[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:2524":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":16,"ima_formula":15,"elements":17,"sigelements":24,"key_elements":11,"impurities":25,"cim":26,"ima_status":27,"ima_notes":29,"ima_history":31,"approval_year":32,"publication_year":33,"discovery_year":11,"strunz10ed1":34,"strunz10ed2":35,"strunz10ed3":36,"strunz10ed4":37,"dana8ed1":38,"dana8ed2":38,"dana8ed3":38,"dana8ed4":38,"csystem":39,"cclass":40,"spacegroup":41,"spacegroupset":42,"a":43,"b":44,"c":45,"alpha":38,"beta":46,"gamma":38,"aerror":47,"berror":41,"cerror":48,"alphaerror":11,"betaerror":49,"gammaerror":11,"va3":11,"z":50,"csmetamict":14,"commentcrystal":51,"twinning":11,"tranglide":11,"parting":11,"epitaxidescription":11,"morphology":11,"tlform":52,"hmin":40,"hmax":49,"hardtype":11,"vhnmin":38,"vhnmax":38,"vhnerror":11,"vhng":11,"vhns":11,"commenthard":11,"dmeas":38,"dmeas2":38,"dcalc":53,"dmeaserror":11,"dcalcerror":11,"commentdense":11,"lustre":54,"lustretype":54,"commentluster":11,"diapheny":11,"streak":55,"colour":56,"commentcolor":11,"colors":57,"streak_colors":62,"luminescence":64,"uv":11,"cleavage":65,"cleavagetype":66,"fracturetype":11,"tenacity":11,"commentbreak":11,"opticaltype":67,"opticalsign":68,"opticalalpha":69,"opticalalpha2":70,"opticalalphaerror":11,"opticalbeta":71,"opticalbeta2":72,"opticalbetaerror":11,"opticalgamma":73,"opticalgamma2":74,"opticalgammaerror":11,"opticalomega":38,"opticalomega2":38,"opticalomegaerror":11,"opticalepsilon":38,"opticalepsilon2":38,"opticalepsilonerror":11,"opticaln":38,"opticaln2":38,"opticalnerror":11,"optical2vcalc":75,"optical2vcalc2":76,"optical2vcalcerror":11,"optical2vmeasured":77,"optical2vmeasured2":78,"optical2vmeasurederror":11,"rimin":79,"rimax":80,"opticaldispersion":81,"opticalpleochroism":82,"opticalpleochorismdesc":83,"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":84,"otheroccurrence":11,"type_specimen_store":85,"description_short":86,"aboutname":87,"rock_parent":11,"rock_parent2":11,"rock_root":9,"rock_bgs_code":11,"meteoritical_code":11,"updttime":88,"reviewed_at":11,"variety_of":11,"varieties":89,"group_members":90,"associates":117,"confused_with":118,"type_localities":119,"occurrence_total":126,"citations":127,"images":166,"structures":202,"synonyms":210,"language_names":216,"wikidata_qid":243,"texts":244},2524,"1:1:2524:5","63e73a76-3ac9-417e-b94e-cb4373aa3077","Magnesio-hornblende","Mhbl",0,"mineral",null,8789,1299,false,"◻Ca\u003Csub>2\u003C\u002Fsub>(Mg\u003Csub>4\u003C\u002Fsub>Al)(Si\u003Csub>7\u003C\u002Fsub>Al)O\u003Csub>22\u003C\u002Fsub>(OH)\u003Csub>2\u003C\u002Fsub>","Defined as a an amphibole in the magnesiohornblende group of the Calcium subgroup with Mg>Fe\u003Csup>2+\u003C\u002Fsup> and Al>Fe\u003Csup>3+\u003C\u002Fsup> in the C position and with (OH) as the dominant anion in the W position.",[18,19,20,21,22,23],"Al","Ca","Mg","Si","O","H",[18,19,20,21,22,23],",Ti,Mn,Na,K,Cl,H2O,","16.23.6",[28],"APPROVED",[30],"REDEFINED","Approved as a valid species by IMA in 1978, as magnesio-hornblende. Redefined by IMA in 2012, special procedure.