[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:1763":3},{"id":4,"longid":5,"guid":6,"name":7,"shortcode_ima":8,"entrytype":9,"entrytype_text":10,"varietyof":11,"synid":11,"polytypeof":11,"groupid":11,"weighting":12,"nolocadd":13,"blacklisted":13,"mindat_formula":14,"mindat_formula_note":15,"ima_formula":16,"elements":17,"sigelements":22,"key_elements":23,"impurities":11,"cim":24,"ima_status":25,"ima_notes":11,"ima_history":27,"approval_year":28,"publication_year":29,"discovery_year":30,"strunz10ed1":31,"strunz10ed2":20,"strunz10ed3":32,"strunz10ed4":33,"dana8ed1":34,"dana8ed2":35,"dana8ed3":36,"dana8ed4":37,"csystem":38,"cclass":39,"spacegroup":40,"spacegroupset":41,"a":42,"b":43,"c":44,"alpha":45,"beta":46,"gamma":45,"aerror":11,"berror":11,"cerror":11,"alphaerror":11,"betaerror":11,"gammaerror":11,"va3":11,"z":47,"csmetamict":13,"commentcrystal":48,"twinning":11,"tranglide":11,"parting":11,"epitaxidescription":11,"morphology":11,"tlform":11,"hmin":49,"hmax":50,"hardtype":11,"vhnmin":45,"vhnmax":45,"vhnerror":11,"vhng":11,"vhns":11,"commenthard":11,"dmeas":45,"dmeas2":45,"dcalc":45,"dmeaserror":11,"dcalcerror":11,"commentdense":11,"lustre":11,"lustretype":11,"commentluster":11,"diapheny":51,"streak":52,"colour":52,"commentcolor":11,"colors":53,"streak_colors":54,"luminescence":11,"uv":11,"cleavage":11,"cleavagetype":11,"fracturetype":11,"tenacity":11,"commentbreak":11,"opticaltype":55,"opticalsign":11,"opticalalpha":45,"opticalalpha2":45,"opticalalphaerror":11,"opticalbeta":45,"opticalbeta2":45,"opticalbetaerror":11,"opticalgamma":45,"opticalgamma2":45,"opticalgammaerror":11,"opticalomega":45,"opticalomega2":45,"opticalomegaerror":11,"opticalepsilon":45,"opticalepsilon2":45,"opticalepsilonerror":11,"opticaln":45,"opticaln2":45,"opticalnerror":11,"optical2vcalc":45,"optical2vcalc2":45,"optical2vcalcerror":11,"optical2vmeasured":45,"optical2vmeasured2":45,"optical2vmeasurederror":11,"rimin":11,"rimax":11,"opticaldispersion":11,"opticalpleochroism":11,"opticalpleochorismdesc":11,"opticalbirefringence":11,"opticalcomments":11,"opticalcolour":11,"opticalinternal":11,"opticaltropic":11,"opticalanisotropism":11,"opticalbireflectance":11,"opticalextinction":11,"opticalr":11,"specdispm":11,"ir":11,"electrical":11,"magnetism":11,"thermalbehaviour":11,"other":56,"industrial":11,"occurrence":57,"otheroccurrence":11,"type_specimen_store":11,"description_short":58,"aboutname":59,"rock_parent":11,"rock_parent2":11,"rock_root":9,"rock_bgs_code":11,"meteoritical_code":11,"updttime":60,"reviewed_at":11,"variety_of":11,"varieties":61,"group_members":62,"associates":63,"confused_with":64,"type_localities":65,"occurrence_total":70,"citations":71,"images":111,"structures":122,"synonyms":129,"language_names":131,"wikidata_qid":157,"texts":158},1763,"1:1:1763:9","fd790e5c-7858-4be7-abc3-0fb74640cb9a","Guanine","Gni",0,"mineral",null,13,false,"C\u003Csub>5\u003C\u002Fsub>H\u003Csub>5\u003C\u002Fsub>N\u003Csub>5\u003C\u002Fsub>O","structural formula: NCHNHC\u003Csub>2\u003C\u002Fsub>C(O)NHC(NH\u003Csub>2\u003C\u002Fsub>)N","C\u003Csub>5\u003C\u002Fsub>H\u003Csub>3\u003C\u002Fsub>(NH\u003Csub>2\u003C\u002Fsub>)N\u003Csub>4\u003C\u002Fsub>O",[18,19,20,21],"N","O","C","H",[18,19,20,21],[18],"32.12",[26],"APPROVED","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.",1973,1844,"1844","10","A","30","50","4","5","1","Monoclinic",5,14,"P21\u002Fc ","16.510","11.277","3.645","0","98.84",4,"Synthetic",1,2,"Transparent,Translucent","white",[52],[52],"Biaxial","M.P. 360 ◦C","Seabird guano.","Aromatic heterocycle (an organic cyclic carbon compound with additional, non-carbon atom(s)); a nucleobase and an important constituent of both DNA and RNA.