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https://doi.org/10.5194/ejm-37-1-2025
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the Creative Commons Attribution 4.0 License.
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https://doi.org/10.5194/ejm-37-1-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
06 Jan 2025
Research article |
| 06 Jan 2025
| 06 Jan 2025
Insights from the compositional evolution of a multi-coloured, zoned tourmaline from the Cruzeiro pegmatite, Minas Gerais, Brazil
Giovanni B. Andreozzi
CORRESPONDING AUTHOR
Department of Earth Sciences, Sapienza University of Rome, Piazzale Aldo Moro, 5, 00185 Rome, Italy
CNR–IGAG c/o Department of Earth Sciences, Sapienza University of Rome, Piazzale Aldo Moro, 5, 00185 Rome, Italy
Claudia Gori
independent researcher: Largo Gaetano De Sanctis, 7, 00179 Rome, Italy
Henrik Skogby
Department of Geosciences, Swedish Museum of Natural History, P.O. Box 50007, 10405 Stockholm, Sweden
Ulf Hålenius
Department of Geosciences, Swedish Museum of Natural History, P.O. Box 50007, 10405 Stockholm, Sweden
Alessandra Altieri
Department of Earth Sciences, Sapienza University of Rome, Piazzale Aldo Moro, 5, 00185 Rome, Italy
Ferdinando Bosi
Department of Earth Sciences, Sapienza University of Rome, Piazzale Aldo Moro, 5, 00185 Rome, Italy
CNR–IGAG c/o Department of Earth Sciences, Sapienza University of Rome, Piazzale Aldo Moro, 5, 00185 Rome, Italy
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An unusual tourmaline was studied using a multi-analytical approach. The sample comes from a granitic pegmatite on the island of Elba and consists of three generations of tourmaline: green prismatic tourmaline, a dark fibrous cap, and colourless acicular single crystals. The most likely scenario for its formation involves the miarolitic cavity fracturing due to mechanical shock, the subsequent circulation of the highly reactive cavity fluids, and the leaching of accessory biotite in the surrounding pegmatite.
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The discovery of the K-dominant tourmaline maruyamaite with microdiamond inclusions suggested its ultrahigh-pressure formation. We analyzed the role of K in the tourmaline structure, with a special focus on its stability. High pressure is necessary to squeeze the large cation K+ in the stiff framework of tourmaline, although K is the underdog component if Na+ is present in the mineralizing fluid. K-tourmaline is stable at high pressure, overcoming the stereotype of a mere crustal component.
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Giovanni B. Andreozzi, Dario Di Giuseppe, Alessandro F. Gualtieri, Valentina Scognamiglio, Laura Fornasini, Danilo Bersani, Tommaso Giovanardi, Federico Lugli, and Federico Pezzotta
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An unusual tourmaline was studied using a multi-analytical approach. The sample comes from a granitic pegmatite on the island of Elba and consists of three generations of tourmaline: green prismatic tourmaline, a dark fibrous cap, and colourless acicular single crystals. The most likely scenario for its formation involves the miarolitic cavity fracturing due to mechanical shock, the subsequent circulation of the highly reactive cavity fluids, and the leaching of accessory biotite in the surrounding pegmatite.
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Skogbyite, with the chemical formula Zr(Mg2+2Mn3+4)SiO12, is a new species in the braunite group of minerals. It was discovered in a complex mineral assemblage, essentially a very poor manganese ore, from the Långban Fe–Mn oxide deposit, Värmland County, Bergslagen ore province, Sweden. It is named after the Swedish mineralogist Henrik Skogby (b. 1956). It is a new mineral attesting to the localised mobility and reactivity of zirconium under very special geological conditions.
