 | | Journal (article/letter/editorial) | | Universytetskaya Naberezhnaya 7/9, 199034 St Petersburg, Russia, catalogue number 1/19518 How to cite: Galuskina...volcanic caldera, Kabardino-Balkaria, North Caucasus, Russia (43Âș17âN 43Âș6âE) E.V. Galuskin*, I.O. Galuskina...Fissure, Tolbachik volcano, Kamchatka Peninsula, Russia Stanislav K. Filatov, Lidiya P. Vergasova, Oleg...St Petersburg State University, St Petersburg, Russia, specimen number 1/19526 How to cite: Filatov,...volcano, Kamchatka Peninsula, Kamchatka Oblastâ, FarEastern Region, Russia (55Âș41âN 160Âș14âE) Igor V. Pekov* |  | | Book | | Actinolite Actinolite Vyuntspakhk Crimea Sarbaiskii mine Sarbay deposit, Rudnyi Sarbay deposit, Rudnyi Sarbay...quarry Stephanitovaya vein, Sarbay quarry Sarbaiskii mine Stephanitovaya vein, Sarbay quarry Sarbay deposit...Khani River Komatiitovyi stream Kurzhunkul'skii mine Maidantai North Urals Pervomaiskii quarry Pogdornoye... S. Siberia, Russia E. Transbaikalia, S. Siberia, Russia Aldan shield, Siberia, Russia Aldan shield,...Siberia, Russia Ukraine Primor'ie Aldan shield, Siberia, Russia Aldan shield, Siberia, Russia Karamazar |  | Garofalo, P., AudĂ©tat, A., GĂŒnther, D., Heinrich, C. A., Ridley, J. (2000) Estimation and testing of standard molar thermodynamic properties of tourmaline end-members using data of natural samples. American Mineralogist, 85 (1) 78-88 doi:10.2138/am-2000-0109 | Journal (article/letter/editorial) | | calorimetric data for a natural Mg-rich tourmaline and dumortierite, a structurally similar borosilicate, to estimate...of five tourmaline end-members (dravite, schorl, alkali-free dravite, aluminofoitite, and ferrifoitite)...enthalpy and entropy, and reactions involving dumortierite to estimate the heat-capacity functions. This...have been formulated that involve a natural dumortierite, a B silicate structurally analogous to tourmaline...Australia). CRYSTAL CHEMISTRY OF TOURMALINE AND DUMORTIERITE The generalized structural formula of tourmaline |  | Pieczka, A., Grew, E. S., Groat, L. A., Evans, R. J. (2011) Holtite and dumortierite from the Szklary Pegmatite, Lower Silesia, Poland. Mineralogical Magazine, 75 (2) 303-315 doi:10.1180/minmag.2011.075.2.303 | Journal (article/letter/editorial) | | April 2011, Vol. 75(2), pp. 303â315 Holtite and dumortierite from the Szklary Pegmatite, Lower Silesia, Poland...Mg and Ti. Holtite and the As- and Sb-bearing dumortierite, which in places overgrows the youngest Nb-bearing...Sb-bearing, (Ta,Nb,Ti)-poor dumortierite ? As- and Sb-dominant, (Ta,Nb,Ti)-free dumortierite-like mineral (16.81...or Al5&2B(Sb,As)3O12(OH)3, belonging to the dumortierite group. The Szklary holtite shows no evidence...As)-rich holtite; (2) dumortierite and the unnamed (As+Sb)-dominant dumortierite-like mineral; and (3) |  | Hemingway, Bruch S., Evans, H.T. (1996) Thermal expansion of some borate and borosilicate minerals (fluoborite, danburite, sinhalite, datolite, elbaite, dravite, kornerupine, dumortierite, ferro-axinite, and manganaxinite) between 25 and about 1200 degrees C. Open-File Report Vol. 1996 (96-100) US Geological Survey doi:10.3133/ofr96100 | Report (issue) | | danburite, sinhalite, datolite, elbaite, dravite, kornerupine, dumortierite, ferro-axinite, and manganaxinite)...and space group R3ttl. A large single crystal of dravite (ideal formula, NaMg3Al6 (BO3 ) 3Si6O18 (OH) 4...inclusions of other phases were present in the dravite of all size fractions. Several inclusion-free fragments...from the 10-28 mesh fraction. The unit cell for dravite was refined at 25°C by Evans using the Guinier-Hagg...7261(7)A, V = 1482.3(2) A3 , and space group Cmcm. Dumortierite (ideal formula, Si3B[Al675 no 250,725(0^075]) |  | | Journal (article/letter/editorial) | | to youngest, generation I (tourmaline), II (dumortierite + tourmaline), and III (tourmaline) veins. Alkali-...planes of these folds. Long axes of fibrous dumortierite and prismatic tourmaline of generation II veins...End-members: Schorl Dravite Olenite Uvite âHydroxy-feruviteâ Foitite Magnesiofoitite Cr-dravite (X) Na Na Na...