[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:1936":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":11,"ima_formula":15,"elements":16,"sigelements":22,"key_elements":23,"impurities":24,"cim":25,"ima_status":26,"ima_notes":11,"ima_history":11,"approval_year":11,"publication_year":29,"discovery_year":30,"strunz10ed1":31,"strunz10ed2":32,"strunz10ed3":19,"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":47,"berror":48,"cerror":49,"alphaerror":11,"betaerror":49,"gammaerror":11,"va3":50,"z":51,"csmetamict":13,"commentcrystal":52,"twinning":11,"tranglide":11,"parting":11,"epitaxidescription":11,"morphology":53,"tlform":54,"hmin":55,"hmax":55,"hardtype":11,"vhnmin":45,"vhnmax":45,"vhnerror":11,"vhng":11,"vhns":11,"commenthard":56,"dmeas":57,"dmeas2":57,"dcalc":58,"dmeaserror":11,"dcalcerror":11,"commentdense":11,"lustre":11,"lustretype":59,"commentluster":11,"diapheny":60,"streak":61,"colour":62,"commentcolor":11,"colors":63,"streak_colors":67,"luminescence":11,"uv":68,"cleavage":11,"cleavagetype":11,"fracturetype":11,"tenacity":11,"commentbreak":69,"opticaltype":70,"opticalsign":71,"opticalalpha":72,"opticalalpha2":73,"opticalalphaerror":11,"opticalbeta":74,"opticalbeta2":75,"opticalbetaerror":11,"opticalgamma":76,"opticalgamma2":45,"opticalgammaerror":11,"opticalomega":45,"opticalomega2":45,"opticalomegaerror":11,"opticalepsilon":45,"opticalepsilon2":45,"opticalepsilonerror":11,"opticaln":45,"opticaln2":45,"opticalnerror":11,"optical2vcalc":77,"optical2vcalc2":45,"optical2vcalcerror":11,"optical2vmeasured":78,"optical2vmeasured2":79,"optical2vmeasurederror":11,"rimin":80,"rimax":81,"opticaldispersion":82,"opticalpleochroism":11,"opticalpleochorismdesc":11,"opticalbirefringence":11,"opticalcomments":11,"opticalcolour":11,"opticalinternal":11,"opticaltropic":11,"opticalanisotropism":11,"opticalbireflectance":11,"opticalextinction":83,"opticalr":11,"specdispm":11,"ir":84,"electrical":11,"magnetism":11,"thermalbehaviour":85,"other":86,"industrial":11,"occurrence":87,"otheroccurrence":88,"type_specimen_store":89,"description_short":90,"aboutname":91,"rock_parent":11,"rock_parent2":11,"rock_root":9,"rock_bgs_code":11,"meteoritical_code":11,"updttime":92,"reviewed_at":11,"variety_of":11,"varieties":93,"group_members":94,"associates":95,"confused_with":150,"type_localities":151,"occurrence_total":158,"citations":159,"images":233,"structures":325,"synonyms":336,"language_names":345,"wikidata_qid":400,"texts":401},1936,"1:1:1936:7","b2a0bbe6-6ad7-4434-9a42-73c10b2d6c1a","Howlite","How",0,"mineral",null,784,false,"Ca\u003Csub>2\u003C\u002Fsub>B\u003Csub>5\u003C\u002Fsub>SiO\u003Csub>9\u003C\u002Fsub>(OH)\u003Csub>5\u003C\u002Fsub>","Ca\u003Csub>2\u003C\u002Fsub>SiB\u003Csub>5\u003C\u002Fsub>O\u003Csub>9\u003C\u002Fsub>(OH)\u003Csub>5\u003C\u002Fsub>",[17,18,19,20,21],"Ca","Si","B","O","H",[17,18,19,20,21],[19],",Na,K,,","17.5.12",[27,28],"APPROVED","GRANDFATHERED",1868,"1868","6","C","20","25","3","5","1","Monoclinic",5,14,"P21\u002Fc ","12.820","9.351","8.608","0","104.84",3,1,2,997.5,4,"Cell data from Griffen (1988).","Flattened prismatic with pointed terminations.  Elongated on [010] or [001].\r\n\r\nCompact nodular masses, internally dense and structureless. Chalk-like, earthy, scaly, slaty structured.","Nodules embedded in anhydrite or gypsum.",6.5,"crystals 6.5; massive 3.5","2.62","2.61","Sub-Vitreous","Transparent","White","White, colorless, brown",[64,65,66],"white","colorless","brown",[64],"May fluoresce orange or bluish white with SW or LW.","Even and smooth in porcelaneous types.","Biaxial","-","1.583","1.586","1.596","1.598","1.6","88","60","90",1.583,1.6,"none","X = b; Z ∧ c ≃ 51°.","Piskanya material [cm\u003Csup>-1\u003C\u002Fsup>]: 3460, 3492, 3404, 3212, 1455, 1435, 1410, 1379w, 1359, 1324, 1223, 1163, 1136, 1104, 1055sh, 1014s, 959s, 915s, 906s, 875, 831s, 761, 775, 750w, 707w, 682, 617, 595, 563w, 551w, 527, 511w, 466, 451","Before the blowpipe, decrepitates strongly, and fuses readily to a clear colourless bead, making the inner flame green.  