\r\nDefinition of type specimen and locality (IMA No. 2017-059) with the sand dunes of Lüderitz (Namibia) as type locality.",2017,2018,"9","D","E","10","0","Monoclinic",5,11,"C2\u002Fm ","9.8307","18.0659","5.2968","104.771",7,4,6,2,"Unit-cell parameters from the IMA approval of 2017.","holotype specimen is a friable block of subhedral to anhedral magnesio hornblende crystals up to a few millimeters. "," 3.137","Vitreous","Pale grey-green, grey-white","Medium green to dark green to green-black to black, brown",[58,59,60,61],"green","black","brown","gray",[61,58,63],"white","Nonfluorescent","on {110}","Perfect","Biaxial","-","1.616","1.68","1.626","1.695","1.636","1.7","58","88","66","85",1.616,1.7,"r > v or r \u003C v","Visible","(X – pale yellow \u003C Y – bluish green \u003C Z – dark green","Sand dunes","Collections of the Museo di Mineralogia, Sistema Museale di Ateneo, University of Pavia, Italy, catalogue number 2017-01","Amphibole Supergroup. Calcium Amphibole Subgroup. \r\n\r\nForms a series with ferro-hornblende.\r\nMay also grade into tremolite or actinolite.","For its high magnesium content, indicating Mg\u003Csup>2+\u003C\u002Fsup> as a dominant cation and relationship with hornblende. The latter name hornblende was first used by 1789 by Abraham Gottlieb Werner from an old German term for dark minerals with no ore value and from \"blende\", meaning to deceive in allusion to it occurring in ore deposits but not yielding any metal. ","2025-08-11 12:14:21",[],[91,98,104,110],{"id":92,"name":93,"entrytype":9,"csystem":39,"ima_formula":94,"mindat_formula":95,"hmin":11,"hmax":11,"dmeas":96,"dcalc":97,"primary_image_id":11},43379,"Ferro-ferri-hornblende","◻Ca\u003Csub>2\u003C\u002Fsub>(Fe\u003Csup>2+\u003C\u002Fsup>\u003Csub>4\u003C\u002Fsub>Fe\u003Csup>3+\u003C\u002Fsup>)(Si\u003Csub>7\u003C\u002Fsub>Al)O\u003Csub>22\u003C\u002Fsub>(OH)\u003Csub>2\u003C\u002Fsub>","◻Ca\u003Csub>2\u003C\u002Fsub>(Fe\u003Csup>2+\u003C\u002Fsup>\u003Csub>4\u003C\u002Fsub>Fe\u003Csup>3+\u003C\u002Fsup>)(AlSi\u003Csub>7\u003C\u002Fsub>O\u003Csub>22\u003C\u002Fsub>)(OH)\u003Csub>2\u003C\u002Fsub>","3.362","3.35",{"id":99,"name":100,"entrytype":9,"csystem":39,"ima_formula":101,"mindat_formula":101,"hmin":40,"hmax":49,"dmeas":102,"dcalc":38,"primary_image_id":103},1519,"Ferro-hornblende","◻Ca\u003Csub>2\u003C\u002Fsub>(Fe\u003Csup>2+\u003C\u002Fsup>\u003Csub>4\u003C\u002Fsub>Al)(Si\u003Csub>7\u003C\u002Fsub>Al)O\u003Csub>22\u003C\u002Fsub>(OH)\u003Csub>2\u003C\u002Fsub>","3.12",8734,{"id":105,"name":106,"entrytype":9,"csystem":39,"ima_formula":107,"mindat_formula":108,"hmin":11,"hmax":11,"dmeas":11,"dcalc":109,"primary_image_id":11},43393,"Magnesio-ferri-fluoro-hornblende","◻Ca\u003Csub>2\u003C\u002Fsub>(Mg\u003Csub>4\u003C\u002Fsub>Fe\u003Csup>3+\u003C\u002Fsup>)(Si\u003Csub>7\u003C\u002Fsub>Al)O\u003Csub>22\u003C\u002Fsub>F\u003Csub>2\u003C\u002Fsub>","◻Ca\u003Csub>2\u003C\u002Fsub>(Mg\u003Csub>4\u003C\u002Fsub>Fe\u003Csup>3+\u003C\u002Fsup>)(AlSi\u003Csub>7\u003C\u002Fsub>O\u003Csub>22\u003C\u002Fsub>)F\u003Csub>2\u003C\u002Fsub>","3.315",{"id":111,"name":112,"entrytype":9,"csystem":39,"ima_formula":113,"mindat_formula":114,"hmin":40,"hmax":11,"dmeas":115,"dcalc":116,"primary_image_id":11},43378,"Magnesio-ferri-hornblende","Ca\u003Csub>2\u003C\u002Fsub>(Mg\u003Csub>4\u003C\u002Fsub>Fe\u003Csup>3+\u003C\u002Fsup>)[(Si\u003Csub>7\u003C\u002Fsub>Al)O\u003Csub>22\u003C\u002Fsub>](OH)\u003Csub>2\u003C\u002Fsub>","◻Ca\u003Csub>2\u003C\u002Fsub>(Mg\u003Csub>4\u003C\u002Fsub>Fe\u003Csup>3+\u003C\u002Fsup>)[(Si\u003Csub>7\u003C\u002Fsub>Al)O\u003Csub>22\u003C\u002Fsub>](OH)\u003Csub>2\u003C\u002Fsub>","3.275","3.204",[],[],[120],{"id":121,"txt":122,"latitude":123,"longitude":124,"country":125},297005,"Sand