b'\n_START_ARTICLE_\nJoesmithita\n_START_SECTION_\nCaracter\xc3\xadstiques\n_START_PARAGRAPH_\nLa joesmithita \xc3\xa9s un inosilicat de f\xc3\xb3rmula qu\xc3\xadmica {Pb}{Ca\xe2\x82\x82}{Mg\xe2\x82\x83Fe\xe2\x82\x82\xc2\xb3\xe2\x81\xba}(Be\xe2\x82\x82Si\xe2\x82\x86O\xe2\x82\x82\xe2\x82\x82)(OH)\xe2\x82\x82. Cristal\xc2\xb7litza en el sistema monocl\xc3\xadnic. La seva duresa a l\'escala de Mohs \xc3\xa9s 5,5._NEWLINE_Segons la classificaci\xc3\xb3 de Nickel-Strunz, la joesmithita pertany a "09.DE - Inosilicats amb 2 cadenes dobles peri\xc3\xb2diques, Si\xe2\x82\x84O\xe2\x82\x81\xe2\x82\x81; clinoamf\xc3\xadbols" juntament amb els seg\xc3\xbcents minerals: antofil\xc2\xb7lita, cummingtonita, clinoholmquistita, grunerita, manganocummingtonita, manganogrunerita, permanganogrunerita, ferrofluoropedrizita, ferrifluoroleake\xc3\xafta, actinolita, ferritschermakita, ferroactinolita, ferrohornblenda, ferrotschermakita, magnesiohornblenda, tremolita, tschermakita, cannillo\xc3\xafta, fluorcannillo\xc3\xafta, parvomanganotremolita, fluorotremolita, potassicfluoropargasita, edenita, ferroedenita, ferrokaersutita, ferropargasita, hastingsita, kaersutita, magnesiohastingsita, pargasita, sadanaga\xc3\xafta, fluoroedenita, potassicferroferrisadanaga\xc3\xafta, potassicsadanaga\xc3\xafta, potassicpargasita, potassicferrosadanaga\xc3\xafta, magnesiofluorohastingsita, potassicfluorohastingsita, potassicclorohastingsita, fluoropargasita, parvomanganoedenita, potassiccloropargasita, potassicferrocloroedenita, potassicmagnesiohastingsita, potassicferropargasita, cromiopargasita, ferro-taramita, barroisita, ferroferribarroisita, ferroferriwinchita, ferribarroisita, ferroferritaramita, ferroferrikatophorita, ferrobarroisita, ferrorichterita, ferrowinchita, ferrokatophorita, ferritaramita, magnesiotaramita, richterita, winchita, taramita, fluororichterita, katophorita, potassicfluororichterita, potassicrichterita, ferrighose\xc3\xafta, ferriwinchita, fluorotaramita, arfvedsonita, eckermannita, ferroeckermannita, ferroglaucofana, glaucofana, potassicmanganileake\xc3\xafta, manganoarfvedsonita, ferrileake\xc3\xafta, magnesioriebeckita, magnesioarfvedsonita, nybo\xc3\xafta, riebeckita, manganomanganiungaretti\xc3\xafta, ferroferrinybo\xc3\xafta, clinoferroferriholmquistita, ferrinybo\xc3\xafta, ferroferrileake\xc3\xafta, ferroferrifluoroleake\xc3\xafta, sodicferriclinoferroholmquistita, magnesiofluoroarfvedsonita, ferripedrizita, potassicferrileake\xc3\xafta, fluoronybo\xc3\xafta, manganidellaventura\xc3\xafta, fluoropedrizita, potassicarfvedsonita, ferrioberti\xc3\xafta, potassicmagnesiofluoroarfvedsonita, ferroferripedrizita, potassicmagnesioarfvedsonita, pedrizita, ferropedrizita, fluoroleake\xc3\xafta i ferroferrioberti\xc3\xafta.\n_START_SECTION_\nFormaci\xc3\xb3 i jaciments\n_START_PARAGRAPH_\nVa ser descoberta l\'any 1968 a L\xc3\xa5ngban, una zona minera que es troba al municipi de Filipstad, a la prov\xc3\xadncia sueca de V\xc3\xa4rmland, l\'\xc3\xbanic indret on ha estat trobada aquesta esp\xc3\xa8cie mineral. Sol trobar-se associada a altres minerals com: hematites, magnetita, aegirina, quars, barita i calcita.'