âOxy-schorlâ Na Fe22+Al Al6 Si6O18 (BO3)3 (OH)3 (O) âOxy-draviteâ Na Mg2Al Al6 Si6O18 (BO3)3 (OH)3 (O) âOxy-uviteâ...predicted from fluid inclusion data from the Jaduguda mine area that lies to the west of the Rakha-Kanyaluka |  | Bosi, Ferdinando, Pezzotta, Federico, Skogby, Henrik, Altieri, Alessandra, HĂ„lenius, Ulf, Tempesta, Gioacchino, CempĂrek, Jan (2022) Princivalleite, Na(Mn2Al)Al6(Si6O18)(BO3)3(OH)3O, a new mineral species of the tourmaline supergroup from Veddasca Valley, Varese, Italy. Mineralogical Magazine, 86 (1) 78-86 doi:10.1180/mgm.2022.3 | Journal (article/letter/editorial) | | sample (Fig. 1) and samples from Uvildy, Chelyabinsk region, Russia, and PikĂĄrec, Czech Republic (CempĂrek...diamond represent princivalleite samples from Uvildy (Russia) and PikĂĄrec (Czech Republic), respectively; black...Valley, Varese, Lombardy, Italy; Uvildy, Chelyabinsk region, Russia; and PikĂĄrec, Czech Republic. Prn-V7...(2016) Thermal stability of extended clusters in dravite: a combined EMP, SREF and FTIR study. Physics and...oxy-tourmalines from Sludyanka complex, Lake Baikal, Russia. European Journal of Mineralogy, 29, 457â472. Bosi |  | | Journal (article/letter/editorial) | | recognized: Alkali-free dravite, âB-nephelineâ, boromuscovite, danburite, dravite, dumortierite, jeremejevite-OH...minerals dravite (Schreyer, 1985) and magnesiodumortierite (Chopin et al., 1995) were found. Dravite, the...accordance with its relatively low water contents dumortierite remains stable up to rather high temperatures...and 850-900°C the solid breakdown products of dumortierite are boron-free phases (kyanite and corundum)...phase. High-pressure experiments showed that dumortierite containing [BO,]-groups remains stable up to |  | | Journal (article/letter/editorial) | | encompassing different minerals. Flexible white dravite ïŹbers form around euhedral quartz crystals. In...ïŹuor-elbaite on elbaite. Sample locality: Pederneira Mine, Minas Gerais, Brazil. (d) Tourmaline ïŹbers as ïŹbrous...within the elbaite host. Sample locality: Cruzeiro Mine, Minas Gerais, Brazil. either as hair-like curved...MORPHOLOGY Species Alkali group schorl oxy-schorl dravite oxy-dravite elbaite fluor-elbaite X-site vacant group...mineral compositions and tourmaline data (schorlâdravite solid solution) estimated using the oxide-sum approach |  | Galliski, M. A., Marquez-Zavalia, M. F., Lira, R., Cempirek, J., Skoda, R. (2012) Mineralogy and Origin of the Dumortierite-Bearing Pegmatites of Virorco, San Luis, Argentina. The Canadian Mineralogist, 50 (4) 873-894 doi:10.3749/canmin.50.4.873 | Journal (article/letter/editorial) | | 3749/canmin.50.4.873 MINERALOGY AND ORIGIN OF THE DUMORTIERITE-BEARING PEGMATITES OF VIRORCO, SAN LUIS, ARGENTINA...37 Brno, Czech Republic Abstract The Virorco dumortierite-bearing pegmatite dikes, in Sierra de San Luis...albite, oligoclase, tourmaline-supergroup and dumortierite-group minerals, muscovite and kyanite as the...in the different pegmatitic zones, ranging from dravite-rich