In a closed tube it decrepitates and gives much water.","Readily soluble in dilute acids. Gelatinous silica results from the reaction upon evaporation.  A minute quantity with a drop of dilute HCl gives the boracic-acid test with tumeric paper.","Gypsum and anhydrite deposit.","In borate deposits. The common associates include those at Piskanya deposit (studenitsite is not a common species)","No designated type material.","Usually compact earthy masses and very rarely in crystals. The earthy material gives a \"hardness\" of 3.5 but this is just the hardness of separating the grains. The crystals give a hardness of 6.5 (see: http:\u002F\u002Fwww.mindat.org\u002Fmesg-7-226293.html)","First described as silicoborocalcite by Henry How (11 July 1828, London, England - 28 September 1879, Windsor, Nova Scotia) chemist, geologist, and mineralogist.  Professor of Natural History and Chemistry at King's College, Windsor, Nova Scotia, Canada. Renamed shortly afterwards to howlite by James Dwight Dana.","2025-08-11 12:14:20",[],[],[96,106,115,123,133,142],{"id":97,"name":98,"entrytype":9,"csystem":99,"ima_formula":100,"mindat_formula":101,"hmin":47,"hmax":102,"dmeas":103,"dcalc":104,"primary_image_id":105},234,"Anhydrite","Orthorhombic","Ca(SO\u003Csub>4\u003C\u002Fsub>)","CaSO\u003Csub>4\u003C\u002Fsub>",3.5,"2.98","2.95",1438,{"id":107,"name":108,"entrytype":9,"csystem":38,"ima_formula":109,"mindat_formula":110,"hmin":111,"hmax":111,"dmeas":112,"dcalc":113,"primary_image_id":114},1108,"Colemanite","CaB\u003Csub>3\u003C\u002Fsub>O\u003Csub>4\u003C\u002Fsub>(OH)\u003Csub>3\u003C\u002Fsub> · H\u003Csub>2\u003C\u002Fsub>O","Ca[B\u003Csub>3\u003C\u002Fsub>O\u003Csub>4\u003C\u002Fsub>(OH)\u003Csub>3\u003C\u002Fsub>]·H\u003Csub>2\u003C\u002Fsub>O",4.5,"2.423","2.422",29510,{"id":116,"name":117,"entrytype":9,"csystem":38,"ima_formula":118,"mindat_formula":119,"hmin":49,"hmax":49,"dmeas":120,"dcalc":121,"primary_image_id":122},1784,"Gypsum","Ca(SO\u003Csub>4\u003C\u002Fsub>) · 2H\u003Csub>2\u003C\u002Fsub>O","CaSO\u003Csub>4\u003C\u002Fsub>·2H\u003Csub>2\u003C\u002Fsub>O","2.312","2.308",10652,{"id":124,"name":125,"entrytype":9,"csystem":38,"ima_formula":126,"mindat_formula":127,"hmin":128,"hmax":129,"dmeas":130,"dcalc":131,"primary_image_id":132},3814,"Studenitsite","NaCa\u003Csub>2\u003C\u002Fsub>B\u003Csub>9\u003C\u002Fsub>O\u003Csub>14\u003C\u002Fsub>(OH)\u003Csub>4\u003C\u002Fsub> · 2H\u003Csub>2\u003C\u002Fsub>O","NaCa\u003Csub>2\u003C\u002Fsub>[B\u003Csub>9\u003C\u002Fsub>O\u003Csub>14\u003C\u002Fsub>(OH)\u003Csub>4\u003C\u002Fsub>]·2H\u003Csub>2\u003C\u002Fsub>O",5.5,6,"2.29","2.34",23135,{"id":134,"name":135,"entrytype":9,"csystem":136,"ima_formula":137,"mindat_formula":138,"hmin":139,"hmax":139,"dmeas":140,"dcalc":140,"primary_image_id":141},4085,"Ulexite","Triclinic","NaCaB\u003Csub>5\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>(OH)\u003Csub>6\u003C\u002Fsub> · 5H\u003Csub>2\u003C\u002Fsub>O","NaCa[B\u003Csub>5\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>(OH)\u003Csub>6\u003C\u002Fsub>]·5H\u003Csub>2\u003C\u002Fsub>O",2.5,"1.955",24874,{"id":143,"name":144,"entrytype":9,"csystem":38,"ima_formula":145,"mindat_formula":146,"hmin":49,"hmax":49,"dmeas":147,"dcalc":148,"primary_image_id":149},4166,"Veatchite","Sr\u003Csub>2\u003C\u002Fsub>B\u003Csub>11\u003C\u002Fsub>O\u003Csub>16\u003C\u002Fsub>(OH)\u003Csub>5\u003C\u002Fsub> · H\u003Csub>2\u003C\u002Fsub>O","Sr\u003Csub>2\u003C\u002Fsub>B\u003Csub>11\u003C\u002Fsub>O\u003Csub>16\u003C\u002Fsub>(OH)\u003Csub>5\u003C\u002Fsub>·H\u003Csub>2\u003C\u002Fsub>O","2.58","2.59",27355,[],[152],{"id":153,"txt":154,"latitude":155,"longitude":156,"country":157},523,"Black's