[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:43891":3},{"id":4,"longid":5,"guid":6,"name":7,"shortcode_ima":8,"entrytype":9,"entrytype_text":10,"varietyof":11,"synid":11,"polytypeof":11,"groupid":12,"weighting":13,"nolocadd":14,"blacklisted":14,"mindat_formula":15,"mindat_formula_note":11,"ima_formula":15,"elements":16,"sigelements":20,"key_elements":11,"impurities":11,"cim":11,"ima_status":21,"ima_notes":11,"ima_history":11,"approval_year":23,"publication_year":24,"discovery_year":11,"strunz10ed1":25,"strunz10ed2":26,"strunz10ed3":27,"strunz10ed4":11,"dana8ed1":28,"dana8ed2":28,"dana8ed3":28,"dana8ed4":28,"csystem":29,"cclass":30,"spacegroup":11,"spacegroupset":28,"a":31,"b":11,"c":11,"alpha":11,"beta":11,"gamma":11,"aerror":32,"berror":11,"cerror":11,"alphaerror":11,"betaerror":11,"gammaerror":11,"va3":11,"z":33,"csmetamict":14,"commentcrystal":34,"twinning":11,"tranglide":11,"parting":11,"epitaxidescription":11,"morphology":11,"tlform":35,"hmin":11,"hmax":11,"hardtype":11,"vhnmin":11,"vhnmax":11,"vhnerror":11,"vhng":11,"vhns":11,"commenthard":11,"dmeas":11,"dmeas2":11,"dcalc":36,"dmeaserror":11,"dcalcerror":11,"commentdense":11,"lustre":11,"lustretype":11,"commentluster":11,"diapheny":37,"streak":11,"colour":38,"commentcolor":11,"colors":39,"streak_colors":11,"luminescence":11,"uv":11,"cleavage":11,"cleavagetype":11,"fracturetype":11,"tenacity":11,"commentbreak":11,"opticaltype":11,"opticalsign":11,"opticalalpha":11,"opticalalpha2":11,"opticalalphaerror":11,"opticalbeta":11,"opticalbeta2":11,"opticalbetaerror":11,"opticalgamma":11,"opticalgamma2":11,"opticalgammaerror":11,"opticalomega":11,"opticalomega2":11,"opticalomegaerror":11,"opticalepsilon":11,"opticalepsilon2":11,"opticalepsilonerror":11,"opticaln":11,"opticaln2":11,"opticalnerror":11,"optical2vcalc":11,"optical2vcalc2":11,"optical2vcalcerror":11,"optical2vmeasured":11,"optical2vmeasured2":11,"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":11,"industrial":11,"occurrence":42,"otheroccurrence":11,"type_specimen_store":43,"description_short":44,"aboutname":45,"rock_parent":11,"rock_parent2":11,"rock_root":9,"rock_bgs_code":11,"meteoritical_code":11,"updttime":46,"reviewed_at":11,"variety_of":11,"varieties":47,"group_members":48,"associates":95,"confused_with":96,"type_localities":110,"occurrence_total":62,"citations":117,"images":147,"structures":148,"synonyms":178,"language_names":183,"wikidata_qid":201,"texts":202},43891,"1:1:43891:7","9890f712-cc91-4bb0-b1d5-b96a781cce66","Ahrensite","Ahr",0,"mineral",null,52868,11,false,"SiFe\u003Csub>2\u003C\u002Fsub>O\u003Csub>4\u003C\u002Fsub>",[17,18,19],"Fe","Si","O",[17,18,19],[22],"APPROVED",2013,2014,"9","A","C","0","Isometric",32," 8.1629",7,8,"Fd-3m","5–20 μm polycrystalline aggregates consisting of submicron-sized crystals of 50–400 nm in diameter with grain size generally increasing towards the melt pocket.","4.135","Translucent","Bluish-green",[40,41],"blue","green","Shock melted Martian meteorite (the Tissint Martian meteorite).","Type material is in Tissint sections UT1 and UT2 deposited in the Meteorite Collection of the Frank H. McClung Museum at the University of Tennessee, Knoxville, Tennessee, USA.","A silicate spinel and the Fe2+analogue of ringwoodite.  