Articles | Volume 34, issue 5
Eur. J. Mineral., 34, 451–462, 2022
Eur. J. Mineral., 34, 451–462, 2022
Research article
12 Oct 2022
Research article | 12 Oct 2022

Ferri-taramite, a new member of the amphibole supergroup, from the Jakobsberg Mn–Fe deposit, Värmland, Sweden

Dan Holtstam et al.

Related authors

Zinkgruvanite, Ba4Mn2+4Fe3+2(Si2O7)2(SO4)2O2(OH)2, a new ericssonite-group mineral from the Zinkgruvan Zn-Pb-Ag-Cu deposit, Askersund, Örebro County, Sweden
Fernando Cámara, Dan Holtstam, Nils Jansson, Erik Jonsson, Andreas Karlsson, Jörgen Langhof, Jaroslaw Majka, and Anders Zetterqvist
Eur. J. Mineral., 33, 659–673,,, 2021
Short summary
Adding complexity to the garnet supergroup: monteneveite, Ca3Sb5+2(Fe3+2Fe2+)O12, a new mineral from the Monteneve mine, Bolzano Province, Italy
Andreas Karlsson, Dan Holtstam, Luca Bindi, Paola Bonazzi, and Matthias Konrad-Schmolke
Eur. J. Mineral., 32, 77–87,,, 2020

Related subject area

New minerals and systematic mineralogy
Ferro-ferri-holmquistite, Li2(Fe2+3Fe3+2)Si8O22(OH)2, Fe2+Fe3+ analogue of holmquistite, from the Iwagi islet, Ehime, Japan
Mariko Nagashima, Teruyoshi Imaoka, Takashi Kano, Jun-ichi Kimura, Qing Chang, and Takashi Matsumoto
Eur. J. Mineral., 34, 425–438,,, 2022
Short summary
Tomsquarryite, NaMgAl3(PO4)2(OH)6 8H2O, a new crandallite-derivative mineral from Tom's phosphate quarry, Kapunda, South Australia
Peter Elliott, Ian E. Grey, William G. Mumme, Colin M. MacRae, and Anthony R. Kampf
Eur. J. Mineral., 34, 375–383,,, 2022
Short summary
Graulichite-(La), LaFe3+3(AsO4)2(OH)6, a new addition to the alunite supergroup from the Patte d'Oie mine, Bou Skour mining district, Morocco
Cristian Biagioni, Marco E. Ciriotti, Georges Favreau, Daniela Mauro, and Federica Zaccarini
Eur. J. Mineral., 34, 365–374,,, 2022
Short summary
Arrojadite-group nomenclature: sigismundite reinstated
Frank de Wit and Stuart J. Mills
Eur. J. Mineral., 34, 321–324,,, 2022
Short summary
Redefinition of beraunite, Fe3+6(PO4)4O(OH)4  ⋅  6H2O, and discreditation of the name eleonorite: a re-investigation of type material from the Hrbek Mine (Czech Republic)
Luboš Vrtiška, Jaromír Tvrdý, Jakub Plášil, Jiří Sejkora, Radek Škoda, Nikita V. Chukanov, Andreas Massanek, Jan Filip, Zdeněk Dolníček, and František Veselovský
Eur. J. Mineral., 34, 223–238,,, 2022
Short summary

Cited articles

Björck, L.: Beskrivning till berggrundskartan Filipstad NV, Sver. Geol. Undersök., Swedish Geological Survey, series Af, 147, 1–110, 1986. 
Boström, K., Rydell, H., and Joensuu, O.: Långban – An exhalative sedimentary deposit?, Econ. Geol., 74, 1002–1011,, 1979. 
Burns, R. G.: Mineralogical applications of crystal field theory (No. 5), Cambridge University Press, 551 pp.,, 1993. 
Christy, A. G. and Gatedal, K.: Extremely Pb-rich rock-forming silicates including a beryllian scapolite and associated minerals in a skarn from Långban, Värmland, Sweden. Mineral. Mag., 69, 995–1018,, 2005. 
Compagnoni, R. and Rolfo, F.: Characteristics of UHP pelites, gneisses, and other unusual rocks, Internat. Geol. Rev., 41, 552–570,, 1999. 
Short summary
A new mineral has been discovered, an amphibole, with the name ferri-taramite, which has now been approved by the International Mineralogical Association. The paper discusses the significance of the discovery in relation to other amphiboles found worldwide. This taramite is unique in that it is from a skarn associated with ore and is not of magmatic origin. For the description we have used many methods, including X-ray diffraction, chemical analyses and several types of spectroscopy.