compositions to rossmanite, passing through...Mn-rich elbaite. At least four generations of the dumortieriteâholtite minerals are texturally and compositionally |  | Wunder, Bernd, Kutzschbach, Martin, Hosse, Luisa, Wilke, Franziska D.H., Schertl, Hans-Peter, Chopin, Christian (2018) Synthetic [4]B-bearing dumortierite and natural [4]B-free magnesiodumortierite from the Dora-Maira Massif: differences in boron coordination in response to ultrahigh pressure. European Journal of Mineralogy, 30 (3) 471-483 doi:10.1127/ejm/2018/0030-2742 | Journal (article/letter/editorial) | | principles and applications Synthetic [4]B-bearing dumortierite and natural [4]B-free magnesiodumortierite from...Research University, 75005 Paris, France Abstract: Dumortierite was synthesized in piston-cylinder experiments...silicon-deïŹciency relative to the ideal anhydrous dumortierite stoichiometry Al7BSi3O18. The EMP data in conjunction...â [4]B ĂŸ H. The Raman spectrum of synthetic dumortierite in the frequency region 2000â4000 cm1 comprises...Contrary to the synthetic high-pressure ABSH-dumortierite, magnesiodumortierite from the Dora-Maira Massif |  | | Report (volume) | | and temperatures estimated for formation of dumortierite, grandidierite, and kornerupine Chapter 9. Table...system AI2O3-B2O3-SĂO2-H2O "Boron-mullites" Dumortierite Alkali-free Al-tourmaline The system Mg0-Al...Magnesiodumortierite Alkali-free dravite Complex tourmalines Dravite Uvite Elbaite Highly aluminous tourmalines...feldspars 374 Tourmaline stability in magmas: Dravite 376 Tourmaline stability in magmas: Quartz-tourmaline...assemblages 376 Tourmaline stability in magmas: Schorl-dravite 377 Acknowledgments 379 References 379 Chapter | | | Report (volume) | | and temperatures estimated for formation of dumortierite, grandidierite, and kornerupine Chapter 9. Table...eset, SMe o>. Tourmaline stability in magmas: Dravite...................:cceeeeeeeeeeees Tourmaline stability...assemblages...... Tourmaline stability in magmas: Schorl-dravite ..................2..0008 Bare MOW COPIES oa. tunics...pentaborate sheet structure from the Tuzla salt mine, Bosnia and Hercegovina. Am Mineral 79:562-569 Beukes...Mineralogy and paragenesis of the Little Three mine pegmatites, Ramona District, San Diego County, California |  | | Journal (article/letter/editorial) | | B-rich phases, including tourmaline (schorl â dravite â foitite solid solutions), prismatine, grandidierite...grandidierite, werdingite, boralsilite and dumortierite. Tourmaline can be used to gain information about the...600°C at ~3 kbar for secondary tourmaline and dumortierite, conditions consistent with the presence of...secondary andalusite. Keywords: schorl, dravite, foitite, dumortierite, grandidierite, tourmaline, granitic...schorl â dravite â foĂŻtite), prismatine, grandidierite, werdingite, boralsilite et dumortierite. On se |  | Pieczka, A., Evans, R. J., Grew, E. S., Groat, L. A., Ma, C., Rossman, G. R. (2013) The dumortierite supergroup. II. Three new minerals from the Szklary pegmatite, SW Poland: Nioboholtite, (Nb0.6âĄ0.4)Al6BSi3O18, titanoholtite, (Ti0.75âĄ0.25)Al6BSi3O18, and szklaryite, âĄAl6BAs3+3O15. Mineralogical Magazine, 77 (6) 2841-2856 doi:10.1180/minmag.2013.077.6.10 | Journal (article/letter/editorial) | | August 2013, Vol. 77(6), pp. 2841â2856 The dumortierite supergroup. II. Three new minerals from the...Christy] ABSTRACT Three new minerals in the dumortierite supergroup were discovered in the Szklary pegmatite...a patch ~2 mm in size in As- and Sb- bearing dumortierite