Ferdinando Bosi, Frédéric Hatert, Marco Pasero, and Stuart J. Mills
Eur. J. Mineral., 37, 249–255, https://doi.org/10.5194/ejm-37-249-2025, https://doi.org/10.5194/ejm-37-249-2025, 2025
Dan Holtstam, Fernando Cámara, Henrik Skogby, Andreas Karlsson, and Alessandro De Leo
Eur. J. Mineral., 37, 221–231, https://doi.org/10.5194/ejm-37-221-2025, https://doi.org/10.5194/ejm-37-221-2025, 2025
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Eur. J. Mineral., 35, 1027–1030, https://doi.org/10.5194/ejm-35-1027-2023, https://doi.org/10.5194/ejm-35-1027-2023, 2023
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Ian E. Grey, Stephanie Boer, Colin M. MacRae, Nicholas C. Wilson, William G. Mumme, and Ferdinando Bosi
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The paper describes the formal establishment of the paulkerrite group of minerals and its nomenclature. It includes the application of a site-merging procedure, coupled with a site-total-charge analysis, to obtain unambiguous end-member formulae. Application of the procedure has resulted in the revision of the end-member formulae for several of the group members.
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Elba tourmaline crystals commonly display a sharp transition to dark colors at the analogous termination, but the mechanisms leading to the formation of such terminations are unclear. Here we propose a general genetic model in which, as a consequence of a pocket rupture event, chemical alteration of early formed Fe-/Mn-rich minerals in the enclosing pegmatite was responsible for the release of Fe and/or Mn in the geochemical system, allowing the formation of the late-stage dark terminations.
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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.
Cited articles
Altieri, A., Pezzotta, F., Skogby, H., Hålenius, U., and Bosi, F.: Blue growth zones caused by Fe2+ in tourmaline crystals from the San Piero in Campo gem-bearing pegmatites, Elba Island, Italy, Mineral. Mag., 86, 910–919, https://doi.org/10.1180/mgm.2022.101, 2022.
Andreozzi, G. B., Ottolini, L., Lucchesi, S., Graziani, G., and Russo, U.: Crystal chemistry of the axinite-group minerals: A multi-analytical approach, Am. Mineral., 85, 698–706, https://doi.org/10.2138/am-2000-5-607, 2000.
Andreozzi, G. B., Lucchesi, S., Graziani, G., and Russo, U.: Site distribution of Fe2+ and Fe3+ in the axinite mineral group: New crystal-chemical formula, Am. Mineral., 89, 1763–1771, https://doi.org/10.2138/am-2004-11-1223, 2004.
Andreozzi, G. B., Bosi, F., and Longo, M.: Linking Mössbauer and structural parameters in elbaite-schorl-dravite tourmalines, Am. Mineral., 93, 658–666, 2008.
Berryman, E. J., Wunder, B., Ertl, A., Koch-Müller, M., Rhede, D., Scheidl, K., Giester, G., and Heinrich, W.: Influence of the X-site composition on tourmaline's crystal structure: Investigation of synthetic K-dravite, dravite, oxy-uvite, and magnesio-foitite using SREF and Raman spectroscopy, Phys. Chem. Miner., 43, 83–102, https://doi.org/10.1007/s00269-015-0776-3, 2016.
Bilal, E., César-Mendes, J., Correia-Neves, J. M., and Nasraoui, M.: Chemistry of some pegmatites of São José da Safira area, Minas Gerais, Brazil, Rev. Rom. Mat., 78, 4–6, 1997.
Bilal, E., César-Mendes, J., Correia-Neves, J. M., Nasraoui, M., and Fuzikawa, K.: Chemistry of tourmalines in some pegmatites of São José da Safira area, Minas Gerais, Brazil. J. Geosci., 43, 33–38, 1998.
Bloodaxe, E. S., Hughes J. M., Dyar, M. D., Grew, E. S., and Guidotti, C. V.: Linking structure and chemistry in the Schorl-Dravite series, Am. Min., 84, 922–929, 1999.
Bosi, F.: Bond-valence constraints around the O1 site of tourmaline, Mineral. Mag., 77, 343–351, https://doi.org/10.1180/minmag.2013.077.3.08, 2013.
Bosi, F. and Lucchesi, S.: Crystal chemistry of the schorl-dravite series, Eur. J. Mineral., 16, 335–344, https://doi.org/10.1127/0935-1221/2004/0016-0335, 2004.
Bosi, F. and Lucchesi, S.: Crystal chemical relationships in the tourmaline group: Structural constraints on chemical variability, Am. Mineral., 92, 1054–1063, https://doi.org/10.2138/am.2007.2370, 2007.