quarry, Windsor, Hants Co., Nova Scotia, Canada",44.9583333,-64.1416667,"Canada",28,[160,163,166,170,174,179,183,187,192,196,200,204,208,212,216,220,224,228],{"id":161,"year":29,"html":162,"doi":11},1118643,"Dana, James D., Brush, George Jarvis (1868) \u003Ci>A System of Mineralogy\u003C\u002Fi> (5th ed.). p.882",{"id":164,"year":29,"html":165,"doi":11},15935695,"How, H. (1868) Contributions to the mineralogy of Nova Scotia. III. Borates and other minerals in anhydrite and gypsum. Silicoborocalcite, a new mineral. Philosophical Magazine 35, (4th Ser.): 32-41: 218.",{"id":167,"year":168,"html":169,"doi":11},16112178,1871,"How, H. (1871) Contributions to the Mineralogy of Nova Scotia. VI. Winkworthite, a New Mineralfrom the Gypsum of Hants County. Philosophical Magazine and Journal of Science: 41: 270. (as Winkworthite).",{"id":171,"year":172,"html":173,"doi":11},16112179,1887,"Penfield, S.L., Sperry, E.S. (1887) On the chemical composition of howlite, with a note on the Gooch method for the determination of boracic acid. American Journal of Science: 134: 220-223.",{"id":175,"year":176,"html":177,"doi":178},4685,1903,"Giles, W. B. (1903) Bakerite (a new borosilicate of calcium) and howlite from California. \u003Ci>Mineralogical Magazine and Journal of the Mineralogical Society\u003C\u002Fi>,  13 (62) 353-355 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002Fminmag.1903.013.62.12'>doi:10.1180\u002Fminmag.1903.013.62.12\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002FMinMag\u002FVolume_13\u002F13-62-353.pdf' class='refpdflink'>\u003C\u002Fa>","10.1180\u002Fminmag.1903.013.62.12",{"id":180,"year":181,"html":182,"doi":11},16112181,1911,"Eakle, A.S. (1911) Neocolemanite, a variety of colemanite, and howlite from Lang, Los Angeles County, California. University of California Geology Department, Bulletin 6: 179.",{"id":184,"year":185,"html":186,"doi":11},522942,1957,"Murdoch, Joseph (1957) Crystallography and x-ray measurements of howlite from California. \u003Ci>American Mineralogist\u003C\u002Fi>,  42 (7-8) 521-524 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM42\u002FAM42_521.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":188,"year":189,"html":190,"doi":191},5728094,1969,"Finney, J. J., Kumbasar, Isik, Clark, Joan R. (1969) Crystal structure of howlite, Ca\u003Csub>2\u003C\u002Fsub>SiB\u003Csub>5\u003C\u002Fsub>O\u003Csub>9\u003C\u002Fsub>(OH)\u003Csub>5\u003C\u002Fsub>. \u003Ci>Die Naturwissenschaften\u003C\u002Fi>,  56 (1) 33-34 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1007\u002Fbf00599589'>doi:10.1007\u002Fbf00599589\u003C\u002Fa>","10.1007\u002Fbf00599589",{"id":193,"year":194,"html":195,"doi":11},525386,1970,"Finney, J. J., Kumbasar, Isik, Konnert, Judith A., Clark, Joan R. (1970) Crystal structure of the calcium silicoborate howlite. \u003Ci>American Mineralogist\u003C\u002Fi>,  55 (5-6) 716-728 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM55\u002FAM55_716.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":197,"year":198,"html":199,"doi":11},16126705,1975,"Papezik, V. S., Fong, C. C. K. (1975) Howlite and ulexite from the Carboniferous gypsum and anhydrite beds in western Newfoundland. \u003Ci>The Canadian Mineralogist\u003C\u002Fi>,  13 (4) 370-376 \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002Fcm\u002Fvol14\u002FCM14_393.