enclosed in quartz. Titanoholtite crystallized...three minerals are presumably isostructural with dumortierite, that is, orthorhombic symmetry, space group...patterns calculated from the cell parameters of dumortierite of Moore and Araki (1978) and the empirical |  | | Journal (article/letter/editorial) | | (2000) COMPLEXLY ZONED FIBROUS TOURMALINE, CRUZEIRO MINE, MINAS GERAIS, BRAZIL: A RECORD OF EVOLVING MAGMATIC...with a deep pink elbaite host from the Cruzeiro mine, Minas Gerais, Brazil, provide evidence for the...dissolution, foitite, elbaite, fluids, Cruzeiro mine, Minas Gerais, Brazil. SOMMAIRE Des gĂ©nĂ©rations...intercroissance avec une elbaĂŻte rose foncĂ©, provenant de la mine Cruzeiro, province de Minas Gerais, au BrĂ©sil, permettent...fibreuse, dissolution, foĂŻtite, elbaĂŻte, fluides, mine Cruzeiro, Minas Gerais, BrĂ©sil. E-mail address: |  | BaÄĂk, Peter, Ertl, Andreas, Ć tevko, Martin, Giester, Gerald, SeÄkĂĄr, Peter (2015) ACICULAR ZONED TOURMALINE (MAGNESIO-FOITITE TO FOITITE) FROM A QUARTZ VEIN NEAR TISOVEC, SLOVAKIA: THE RELATIONSHIP BETWEEN CRYSTAL CHEMISTRY AND ACICULAR HABIT. The Canadian Mineralogist, 53 (2) 221-234 doi:10.3749/canmin.1400085 | Journal (article/letter/editorial) | | substitution is dominant in the transition from oxy-dravite to magnesio-foitite, and the Alâ»(Fe,Mg)â1Naâ1 substitution... members of the supergroup, such as schorl or dravite. It usually forms volumetrically small zones in...crystals or overgrowths on earlier proton-deficient dravite (Rosenberg & Foit 2006). Similarly, at Detva-Biely...deposit in Brazil has a range of compositions from dravite to uvite to magnesio-foitite (Modreski et al. 1997)...described fibrous zoned tourmaline associated with dumortierite in altered volcanic rocks at Jack Creek, Montana |  | | Journal (article/letter/editorial) | | 2004, 16, 323-333 Schorlâoxy-schorl to draviteâoxy-dravite tourmaline from granitic pegmatites; examples...the oxy-subgroup â common oxy-schorl, minor oxy-dravite and rare oxy-foitite are more abundant relative...Key-words: tourmaline, schorl, oxy-schorl, dravite, oxy-dravite, oxy-foitite, wet-chemical analyses, substitution...Republic. Introduction Tourmaline of the schorl-dravite solid-solution series is a common mineral in peraluminous...Manning, 1995). Chemical compositions of schorl-dravite from barren to complex pegmatites were studied |  | | Journal (article/letter/editorial) | | °C, however never as a single phase product; dumortierite with either quartz or with jeremejeviteOH were...or in their metamorphic equivalents such as dumortierite quartzites. An unusually Al-rich, complex tourmaline...end-member dravite by the vector AlNa-1Mg -1, a more specific name, âalkali-free draviteâ, was subsequently...X-site vacant: NaMg 3Al6[Si6O18] (BO3)3(OH)4 Dravite (Mg2Al)Al6[Si6O18] (BO3)3(OH)4 Magnesiofoitite...synthetic Al-tourmaline as analyzed here (Table 4). Dumortierite solid solution after Werding & Schreyer (1990) |  | | Book | | and varied colours oftsavorite, tanzanite and dravite are related to trace quantities of vanadium, the...sapphire,scapolite,spinal,tanzanite, âąâą tourmaline{dravite),tremolite,tsavorite, wurtzite,zoisite. (cp': ...tsavorite, cut from rough found at the mine in 1 983. Scorpion mine, Tsavo National Park, Voi, Taita-TavetaCounty...Kimwarer mine. The country also exploits deposits of ilmenite, rutile and zircon from the Kwale mine. Gold...ruby and sapphire, spinel and tourmaline, notably dravite. Tanzanite accounts for the bulk of income generated |  | Grew, E. S., Graetsch, H. A., Poter, B., Yates, M. G., Buick, I., Bernhardt, H.