Bosi, F., Andreozzi, G. B., Federico, M., Graziani, G., and Lucchesi, S.: Crystal chemistry of the elbaite-schorl series, Am. Mineral., 90, 1784–1792, https://doi.org/10.2138/am.2005.1827, 2005.
Bosi, F., Andreozzi, G. B., Skogby, H., Lussier, A. J., Yassir, A., and Hawthorne, F. C.: Fluor-elbaite, Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3F, a new mineral species of the tourmaline supergroup, Am. Mineral., 98, 297–303, https://doi.org/10.2138/am.2013.4285, 2013.
Bosi, F., Andreozzi, G. B., and Skogby, H.: Experimental evidence for partial Fe2+ disorder at the Y and Z sites of tourmaline: a combined EMP, SREF, MS, IR and OAS study of schorl, Mineral. Mag., 79, 515–528, https://doi.org/10.1180/minmag.2015.079.3.01, 2015.
Bosi, F., Reznitskii, L., Hålenius, U., and Skogby, H.: Crystal chemistry of Al-V-Cr oxy-tourmalines from Sludyanka complex, Lake Baikal, Russia, Eur. J. Mineral., 29, 457–472, https://doi.org/10.1127/ejm/2017/0029-2617, 2017.
Bosi, F., Naitza, S., Skogby, H., Secchi, F., Conte, A. M., Cuccuru, S., Hålenius, U., De La Rosa, N., Kristiansson, P., Nilsson, E. J. C., Ros, L., and Andreozzi, G. B.: Late magmatic controls on the origin of schorlitic and foititic tourmalines from late-Variscan peraluminous granites of the Arbus pluton (SW Sardinia, Italy): Crystal-chemical study and petrological constraints, Lithos, 308–309, 395–411, https://doi.org/10.1016/j.lithos.2018.02.013, 2018.
Boukili, B., Holtz, F., Robert, J. L., and Beny, J. M.: “Fe–F avoidance rule” in ferrous-aluminous (OH,F) biotites, Schweizerische mineralogisch petrographisches Mitteilungen, 82, 549–559, 2002.
Brown, I. D. and Altermatt, D.: Bond-valence parameters obtained from a systematic analysis of the Inorganic Crystal Structure Database, Acta Crystallogr. B, 41, 244–247, 1985.
Buřival, Z. and Novák, M.: Secondary blue tourmaline after garnet from elbaite-subtype pegmatites; implications for source and behavior of Ca and Mg in fluids, J. Geosci., 63, 111–122, https://doi.org/10.3190/jgeosci.257, 2018.
Burnham, C. W.: Magmas and hydrothermal fluids, in: Geochemistry of Hydrothermal Ore Deposits, 2nd Edn., edited by: Barnes, H. L., Wiley-Interscience, New York, 71–136, 1979.
Cámara, F., Ottolini, L., and Hawthorne, F. C.: Crystal chemistry of three tourmalines by SREF, EMPA, and SIMS, Am. Mineral., 87, 1437–1442, https://doi.org/10.2138/am-2002-1021, 2002.
César-Mendes, J.: Mineralogia e gênese dos pegmatitos turmaliníferos da Mina do Cruzeiro, São Josè da Safira, Minas Gerais, PhD Thesis, Univ. São Paulo, São Paulo, Brazil, 1995 (in Portuguese).
Černý, P.: Rare-element granitic pegmatites. part I: Anatomy and internal evolution of pegmatitic deposits, Geosci. Can., 18, 49–67, 1991.
Černý, P. and Ercit, T. S.: The classification of granitic pegmatites revisited, Can. Mineral., 43, 2005–2026, https://doi.org/10.2113/gscanmin.43.6.2005, 2005.
Černý, P., London, D., and Novak, M.: Granitic pegmatites as reflections of their sources, Elements, 8, 289–294, https://doi.org/10.2113/gselements.8.4.289, 2012.
de Mello, F. M. and Bilal, E.: Ages constraints in pegmatite province related to charnockitic host rocks in Minas Gerais, Brazil, Rev. Rom. Mat., 85, 94–98, 2012.
