PUNKARUAIVITE, LiTi2[Si4O11(OH)](OH)2{middle dot}H2O, A NEW MINERAL SPECIES FROM HYDROTHERMAL ASSEMBLAGES, KHIBINY AND LOVOZERO ALKALINE MASSIFS, KOLA PENINSULA, RUSSIA

Yakovenchuk, Victor N.; Ivanyuk, Gregory Yu.; Pakhomovsky, Yakov A.; Selivanova, Ekaterina A.; Men'shikov, Yurii P.; Korchak, Julia A.; Krivovichev, Sergey V.; Spiridonova, Dar’ya V.; Zalkind, O. A.

doi:10.3749/canmin.48.1.41

Cited by 17 publications

(7 citation statements)

References 6 publications

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“…Also, epididymite can form large (up to 20-30 cm) aggregates of different morphology: spherules, fibrous, fine-grained, chalky-like, clayey and dense porcelaine-like (Mts Karnasurt, Mannepahk, Sengischorr, Kuftnyun, etc.) and represents the most abundant beryllium mineral at the Lovozero massif [32,61,74,75]. Usually, epididymite grows after chkalovite (Figure 10b) and is replaced by a mineral sequence comprising first beryllite, then bertrandite and finally moraesite.…”

Section: Danalite Be 3 Fe 2+mentioning

confidence: 99%

Beryllium Mineralogy of the Kola Peninsula, Russia—A Review

Lyalina¹,

Selivanova²,

Zozulya³

et al. 2018

Minerals

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This paper reviews the available information on the beryllium mineralogy of the different type of occurrences in the Kola Peninsula, northwest Russia. Beryllium mineralization in the region is mainly associated with alkaline and felsic rocks, which differ significantly in petrological, geochemical, mineralogical features and age. In total 28 beryllium minerals are established on the Kola Peninsula up today. Beryl is one of the ore minerals in the differentiated granite pegmatites of the Kolmozerskoe lithium deposit. A large diversity of beryllium minerals occur in the pegmatites and hydrothermal veins formed in the late stages of the Lovozero and Khibiny alkaline massifs. Most of these minerals, as leifite, lovdarite, odintsovite, sphaerobertrandite and tugtupite are rare in other environments and have unique properties. These minerals formed under conditions of extreme alkalinity and their formation was favored by abrupt changes in the alkalinity regimes. Some of minerals, as chrysoberyl in xenoliths of hornfels, genthelvite and unique intergrowth of meliphanite and leucophanite formed in contrasting geochemical fronts between felsic/intermediate and mafic rocks.

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Section: Danalite Be 3 Fe 2+mentioning

confidence: 99%

Beryllium Mineralogy of the Kola Peninsula, Russia—A Review

Lyalina¹,

Selivanova²,

Zozulya³

et al. 2018

Minerals

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“…In addition to titanite and titanomagnetite, the apatite-nepheline deposits contain numerous pegmatites with rare titanium minerals that have important functional properties, for example, ferroelectric loparite-(Ce) [2], molecular sieve chivruaiite [3,4] (Ca-analog of synthetic microporous titanosilicate ETS-4 [5,6]), cation exchangers kukisvumite and punkaruaivite [7][8][9][10] (respectively, Zn and Li analogues of synthetic titanosilicate AM-4 [11,12]), cation exchangers sitinakite [13] (natural analogue of synthetic titanosilicate Ionsiv IE-911 [14][15][16]), and minerals of the ivanyukite group [17][18][19][20]. Besides, these and other synthetic titanium-based compounds (ETS-2, ETS-10, JDF-L1, LHT-9, MIL-125, etc.)…”

Section: Introductionmentioning

confidence: 99%

Titanite Ores of the Khibiny Apatite-Nepheline-Deposits: Selective Mining, Processing and Application for Titanosilicate Synthesis

et al. 2018

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Geological setting and mineral composition of (apatite)-nepheline-titanite ore from the Khibiny massif enable selective mining of titanite ore, and its processing with sulfuric-acid method, without preliminary concentration in flotation cells. In this process flow diagram, titanite losses are reduced by an order of magnitude in comparison with a conventional flotation technology. Further, dissolution of titanite in concentrated sulfuric acid produces titanyl sulfate, which, in turn, is a precursor for titanosilicate synthesis. In particular, synthetic analogues of the ivanyukite group minerals, SIV, was synthesized with hydrothermal method from the composition based on titanyl-sulfate, and assayed as a selective cation-exchanger for Cs and Sr.

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“…Another sodium titanosilicate, lintisite, Na 3 LiTi 2 Si 4 O 14 • 2H 2 O, is closely related to vinogradovite and has the constant sodium content of 3 apfu in all known localities (Fig. 1 (Yakovenchuk et al 2010). In contrast to paravinogradovite, both these minerals do not contain sufficient amount of impurities in their compositions.…”

mentioning

confidence: 99%

“…The (Yakovenchuk et al 2010). All these species are late-stage hydrothermal minerals formed as a result of alteration of earlier titanosilicates: lorenzenite, lamprophyllite, lomonosovite, murmanite, etc.…”

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confidence: 99%