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":201,"year":202,"html":203,"doi":11},16112185,1976,"Papezik, V.S., Fong, C.C.K (1976) Howlite and ulexite from carboniferous gypsum and anhydrite beds in western Newfoundland — addendum. The Canadian Mineralogist: 14: 393-393.",{"id":205,"year":206,"html":207,"doi":11},528540,1988,"Griffen, Dana T. (1988) Howlite, Ca\u003Csub>2\u003C\u002Fsub>SiB\u003Csub>5\u003C\u002Fsub>O\u003Csub>9\u003C\u002Fsub>(OH)\u003Csub>5\u003C\u002Fsub>: Structure refinement and hydrogen bonding. \u003Ci>American Mineralogist\u003C\u002Fi>,  73 (9-10) 1138-1144 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM73\u002FAM73_1138.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":209,"year":210,"html":211,"doi":11},16112186,1993,"Joyce, D.K. Gait, R.I., Sturman, B.D. (1993) Howlite from Iona, Nova Scotia Short paper presented at the Rochester Mineralogical Symposium, Rochester, New York, 1993.",{"id":213,"year":214,"html":215,"doi":11},15418311,1996,"Grew, Edward S.; Anovitz, Lawrence M. - \u003Ci>Eds.\u003C\u002Fi> (1996) Boron - Mineralogy, Petrology and Geochemistry. \u003Ci>Reviews in Mineralogy\u003C\u002Fi> Vol. 33. Mineralogical Society of America p.862",{"id":217,"year":218,"html":219,"doi":11},16964894,2001,"(2001) Howlite. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002Fhowlite.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":221,"year":222,"html":223,"doi":11},16112187,2005,"Ramik, R.A. (2005) Lost and Found: one of Canada's earliest type mineral localities. The 32nd Rochester Mineralogical Symposium, Program and abstracts, Rochester, New York, April 14-17, 2005.",{"id":225,"year":222,"html":226,"doi":227},64184,"Grice, J. D., Gault, R. A., Van Velthuizen, J. (2005) Borate minerals of the Penobsquis and Millstream deposits, southern New Brunswick, Canada. \u003Ci>The Canadian Mineralogist\u003C\u002Fi>,  43 (5) 1469-1487 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2113\u002Fgscanmin.43.5.1469'>doi:10.2113\u002Fgscanmin.43.5.1469\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002Fcm\u002Fvol43\u002FCM43_1469.pdf' class='refpdflink'>\u003C\u002Fa>","10.2113\u002Fgscanmin.43.5.1469",{"id":229,"year":230,"html":231,"doi":232},1119395,2014,"Chukanov, Nikita V. (2014) \u003Ci>Springer Geochemistry\u002FMineralogy\u003C\u002Fi> - Infrared spectra of mineral species. Springer Netherlands. \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1007\u002F978-94-007-7128-4'>doi:10.1007\u002F978-94-007-7128-4\u003C\u002Fa>","10.1007\u002F978-94-007-7128-4",[234,244,254,264,273,283,291,300,308,316],{"id":235,"source_url":236,"license_code":237,"credit_html":238,"title":239,"description":240,"author":241,"original_width":242,"original_height":243},59639,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=40180634","CC BY-SA 4.0","DonGuennie (G-Empire The World Of Gems), via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=40180634\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Howlith-G-EmpireTheWorldOfGems.jpg","Howlith als Schmuckstein, 96ct, Cabochonschliff, oval.","DonGuennie (G-Empire The World Of Gems)",650,450,{"id":245,"source_url":246,"license_code":247,"credit_html":248,"title":249,"description":250,"author":251,"original_width":252,"original_height":253},59646,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=118201774","CC BY-SA 2.0","Pacific Museum of Earth from Canada, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=118201774\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Howlite (48002878862).jpg","\u003Cp>Wentworth\n\u003C\u002Fp>\nNova Scotia, Canada","Pacific