Dutrow, B. L. and Henry, D. J.: Complexly zoned fibrous tourmaline, Cruzeiro mine, Minas Gerais, Brazil: A record of evolving magmatic and hydrothermal fluids, Can. Mineral., 38, 131–143, https://doi.org/10.2113/gscanmin.38.1.131, 2000.
Dutrow, B. L. and Henry, D. J.: Tourmaline: A geologic DVD, Elements, 7, 301–306, https://doi.org/10.2113/gselements.7.5.301, 2011.
Dyar, M. D., Taylor, M. E., Lutz, T. M., Francis, C. A., Guidotti, C. V., and Wise, M.: Inclusive chemical characterization of tourmaline: Mössbauer study of Fe valence and site occupancy, Am. Mineral., 83, 848–864, https://doi.org/10.2138/am-1998-7-817, 1998.
Ertl, A., Schuster, R., Hughes, J. M., Ludwig, T., Meyer, H.-P., Finger, F., Dyar, M. D., Ruschel, K., Rossman, G. R., Klötzli, U., Brandstätter, F., Lengauer, C. L., and Tillmanns, E.: Li-bearing tourmalines in Variscan granitic pegmatites from the Moldanubian nappes, Lower Austria, Eur. J. Mineral., 24, 695–715, https://doi.org/10.1127/0935-1221/2012/0024-2203, 2012.
Ertl, A., Kolitsch, U., Dyar, M. D., Meyer, H.-P., Henry, D. J., Rossman, G.R., Prem, M., Ludwig, T., Nasdala, L., Lengauer, C. L., Tillmanns, E., and Niedermayr, G.: Fluor-schorl, a new member of the tourmaline supergroup, and new data on schorl from the cotype localities, Eur. J. Mineral., 28, 163–177, https://doi.org/10.1127/ejm/2015/0027-2501, 2016.
Federico, M., Andreozzi, G. B., Lucchesi, S., Graziani, G., and Cesar-Mendes, J.: Crystal chemistry of tourmalines. I. Chemistry, compositional variations and coupled substitutions in the pegmatite dikes of the Cruzeiro mine, Minas Gerais, Brazil, Can. Mineral., 36, 415–431, 1998.
Fehér, B. and Zajzon, N.: Tourmalines of the Velence Granite Formation and the surrounding contact slate, Velence Mountains, Hungary, Central European Geology, 64, 38–58, https://doi.org/10.1556/24.2021.00005, 2021.
Fuge, R.: On the behavior of fluorine and chlorine during magmatic differentiation, Contrib. Mineral. Petr., 61, 245–249, 1977.
Gatta, G. D., Danisi, R. M., Adamo, I., Meven, M., and Diella, V.: A single-crystal neutron and X-ray diffraction study of elbaite, Phys. Chem. Miner., 39, 577–588, https://doi.org/10.1007/s00269-012-0513-0, 2012.
Gebert, W. and Zemann, J.: Messung des Ultrarot-Pleochroismus von Mineralen II. Der Pleochroismus der OH-Streckfrequenz in Turmalin, Neues Jb. Miner. Monat., 8, 232–235, https://doi.org/10.1007/BF01081565, 1965.
Gonzalez-Carreño, T., Fernandez, M., and Sanz, J.: Infrared and electron microprobe analysis in tourmalines, Phys. Chem. Miner., 15, 452–460, https://doi.org/10.1007/BF00311124, 1988.
Grice, J. D. and Ercit, T. S.: Ordering of Fe and Mg in the tourmaline crystal structure: the correct formula, Neues Jb. Miner. Abh., 165, 245–266, 1993.
Gysi, A. P. and Williams-Jones, A. E.: Hydrothermal mobilization of pegmatite-hosted REE and Zr at Strange Lake, Canada: a reaction path model, Geochim. Cosmochim. Ac., 122, 324–352, https://doi.org/10.1016/j.gca.2013.08.031, 2013.
Hards, N. J.: Distribution of elements between the fluid phase and silicate melt phase of granites and nepheline syenites, Progress in experimental petrology, Nat. Env. Res. Council Publ. Ser., 3, 88–90, 1976.
Henry, D. J. and Dutrow, B. L.: The incorporation of fluorine in tourmaline: Internal crystallographic controls or external environmental influences?, Can. Mineral., 49, 41–56, https://doi.org/10.3749/canmin.49.1.41, 2011.
