Help mindat.org|Log In|Register|
Home PageMindat NewsThe Mindat ManualHistory of MindatCopyright StatusManagement TeamContact UsAdvertise on Mindat
Donate to MindatSponsor a PageSponsored PagesTop Available PagesMindat AdvertisersAdvertise on Mindat
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralSearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
StatisticsThe ElementsMember ListBooks & MagazinesMineral Shows & EventsThe Mindat DirectoryHow to Link to MindatDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Guanine

This page is currently not sponsored. Click here to sponsor this page.
Guano workings on the north island

North Chincha Island, Peru
Formula:
C5H5N5O
Colour:
white
Hardness:
1 - 2
Crystal System:
Monoclinic
Name:
Bodo Unger reported a new material that believed was xanthine in 1844. Einbrodt (1846) showed the identification was incorrect. Unger (1846) agreed, provided a full corrected description and named it guanine after the guano it was found in.
Aromatic heterocycle; a nucleobase and an important constituent of both DNA and RNA.


Hide all sections | Show all sections

Classification of GuanineHide

Approved
Approval Year:
1973
First Published:
1844
Approval History:
The compound was already found in guano on North Chinca Island, Chile, by Bodo Unger in 1846, but it was confirmed as a natural occurence in bat guano from Murra-el-clevyn Cave, Nullarbor Plain, Western Australia, in 1973.
10.CA.30

10 : ORGANIC COMPOUNDS
C : Miscellaneous Organic Minerals
A : Miscellaneous Organic Minerals
50.4.5.1

50 : ORGANIC COMPOUNDS
4 : Miscellaneous
32.12

32 :

Physical Properties of GuanineHide

Transparency:
Transparent, Translucent
Colour:
white
Streak:
white
Hardness:
1 - 2 on Mohs scale

Chemical Properties of GuanineHide

Formula:
C5H5N5O
IMA Formula:
C5H3(NH2)N4O

Crystallography of GuanineHide

Crystal System:
Monoclinic
Cell Parameters:
a = 16.51 Å, b = 11.27 Å, c = 3.64 Å
β = 96.8°
Ratio:
a:b:c = 1.465 : 1 : 0.323
Unit Cell V:
672.52 ų (Calculated from Unit Cell)

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
7.9 (40)
6.32 (70b)
3.53 (50)
3.22 (100b)
2.63 (50)
2.00 (50)
1.80 (50)

Type Occurrence of GuanineHide

Geological Setting of Type Material:
Seabird guano.

Synonyms of GuanineHide

Other Language Names for GuanineHide

German:Guanin

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.30Tinnunculite (of Chesnokov & Shcherbakova)C10H12N8O8Orth.
10.CA.35UreaCO(NH2)2Tet. 4 2m : P4 21m
10.CA.40UriciteC5H4N4O3Mon.

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
32.13UreaCO(NH2)2Tet. 4 2m : P4 21m
32.14UriciteC5H4N4O3Mon.
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 GuanineHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Unger, B. (1844) Ann. Chem. Phys.: 62: 158.
Unger, B. (1845) Ueber das Xanthin und dessen Verbindungen. Annal. Chem. Phys.: 65: 222-239.
Einbrodt, P. (1846) Notiz uber die Zusammensetzung des Harnoxyds. Annalen der Chemie und Pharmacie: 58: 15-18.
Unger, B. (1846) Bemerkungen zu obiger Notiz. Annalen der Chemie und Pharmacie: 58: 18-20.
Unger, B. (1846) Das Guanin und seine Verbindungen. Annalen der Chemie und Pharmacie: 59: 58-68.
Hutchinson, G.E. (1950) Survey of existing knowledge of biogeochemistry. 3, The biogeochemistry of vertebrate excretion. Bulletin of the American Museum of Natural History: 96: 554 pgs.
Bridge, P.J. (1974) Guanine and uricite, two new organic minerals from Peru and Western Australia. Mineralogical Magazine: 39: 889-890.
Thewalt, U., Bugg, C.E., Marsh, R.E. (1971) The crystal structure of guanine monohydrate. Acta Crystallographica: B27: 2358-2362.

Internet Links for GuanineHide

Localities for GuanineHide

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.
Australia
 
  • Western Australia
    • Dundas Shire
      • Cocklebiddy Roadhouse
Mineralogical Magazine (1974): 39: 889.-890.; Caves: processes, development, and management By David S. Gillieson; Bridge, P.J.(1973):Guano Minerals from Murra-el-Evelyn Cave Western Australia, Mineralogical Magazine (December 1973):39:467-469
      • Madura Roadhouse
Mineralogical Magazine (1977): 41: 33-35.
Chile
 
  • Antofagasta Region
    • El Loa Province
      • San Pedro de Atacama
        • Cordillera de la Sal
De Waele, J., Forti, P., Picotti, V., Galli, E., Rossi, A., Brook, G., & Cucchi, F. (2009). Cave deposits in Cordillera de la Sal (Atacama, Chile). Geological Constrains on the Onset and Evolution of an Extreme Environment: the Atacama area. Geoacta, Special Publication, 2, 113-117.
Mexico
 
  • Coahuila
    • Mun. de Cuatrociénegas
      • Cuatro Ciénegas (Cuatrociénegas de Carranza; Venustiano Carranza)
        • Limestone caves
Forti, P. et al. (2006): ACTA CARSOLOGICA 35/1, 79–98.
Peru (TL)
 
Min Mag 39 (1974), 889
South Africa
 
  • Western Cape Province
    • West Coast District
Minerals of South Africa
Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2017, except where stated. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: September 23, 2017 04:59:41 Page generated: August 28, 2017 11:04:23
Go to top of page