Museum of Earth from Canada",4000,6000,{"id":255,"source_url":256,"license_code":257,"credit_html":258,"title":259,"description":260,"author":261,"original_width":262,"original_height":263},11658,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=2985618","CC BY 3.0","Ra'ike (see also: de:Benutzer:Ra'ike), via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=2985618\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Howlite - tumble polished stone.jpg","Howlite - tumble polished stone","Ra'ike (see also: de:Benutzer:Ra'ike)",1757,1256,{"id":265,"source_url":266,"license_code":267,"credit_html":268,"title":269,"description":270,"author":11,"original_width":271,"original_height":272},11659,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=6969795","Public domain","Unknown author, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=6969795\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Howlite-BYU.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FHowlite\" class=\"extiw\" title=\"en:Howlite\">Howlite\u003C\u002Fa>. Collected 1984, Tick Canyon, So. Calif. Mineral collection of Brigham Young University Department of Geology, Provo, Utah. Photograph by Andrew Silver. BYU index 4-2019.",1400,1050,{"id":274,"source_url":275,"license_code":276,"credit_html":277,"title":278,"description":279,"author":280,"original_width":281,"original_height":282},11660,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10141066","CC BY-SA 3.0","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10141066\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Howlite-122859.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FHowlite\" class=\"extiw\" title=\"en:Howlite\">Howlite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Wentworth area, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FHants_County,_Nova_Scotia\" class=\"extiw\" title=\"en:Hants County, Nova Scotia\">Hants County\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNova_Scotia\" class=\"extiw\" title=\"en:Nova Scotia\">Nova Scotia\u003C\u002Fa>, Canada (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-19462.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 4.1 x 2.5 x 2.5 cm.\u003C\u002Fdd>\n\u003Cdd>A nodule of howlite, (Calcium Boro-silicate Hydroxide), from Nova Scotia, where the first specimens were described (it is named for its discoverer Henry How, a Nova Scotia geologist). Howlite is probably best known (unfortunately) for being dyed to very closely resemble turquoise, which often fools the unwary. However, here we have the color as it should be, in an unusually fine nodule complete all around. This specimen was in the Carlton Davis collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Robert M. Lavinsky",600,445,{"id":284,"source_url":285,"license_code":276,"credit_html":286,"title":287,"description":288,"author":280,"original_width":289,"original_height":290},11661,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=11296102","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=11296102\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Howlite-299765.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FHowlite\" class=\"extiw\" title=\"en:Howlite\">Howlite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Bras D'Or Lake, Iona, Cape Breton Island, Victoria County, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNova_Scotia\" class=\"extiw\" title=\"en:Nova Scotia\">Nova Scotia\u003C\u002Fa>, Canada (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-19462.