Henry, D. J., Novák, M., Hawthorne, F. C., Ertl, A., Dutrow, B., Uher, P., and Pezzotta, F.: Nomenclature of the tourmaline supergroup minerals, Am. Mineral., 96, 895–913, https://doi.org/10.2138/am.2011.3636, 2011.
Krivovichev, S.: Structural complexity of minerals: Information storage and processing in the mineral world, Mineral. Mag., 77, 275–326, https://doi.org/10.1180/minmag.2013.077.3.05, 2013.
Jolliff, B. L., Papike, J. J., and Shearer, C. K.: Tourmaline as a recorder of pegmatite evolution: Bob Ingersoll Pegmatite, Black Hills, South Dakota, Am. Mineral., 71, 472–500, 1986.
Lagarec, K. and Rancourt, D. G.: RECOIL. Mössbauer spectral analysis software for Windows, version 1.0, Department of Physics, University of Ottawa, Canada, 1998.
Lima, J. L., Scholz, R., Lana, C., Queiroga, G., and de Castro, M. P.: Mica and tourmaline geochemistry of pegmatites from Conselheiro Pena Pegmatite District, Minas Gerais, Brazil: Implications for pegmatite genesis and economic potential, Geochem. J., 53, 151–170, https://doi.org/10.2343/geochemj.2.0556, 2019.
Linnen, R. L., Van Lichtervelde, M., and Cerný, P.: Granitic pegmatites as sources of strategic metals, Elements, 8, 275–280, https://doi.org/10.2113/gselements.8.4.275, 2012.
London, D.: Granitic pegmatites: an assessment of current concepts and directions for the future, Lithos, 80, 281–303, https://doi.org/10.1016/j.lithos.2004.02.009, 2005.
London, D.: A petrologic assessment of internal zonation in granitic pegmatites, Lithos, 74–104, https://doi.org/10.1016/j.lithos.2013.10.025, 2014.
London, D.: Ore-forming processes within granitic pegmatites, Ore Geol. Rev., 101, 349–383, https://doi.org/10.1016/j.oregeorev.2018.04.020, 2018.
Lussier, A. J. and Hawthorne, F. C.: Oscillatory zoned liddicoatite from Anjanabonoina, central Madagascar. II. Compositional variation and mechanisms of substitution, Can. Mineral., 49, 89–104, https://doi.org/10.3749/2200026, 2011.
Lussier, A. J., Abdu, Y., Hawthorne, F. C., Michaelis, V. K., Aguiar, P. M., and Kroeker, S.: Oscillatory zoned liddicoatite from Anjanabonoina, central Madagascar. I. Crystal chemistry and structure by SREF and 11B and 27Al MAS NMR spectroscopy, Can. Mineral., 49, 63–88, https://doi.org/10.3749/canmin.49.1.63, 2011.
Manning, D. A. C.: The effect of fluorine on liquidus phase relationships in the system Qz-Ab-Or with excess water at 1 Kb, Contrib. Mineral. Petr., 76, 206–215, 1981.
Martin, R. F. and De Vito, C.: The patterns of enrichment in felsic pegmatites ultimately depend on tectonic setting, Can. Mineral., 43, 2027–2048, 2005.
Mattson, S. M. and Rossman, G. R.: Fe2+-Fe3+ interactions in tourmaline, Phys. Chem. Miner., 14, 163–171, https://doi.org/10.2113/gscanmin.43.6.2027, 1987.
Novák, M., Škoda, R., Gadas, P., Krmíček, L., and Černý, P.: Contrasting origins of the mixed (NYF + LCT) signature in granitic pegmatites, with examples from the Moldanubian Zone, Czech Republic, Can. Mineral., 50, 1077–1094, https://doi.org/10.3749/canmin.50.4.1077, 2012.
Pouchou, J. L. and Pichoir, F.: Quantitative analysis of homogeneous or stratified microvolumes applying the model “PAP”, in: Heinrich, K. F. J. and Newbury, D. E., Electron Probe Quantitation, Plenum, New York, 31–75, https://doi.org/10.1007/978-1-4899-2617-3_4, 1991.