-J., Schreyer, W., Werding, G., Carson, C. J., Clarke, G. L. (2008) Boralsilite, Al16B6Si2O37, and "boron-mullite:" Compositional variations and associated phases in experiment and nature. American Mineralogist, 93 (2) 283-299 doi:10.2138/am.2008.2571 | Journal (article/letter/editorial) | | was also synthesized at 450 °C, 10 kbar with dumortierite and the OH analogue of jeremejevite. An orthorhombic...(except Ca) in these four borosilicates and dumortierite. The spot size for all elements ranged from...MgOAl2O3-B2O3-SiO2-H2O system (Werding and Schreyer 1984) and dumortierite in the Al2O3-B2O3-SiO2-H2O system (Werding and...critical peaks are obscured by the reflections from dumortierite and the OHanalogue of jeremejevite. Electron-microprobe...Al18B4O33; Bor = boralsilite; Crn = corundum; Dum = dumortierite; Jer = OH analogue of jeremejevite; no id = |  | Bailey, David G., Lupulescu, Marian V., Darling, Robert S., Singer, Jared W., Chamberlain, Steven C. (2019) A Review of Boron-Bearing Minerals (Excluding Tourmaline) in the Adirondack Region of New York State. Minerals, 9 (10) 644 doi:10.3390/min9100644 | Journal (article/letter/editorial) | | Province; boron minerals; danburite; datolite; dumortierite; grandidierite; harkerite; kornerupine; prismatine;... The spot size was 80 ”m square, except for dumortierite, which utilized a 30 ”m circle. Background acquisition...were used as reference glasses. For datolite, dumortierite, prismatine, and serendibite, Si and Al were...5 6 7 Valentine Mine Old Van Buskirk Farm Downing Farm/Hickory Lake Woodcock Mine McLear Pegmatite Schroon...Schroon Lake Dumortierite AlAl6 BSi3 O18 DU-1 8 DU-2 DU-3 9 10 Batchellerville Pegmatite Benson |  | | Journal (article/letter/editorial) | | in these two major deposits all belong to the dravite â schorl series, and tend to be Mg-rich where closely...greenstone belt ( f 1 km wide and f 1.5 km thick) in the mine area, with outcrops of granitoid batholiths to the...within the strongly deformed and sheared zone of the Mine Fig. 4. Geological map of the Mount Gibson gold...gold lode contained along a shear zone within the Mine Sequence (after Yeats and Groves, 1998). 234 ...and metamorphic recrystallization. At Orion Two mine of Fig. 5. Photomicrographs of tourmaline from |  | | Journal (article/letter/editorial) | | 1996). In metapelites, tourmaline of the schorl-dravite series is common. Experimental studies have shown...distribution of retrograde borosilicates such as dumortierite, in the field, we can trace the movement of...the migmatites. Other borosilicates, such as dumortierite, were not observed. Whole-rock boron analyses...almost absent in the southern half. It is schorl-dravite in composition (XMg =0·53â 0·78) and occurs in...showing the mode of occurrence of tourmaline and dumortierite from the Komagane area: (g) Prograde tourmaline |  | | Journal (article/letter/editorial) | | 1996). In metapelites, tourmaline of the schorl-dravite series is common. Experimental studies have shown...distribution of retrograde borosilicates such as dumortierite, in the field, we can trace the movement of...the migmatites. Other borosilicates, such as dumortierite, were not observed. Whole-rock boron analyses...almost absent in the southern half. It is schorl-dravite in composition (XMg =0·53â 0·78) and occurs in...showing the mode of occurrence of tourmaline and dumortierite from the Komagane area: (g) Prograde tourmaline |
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