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 3.5 x 3.3 x 2.6 cm\u003C\u002Fdd>\n\u003Cdd>Howlite is a rare borate found in gypsum and anhydrite deposits. This very fine 1.6 cm wide spray of lustrous, translucent, grayish-brown howlite prisms is attractively set on matrix of massive anhydrite and is from Cape Breton Island, Nova Scotia. The howlite Type Locality is also in Nova Scotia and near Windsor. Seldom available material.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",465,429,{"id":292,"source_url":293,"license_code":237,"credit_html":294,"title":295,"description":296,"author":297,"original_width":298,"original_height":299},11662,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=13297460","Didier Descouens, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=13297460\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Howlite - turkenite.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FHowlite\" class=\"extiw\" title=\"en:Howlite\">Howlite\u003C\u002Fa> artificially colored in blue, and sold under the name turquenite.\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Tick Canyon, Lang, Los Angeles Co., California, USA.\u003C\u002Fdd>\n\u003Cdd>Size : 7.27  x 3.9  x  1.0  cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Didier Descouens",4719,2850,{"id":301,"source_url":302,"license_code":237,"credit_html":303,"title":304,"description":305,"author":306,"original_width":252,"original_height":307},11663,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=64739091","Mahdikarimi70, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=64739091\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","هائولیت-Howlite.jpg","Howlite, a calcium borosilicate hydroxide (Ca2B5SiO9(OH)5), is a borate mineral found in evaporite deposits.","Mahdikarimi70",2664,{"id":309,"source_url":310,"license_code":237,"credit_html":311,"title":312,"description":313,"author":314,"original_width":315,"original_height":315},11664,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=75929131","Maatpublishing, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=75929131\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","WhiteHowlite.jpg","White Howlite stone","Maatpublishing",2026,{"id":317,"source_url":318,"license_code":319,"credit_html":320,"title":321,"description":322,"author":323,"original_width":324,"original_height":324},11665,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=103516380","CC BY 4.0","AlexeiAVA, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=103516380\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Howlite sphere.jpg","Howlite ball","AlexeiAVA",2250,[326,332],{"id":327,"url":328,"label":329,"formula":330,"spacegroup":331,"year":206},6312,"\u002Fcif\u002F6312.cif","Griffen 1988","Ca2 Si B5 O14 H5","P 1 21\u002Fc 1",{"id":333,"url":334,"label":335,"formula":330,"spacegroup":331,"year":194},6313,"\u002Fcif\u002F6313.cif","Finney 1970",[337,338,339,340,341,342,343,344],"Howelite","Khaulit","Khaulita","Khaulite","Silicoborocalcit","Silicoborocalcita","Silicoborocalcite","Winkworthite",[346,350,354,358,361,364,368,372,376,381,385,388,392,396],{"lang":347,"names":348},"ca",[349],"howlita",{"lang":351,"names":352},"de",[353],"Howlith",{"lang":355,"names":356},"es",[357],"Howlita",{"lang":359,"names":360},"eu",[357],{"lang":362,"names":363},"fr",[7],{"lang":365,"names":366},"it",[367],"howlite",{"lang":369,"names":370},"ja",[371],"ハウライト",{"lang":373,"names":374},"nl",[375],"howliet",{"lang":377,"names":378},"pl",[379,380],"Howlit","Turkmenit",{"lang":382,"names":383},"ru",[384],"Говлит",{"lang":386,"names":387},"sk",[379],{"lang":389,"names":390},"uk",[391],"Гауліт",{"lang":393,"names":394},"zh",[395],"羟硅硼钙石",{"lang":397,"names":398},"zh-hant",[399],"白紋石","Q421527",{"history":11,"applications":11}]