Roda-Robles, E., Pesquera, A., Gil, P. P., Torres-Ruiz, J., and Fontan, F.: Tourmaline from the rare-element Pinilla pegmatite, (Central Iberian Zone, Zamora, Spain): chemical variation and implications for pegmatitic evolution, Mineral. Petr., 81, 249–263, https://doi.org/10.1007/s00710-004-0042-8, 2004.
Rosenberg, P. E. and Foit Jr., F. F.: Fe2+-F avoidance in silicates, Geochim. Cosmochim. Ac., 41, 345–346, 1977.
Shaw, R. A., Goodenough, K. M., Roberts, N. M. W., Horstwood, M. S. A., Chenery, S. R., and Gunn, A. G.: Petrogenesis of rare-metal pegmatites in high-grade metamorphic terranes: a case study from the Lewisian Gneiss Complex of north-west Scotland, Precambrian Res., 281, 338–362, https://doi.org/10.1016/j.precamres.2016.06.008, 2016.
Shen, G., Lu, Q., and Xu, J.: Fluorannite: A new mineral of the mica group from the western suburb of Suzhou City, Ac. Petrol. Mineral., 19, 355–362, 2000 (in Chinese, English absract).
Simmons, W. B. and Webber, K. L.: Pegmatite genesis: state of the art, Eur. J. Mineral. 20, 421–438, https://doi.org/10.1127/0935-1221/2008/0020-1833, 2008.
Skogby, H., Bosi, F., and Lazor, P.: Short-range order in tourmaline: a vibrational spectroscopic approach to elbaite, Phys. Chem. Miner., 39, 811–816, https://doi.org/10.1007/s00269-012-0536-6, 2012.
Sheldrick, G. M.: Crystal structure refinement with SHELXL, Acta Crystallogr. C, 71, 3==8, 2015.
Tindle, A. G., Breaks, F. W., and Selway, J. B.: Tourmaline in petalite-subtype granitic pegmatites: evidence of fractionation and contamination from the Pakeagama Lake and Separation Lake areas of northwestern Ontario, Canada, Can. Mineral., 40, 753–788, https://doi.org/10.2113/gscanmin.40.3.753, 2002.
Tindle, A. G., Selway, J. B., and Breaks, F. W.: Liddicoatite and associated species from the McCombe spodumene-subtype rare-element granitic pegmatite, northwestern Ontario, Canada, Can. Mineral., 43, 769–793, https://doi.org/10.2113/gscanmin.43.2.769, 2005.
van Hinsberg, V. J., Henry, D. J., and Dutrow, B. L.: Tourmaline as a petrologic forensic mineral: A unique recorder of its geologic past, Elements, 7, 327–332, https://doi.org/10.2113/gselements.7.5.327, 2011.
Wadoski, E. R., Grew, E. S., and Yates, M. G.: Compositional evolution of tourmaline-supergroup minerals from granitic pegmatites in the Larsemann Hills, East Antarctica, Can. Mineral., 49, 381–405, https://doi.org/10.3749/canmin.49.1.381, 2011.
Watenphul, A., Burgdorf, M., Schlüter, J., Horn, I., Malcherek, T., and Mihailova, B.: Exploring the potential of Raman spectroscopy for crystallochemical analyses of complex hydrous silicates: II. Tourmalines, Am. Mineral., 101, 970–985, https://doi.org/10.2138/am-2016-5530, 2016.
Wright, S. E., Foley, J. A., and Hughes, J. M.: Optimization of site occupancies in minerals using quadratic programming, Am. Mineral., 85, 524–531, https://doi.org/10.2138/am-2000-0414, 2000.
Short summary
The compositional variation in a multi-coloured, zoned tourmaline from the Cruzeiro pegmatite, Brazil, reflects melt chemical evolution during the entire pegmatite differentiation. In uncontaminated granitic pegmatite systems such as that of Cruzeiro, the compositional evolution of tourmaline progresses from schorl to fluor-elbaite, rather than directly from schorl to elbaite, to reflect co-enrichment in Li and F during fractional crystallization.
The compositional variation in a multi-coloured, zoned tourmaline from the Cruzeiro pegmatite,...
