Waldviertel Persenbeug-Gottsdorf ⓘ Loja	Löffler & Kolitsch (2011) (in press)
Upper Austria Mühlviertel Perg Dimbach ⓘ Dimbach - Waldhausen road	peter neschen collection

Germany
Baden-Württemberg Black Forest Wolfach Oberwolfach Rankach valley ⓘ Clara Mine	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 ⓘ Granodiorite quarries (incl. Kusser Quarry)	Habel, M. (2007): Neufunde aus dem östlichen Bayerischen Wald (VII). Mineralien-Welt, 18 (2), 59-64. [Eitzing quarry]
Untergriesbach Kropfmühl ⓘ Grögöd Quarry (G'steinert Quarry)	Mineralien-Welt 18 (5) (2007) 20-26.
Hesse Wetzlar Weilburg Essershausen ⓘ Mark Mine	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 ⓘ Friedrichssegen Mine	Möhn, G., Frohwein, J. & Blaß, G. (2009): Neue Mineralfunde von der Grube Friedrichssegen bei Bad Ems. Lapis 34 (5), 35-40; 58.

Romania
ⓘ Gaura Ţuranului cave	Tudor Tamas, Alexandra Mihaela Giurgiu, Lucian Barbu-Tudoran, Bogdan Mureşan (2017) Uricite from Gaura Ţuranului, NW Romania. In 17th International Congress of Speleology (No. I, p. 271). Australian Speleological Federation Inc.

Russia
Urals Region Southern Urals Chelyabinsk Oblast' Yemanzhelinsk (Emanzhelinsk) ⓘ Baturinskaya Mine	Tony Nikischer

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Uricite

About UriciteHide