There is at least a partial series with ringwoodite (Bindi et al., 2020).","The name honors Thomas J. Ahrens (April 25, 1936 – November 24, 2010), a geophysicist at the California Institute of Technology, for his many fundamental contributions to high-pressure mineral physics research. ","2025-08-11 12:15:10",[],[49,57,66,73,80,87],{"id":50,"name":51,"entrytype":9,"csystem":29,"ima_formula":52,"mindat_formula":53,"hmin":54,"hmax":54,"dmeas":28,"dcalc":55,"primary_image_id":56},792,"Brunogeierite","Fe\u003Csup>2+\u003C\u002Fsup>\u003Csub>2\u003C\u002Fsub>Ge\u003Csup>4+\u003C\u002Fsup>O\u003Csub>4\u003C\u002Fsub>","Ge\u003Csup>4+\u003C\u002Fsup>Fe\u003Csup>2+\u003C\u002Fsup>\u003Csub>2\u003C\u002Fsub>O\u003Csub>4\u003C\u002Fsub>",5,"5.51",4094,{"id":58,"name":59,"entrytype":9,"csystem":29,"ima_formula":60,"mindat_formula":61,"hmin":62,"hmax":63,"dmeas":28,"dcalc":64,"primary_image_id":65},1548,"Filipstadite","(Fe\u003Csup>3+\u003C\u002Fsup>\u003Csub>0.5\u003C\u002Fsub>Sb\u003Csup>5+\u003C\u002Fsup>\u003Csub>0.5\u003C\u002Fsub>)Mn\u003Csup>2+\u003C\u002Fsup>\u003Csub>2\u003C\u002Fsub>O\u003Csub>4\u003C\u002Fsub>","(Fe\u003Csup>3+\u003C\u002Fsup>\u003Csub>0.5\u003C\u002Fsub>Sb\u003Csup>5+\u003C\u002Fsup>\u003Csub>0.5\u003C\u002Fsub>)Mn\u003Csub>2\u003C\u002Fsub>O\u003Csub>4\u003C\u002Fsub>",6,6.5,"4.9",8923,{"id":67,"name":68,"entrytype":9,"csystem":29,"ima_formula":69,"mindat_formula":69,"hmin":32,"hmax":32,"dmeas":70,"dcalc":71,"primary_image_id":72},3331,"Qandilite","(Mg,Fe\u003Csup>3+\u003C\u002Fsup>)\u003Csub>2\u003C\u002Fsub>(Ti,Fe\u003Csup>3+\u003C\u002Fsup>,Al)O\u003Csub>4\u003C\u002Fsub>","4.03","4.04",20383,{"id":74,"name":75,"entrytype":9,"csystem":29,"ima_formula":76,"mindat_formula":77,"hmin":11,"hmax":11,"dmeas":28,"dcalc":78,"primary_image_id":79},3421,"Ringwoodite","SiMg\u003Csub>2\u003C\u002Fsub>O\u003Csub>4\u003C\u002Fsub>","(Mg,Fe\u003Csup>2+\u003C\u002Fsup>)\u003Csub>2\u003C\u002Fsub>SiO\u003Csub>4\u003C\u002Fsub>","3.9",20946,{"id":81,"name":82,"entrytype":9,"csystem":83,"ima_formula":84,"mindat_formula":84,"hmin":11,"hmax":11,"dmeas":28,"dcalc":85,"primary_image_id":86},7072,"Tegengrenite","Trigonal","(Mn\u003Csup>3+\u003C\u002Fsup>\u003Csub>0.5\u003C\u002Fsub>Sb\u003Csup>5+\u003C\u002Fsup>\u003Csub>0.5\u003C\u002Fsub>)Mg\u003Csub>2\u003C\u002Fsub>O\u003Csub>4\u003C\u002Fsub>","4.58",23745,{"id":88,"name":89,"entrytype":9,"csystem":29,"ima_formula":90,"mindat_formula":91,"hmin":92,"hmax":62,"dmeas":28,"dcalc":93,"primary_image_id":94},4089,"Ulvöspinel","Fe\u003Csup>2+\u003C\u002Fsup>\u003Csub>2\u003C\u002Fsub>TiO\u003Csub>4\u003C\u002Fsub>","TiFe\u003Csup>2+\u003C\u002Fsup>\u003Csub>2\u003C\u002Fsub>O\u003Csub>4\u003C\u002Fsub>",5.5,"4.78",2677,[],[97,103,109],{"id":98,"name":99,"entrytype":9,"csystem":100,"ima_formula":101,"mindat_formula":102,"hmin":11,"hmax":11,"dmeas":11,"dcalc":11,"primary_image_id":11},53233,"Asimowite","Orthorhombic","Fe\u003Csub>2\u003C\u002Fsub>SiO\u003Csub>4\u003C\u002Fsub>","Fe\u003Csup>2+\u003C\u002Fsup>\u003Csub>4\u003C\u002Fsub>O(Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>)",{"id":104,"name":105,"entrytype":9,"csystem":100,"ima_formula":106,"mindat_formula":106,"hmin":32,"hmax":32,"dmeas":107,"dcalc":28,"primary_image_id":108},1458,"Fayalite","Fe\u003Csup>2+\u003C\u002Fsup>\u003Csub>2\u003C\u002Fsub>(SiO\u003Csub>4\u003C\u002Fsub>)","4.39",8360,{"id":74,"name":75,"entrytype":9,"csystem":29,"ima_formula":76,"mindat_formula":77,"hmin":11,"hmax":11,"dmeas":28,"dcalc":78,"primary_image_id":79},[111],{"id":112,"txt":113,"latitude":114,"longitude":115,"country":116},237014,"Tissint Martian meteorite, Tata Cercle, Tata Province, Souss-Massa Region, Morocco",29.4819444,-7.6108333,"Morocco",[118,122,125,128,132,136,140,144],{"id":119,"year":23,"html":120,"doi":121},244434,"Williams, P. A., Hatert, F., Pasero, M., Mills, S. J. (2013) New minerals and nomenclature modifications approved in 2013. CNMNC Newsletter No 16. \u003Ci>Mineralogical Magazine\u003C\u002Fi>,  77 (6) 2695-2709 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002Fminmag.2013.077.6.01'>doi:10.1180\u002Fminmag.2013.077.6.01\u003C\u002Fa>","10.1180\u002Fminmag.2013.077.6.01",{"id":123,"year":24,"html":124,"doi":11},16139658,"Ma, C., Tschauner, O., Liu, Y., Beckett, J.R., Rossman, G.R., Zuravlev, K., Prakapenka, V., Dera, P., Sinogeikin, S., Smith, J., Taylor, L.A. (2014) Discovery of Ahrensite gamma-Fe2SiO4 and Tissintite (Ca, Na, □) AlSi2O6: Two New High Pressure Minerals from the Tissint Martian Meteorite. \u003Ci>45th Lunar and Planetary Science Conference\u003C\u002Fi>.  \u003Ca target='_blank' href='http:\u002F\u002Fwww.hou.usra.edu\u002Fmeetings\u002Flpsc2014\u002Fpdf\u002F1222.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":126,"year":24,"html":127,"doi":11},16139666,"Ma, Chi, Tschauner, Oliver, Beckett, John R., Liu, Yang, Rossman, George R., Zuravlev, Kirill, Prakapenka, Vitali, Dera, Przemyslaw, Sinogeikin, Stanislav, Smith, Jesse, Taylor, Lawrence A. (2014) First New Minerals from Mars: Discovery of Ahrensite γ-Fe2SiO4 and Tissintite (Ca,Na,□)AlSi2O6, Two High Pressure Phases from the Tissint Martian Meteorite. \u003Ci>Eighth International Conference on Mars\u003C\u002Fi>.  \u003Ca target='_blank' href='http:\u002F\u002Fwww.hou.usra.edu\u002Fmeetings\u002F8thmars2014\u002Fpdf\u002F1317.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":129,"year":24,"html":130,"doi":131},397578,"Biagioni, C., Pasero, M. (2014) The systematics of the spinel-type minerals: An overview. \u003Ci>American Mineralogist\u003C\u002Fi>,  99 (7) 1254-1264 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2138\u002Fam.2014.4816'>doi:10.2138\u002Fam.2014.4816\u003C\u002Fa>","10.2138\u002Fam.2014.4816",{"id":133,"year":134,"html":135,"doi":11},16139664,2016,"Ma, C., Tschauner, O., Beckett, J.R., Liu, Y., Rossman, G.R., Sinogeikin, S.V., Smith, J.S., Taylor, L.A. (2016) Ahrensite, γ-Fe2SiO4, a new shock-metamorphic mineral from the Tissint meteorite: Implications for the Tissint shock event on Mars. Geochimica et Cosmochimica Acta: 184: 240-256.",{"id":137,"year":138,"html":139,"doi":11},15929276,2020,"Bindi, L., Shim, S-H., Sharp, T.G., Xie, X. (2020) Evidence forthe charge disproportionation of iron in extraterrestrial bridgmanite. Science Advances 6(2) (eaay 7893).",{"id":141,"year":142,"html":143,"doi":11},16133614,2022,"Gu, Lixin; Hu, Sen; Anand, Mahesh; Tang, Xu; Ji, Jianglong; Zhang, Bin; Wang, Nian; Lin, Yangting (2022) Occurrence of tuite and ahrensite in Zagami and their significance for shock-histories recorded in martian meteorites. American Mineralogist: 107(6): 1018–1029.",{"id":145,"year":142,"html":146,"doi":11},16962578,"(2022) Ahrensite. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002FAhrensite.pdf' class='refpdflink'>\u003C\u002Fa>",[],[149,155,161,167,172],{"id":150,"url":151,"label":152,"formula":153,"spacegroup":154,"year":134},122,"\u002Fcif\u002F122.cif","Ma 2016","Fe1.15 Mg.86 Si1.04 O4","F d 3 m",{"id":156,"url":157,"label":158,"formula":159,"spacegroup":154,"year":160},123,"\u002Fcif\u002F123.cif","Yamanaka 2001","(Fe2 Si) O4",2001,{"id":162,"url":163,"label":164,"formula":165,"spacegroup":154,"year":166},124,"\u002Fcif\u002F124.cif","Yamanaka 1986","Fe2 Si O4",1986,{"id":168,"url":169,"label":170,"formula":165,"spacegroup":154,"year":171},129,"\u002Fcif\u002F129.cif","Finger 1979",1979,{"id":173,"url":174,"label":175,"formula":176,"spacegroup":154,"year":177},130,"\u002Fcif\u002F130.cif","Yagi 1974","(Fe2.001 Si.999) O4",1974,[179,180,181,182],"Ahrensiet","Ahrensitt","IMA2013-028","UM2002-44-SiO:FeMg",[184,188,193,197],{"lang":185,"names":186},"ca",[187],"ahrensita",{"lang":189,"names":190},"de",[191,192],"Ahrensit","IMA 2013-028",{"lang":194,"names":195},"eu",[196],"Ahrensita",{"lang":198,"names":199},"it",[200],"ahrensite","Q19744243",{"history":11,"applications":11}]