\r\n\r\nSpacing change of guanine crystals in the skin of chameleons is responsible for their showca...","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.","2025-08-11 12:14:20",[],[],[],[],[66],{"id":67,"txt":68,"latitude":11,"longitude":11,"country":69},2566,"North Chincha Island, Chincha Islands, San Clemente District, Pisco Province, Ica, Peru","Peru",6,[72,75,79,83,86,89,93,98,103,107],{"id":73,"year":29,"html":74,"doi":11},16110982,"Unger, B. (1844) Ann. Chem. Phys.: 62: 158.",{"id":76,"year":77,"html":78,"doi":11},16110983,1845,"Unger, B. (1845) Ueber das Xanthin und dessen Verbindungen. Annal. Chem. Phys.: 65: 222-239.",{"id":80,"year":81,"html":82,"doi":11},16110984,1846,"Einbrodt, P. (1846) Notiz uber die Zusammensetzung des Harnoxyds. Annalen der Chemie und Pharmacie: 58: 15-18.",{"id":84,"year":81,"html":85,"doi":11},16110985,"Unger, B. (1846) Bemerkungen zu obiger Notiz. Annalen der Chemie und Pharmacie: 58: 18-20.",{"id":87,"year":81,"html":88,"doi":11},16110986,"Unger, B. (1846) Das Guanin und seine Verbindungen. Annalen der Chemie und Pharmacie: 59: 58-68.",{"id":90,"year":91,"html":92,"doi":11},16110987,1950,"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.",{"id":94,"year":95,"html":96,"doi":97},216613,1971,"Thewalt, U., Bugg, C. E., Marsh, R. E. (1971) The crystal structure of guanine monohydrate. \u003Ci>Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry\u003C\u002Fi>,  27 (12) 2358-2363 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1107\u002Fs0567740871005880'>doi:10.1107\u002Fs0567740871005880\u003C\u002Fa>","10.1107\u002Fs0567740871005880",{"id":99,"year":100,"html":101,"doi":102},6810,1974,"Bridge, P. J. (1974) Guanine and uricite, two new organic minerals from Peru and Western Australia. \u003Ci>Mineralogical Magazine\u003C\u002Fi>,  39 (308) 889-890 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002Fminmag.1974.039.308.08'>doi:10.1180\u002Fminmag.1974.039.308.08\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002FMinMag\u002FVolume_39\u002F39-308-889.pdf' class='refpdflink'>\u003C\u002Fa>","10.1180\u002Fminmag.1974.039.308.08",{"id":104,"year":105,"html":106,"doi":11},16964685,2005,"(2005) Guanine. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002Fguanine.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":108,"year":109,"html":110,"doi":11},16110989,2015,"Teyssier, J., Saenko, S.V., van der Marel, D., Milinkovitch, M.C. (2015): Photonic crystals cause active colour change in chameleons. Nature Comm.: 6: 6386; https:\u002F\u002Fwww.nature.com\u002Farticles\u002Fncomms7368",[112],{"id":113,"source_url":114,"license_code":115,"credit_html":116,"title":117,"description":118,"author":119,"original_width":120,"original_height":121},10541,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=103363101","CC BY-SA 4.0","David Hospital, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=103363101\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Guanine-North Chincha Island.jpg","Yellow guanine crystals from the type locality (North Chincha Island, Pisco Province, Ica Department, Peru) and only one of the very few known localities worldwide. Original color of guanine is white but it darkens to yellow with exposure to light and time, as many organic compounds. 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. Structural formula: NCHNHC2C(O)NHC(NH2)N. Aromatic heterocycle (an organic cyclic carbon compound with additional, non-carbon atom(s)); a nucleobase and an important constituent of both DNA and RNA. Ex Vandenbroucke Museum collection from Waregem, Belgium.","David Hospital",645,567,[123],{"id":124,"url":125,"label":126,"formula":127,"spacegroup":128,"year":95},5799,"\u002Fcif\u002F5799.cif","Thewalt 1971","C5 H7 N5 O2","P 1 21\u002Fn 1",[130],"IMA1973-056",[132,136,140,145,149,153],{"lang":133,"names":134},"bn",[135],"গুয়ানিন",{"lang":137,"names":138},"ca",[139],"guanina",{"lang":141,"names":142},"de",[143,144],"Guanin","IMA 1973-056",{"lang":146,"names":147},"it",[148,7],"Guanina",{"lang":150,"names":151},"nn",[152],"guanin",{"lang":154,"names":155},"ru",[156],"гуанин","Q3778218",{"history":11,"applications":11}]