dunes of Lüderitz, Lüderitz, ǃNamiǂNûs Constituency, ǁKaras Region, Namibia",-26.6477778,15.1577778,"Namibia",265,[128,132,136,140,145,149,154,158,162],{"id":129,"year":130,"html":131,"doi":11},16109265,1981,"Spear, F.S. (1981) An experimental study of hornblende stability and compositional variability in amphibolite. American Journal of Science: 281: 697-734.",{"id":133,"year":134,"html":135,"doi":11},528750,1989,"Makino, Kuniaki, Tomita, Katsutoshi (1989) Cation distribution in the octahedral sites of hornblendes. \u003Ci>American Mineralogist\u003C\u002Fi>,  74 (9-10) 1097-1105 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM74\u002FAM74_1097.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":137,"year":138,"html":139,"doi":11},12909050,1998,"Mandarino, Joseph A. (1998) The Second List of Additions and Corrections to the Glossary of Mineral Species (1995) - The Amphibole Group. \u003Ci>The Mineralogical Record\u003C\u002Fi>, 29 (3) 169-174",{"id":141,"year":142,"html":143,"doi":144},64226,2006,"Hawthorne, F. C., Oberti, R. (2006) On the classification of amphiboles. \u003Ci>The Canadian Mineralogist\u003C\u002Fi>,  44 (1) 1-21 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2113\u002Fgscanmin.44.1.1'>doi:10.2113\u002Fgscanmin.44.1.1\u003C\u002Fa>","10.2113\u002Fgscanmin.44.1.1",{"id":146,"year":142,"html":147,"doi":148},395524,"Ishida, K. (2006) Assignment of infrared OH-stretching bands in calcic amphiboles through deuteration and heat treatment. \u003Ci>American Mineralogist\u003C\u002Fi>,  91 (5) 871-879 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2138\u002Fam.2006.1774'>doi:10.2138\u002Fam.2006.1774\u003C\u002Fa>","10.2138\u002Fam.2006.1774",{"id":150,"year":151,"html":152,"doi":153},396910,2012,"Hawthorne, F. C., Oberti, R., Harlow, G. E., Maresch, W. V., Martin, R. F., Schumacher, J. C., Welch, M. D. (2012) Nomenclature of the amphibole supergroup. \u003Ci>American Mineralogist\u003C\u002Fi>,  97 (11) 2031-2048 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2138\u002Fam.2012.4276'>doi:10.2138\u002Fam.2012.4276\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Frruff_1.0\u002Fuploads\u002FAM97_2031.pdf' class='refpdflink'>\u003C\u002Fa>","10.2138\u002Fam.2012.4276",{"id":155,"year":32,"html":156,"doi":157},244950,"Hålenius, U., Hatert, F., Pasero, M., Mills, S. J. (2017) New minerals and nomenclature modifications approved in 2017, CNMNC Newsletter No 39. \u003Ci>Mineralogical Magazine\u003C\u002Fi>,  81 (5) 1279-1286 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002Fminmag.2017.081.072'>doi:10.1180\u002Fminmag.2017.081.072\u003C\u002Fa>","10.1180\u002Fminmag.2017.081.072",{"id":159,"year":33,"html":160,"doi":161},245097,"Oberti, Roberta, Boiocchi, Massimo, Hawthorne, Frank C., Ciriotti, Marco E. (2018) Magnesio-hornblende from Lüderitz, Namibia: mineral description and crystal chemistry. \u003Ci>Mineralogical Magazine\u003C\u002Fi>,  82 (6) 1253-1259 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002Fminmag.2017.081.093'>doi:10.1180\u002Fminmag.2017.081.093\u003C\u002Fa>","10.1180\u002Fminmag.2017.081.093",{"id":163,"year":164,"html":165,"doi":11},16965717,2020,"(2020) Magnesio-hornblende. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002FMagnesio-hornblende.pdf' class='refpdflink'>\u003C\u002Fa>",[167,177,186,195],{"id":168,"source_url":169,"license_code":170,"credit_html":171,"title":172,"description":173,"author":174,"original_width":175,"original_height":176},15021,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=24500567","CC BY-SA 3.0","Pumber, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=24500567\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Magneziohornblende.JPG","Magneziohornblende.","Pumber",2560,1920,{"id":178,"source_url":179,"license_code":180,"credit_html":181,"title":182,"description":183,"author":184,"original_width":185,"original_height":185},15018,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=1956132","Public domain","Dave Dyet http:\u002F\u002Fwww.shutterstone.com http:\u002F\u002Fwww.dyet.com, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=1956132\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Magnesiohornblende Basic calcium magnesium iron aluminum silicate-fluoride Nickenicher,Sattel,Eifel,Germany 2886.jpg","These mineral images are free to use how you wish.","Dave Dyet http:\u002F\u002Fwww.shutterstone.com http:\u002F\u002Fwww.dyet.com",700,{"id":187,"source_url":188,"license_code":170,"credit_html":189,"title":190,"description":191,"author":192,"original_width":193,"original_height":194},15023,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=60361450","Creator:Robert Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=60361450\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Magnesio-hornblende.png","Magnesio-hornblende from Burk's Falls highway roadcuts, Armour Township, Parry Sound District, Ontario, Canada.\nAn impressive columnar cluster with striking opposing crystals of magnesio-hornblende crystals is perched on matrix on this aesthetic large specimen from the Robert Nowakowski Collection. The sharply terminated, highly lustrous jet-black parallel-growth crystals, to 6.0 cm, are starkly contrasted by the melted-look quartz crystals below.","Creator:Robert Lavinsky",958,833,{"id":196,"source_url":197,"license_code":170,"credit_html":198,"title":199,"description":191,"author":192,"original_width":200,"original_height":201},15024,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=74129420","Creator:Robert Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=74129420\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Magnesio-hornblende (cropped).png",739,750,[203],{"id":204,"url":205,"label":206,"formula":207,"spacegroup":208,"year":209},8204,"\u002Fcif\u002F8204.cif","Oberti 1995","Na.28 K.13 Fe1.63 Mg3.14 Al1.33 Ti.15 Ca1.81 Mn.02 Si6.92 H1.953 O23.953 F.047","C 1 2\u002Fm 1",1995,[211,212,213,214,215],"Actinolitic hornblende","Alumino-magnesio-hornblende","IMA2017-059","Magnesio-hoornblende","Tremolitic hornblende",[217,221,226,229,233,239],{"lang":218,"names":219},"ca",[220],"magnesiohornblenda",{"lang":222,"names":223},"de",[224,225],"IMA 2017-059","Magnesio-Hornblende",{"lang":227,"names":228},"eu",[7],{"lang":230,"names":231},"hu",[232],"magneziohornblende",{"lang":234,"names":235},"it",[236,237,238],"magnesio-hornblende","magnesio-orneblenda","magnesiohornblende",{"lang":240,"names":241},"sr",[242],"магнезиохорнбленда","Q3843295",{"history":11,"applications":11}]