A New Mineral Ferrisanidine, K[Fe3+Si3O8], the First Natural Feldspar with Species-Defining Iron

Shchipalkina, Nadezhda V.; Pekov, Igor V.; Britvin, Sergey N.; Koshlyakova, Natalia N.; Вигасина, М. Ф.; Sidorov, Evgeny G.

doi:10.3390/min9120770

Cited by 11 publications

(8 citation statements)

References 27 publications

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“…Ferrisanidine, an analogue of sanidine with Fe 3+ instead of Al, the new mineral recently discovered by us in the Arsenatnaya fumarole (Shchipalkina et al, 2019). It occurs in association with aegirine, hematite, cassiterite, sylvite, halite, johillerite, badalovite and arsmirandite.…”

Section: Componentmentioning

confidence: 99%

Unusual silicate mineralization in fumarolic sublimates of the Tolbachik volcano, Kamchatka, Russia &#8211; Part 2: Tectosilicates

et al. 2020

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Abstract. This second of two companion articles devoted to silicate mineralization in fumaroles of the Tolbachik volcano (Kamchatka, Russia) reports data on chemistry, crystal chemistry and occurrence of tectosilicates: sanidine, anorthoclase, ferrisanidine, albite, anorthite, barium feldspar, leucite, nepheline, kalsilite, sodalite and hauyne. Chemical and genetic features of fumarolic silicates are also summarized and discussed. These minerals are typically enriched with “ore” elements (As, Cu, Zn, Sn, Mo, W). Significant admixture of As5+ (up to 36 wt % As2O5 in sanidine) substituting Si is the most characteristic. Hauyne contains up to 4.2 wt % MoO3 and up to 1.7 wt % WO3. All studied silicates are hydrogen-free, including mica and amphiboles which are F-rich. Iron-bearing minerals contain only Fe3+ due to strongly oxidizing formation conditions. In Tolbachik fumaroles, silicates were formed in the temperature range 500–800 ∘C as a result of direct deposition from the gas phase (as volcanic sublimates) or gas–rock interactions. The zonation in distribution of major silicate minerals observed in a vertical section of the Arsenatnaya fumarole, from deep (the hottest) to upper parts is diopside + forsterite + enstatite + andradite → diopside → fluorophlogopite + diopside → sanidine + fluorophlogopite → sanidine. This is in agreement with volatilities of major species-defining metals in volcanic gases. From a crystal-chemical viewpoint, this series corresponds to the following sequence of crystallization of minerals with temperature decrease: nesosilicates → inosilicates → phyllosilicates → tectosilicates.

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Section: Componentmentioning

confidence: 99%

Unusual silicate mineralization in fumarolic sublimates of the Tolbachik volcano, Kamchatka, Russia &#8211; Part 2: Tectosilicates

et al. 2020

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“…This rare silicate has been recorded in only two other occurrences: in fumarolic sublimates of the Tolbachik volcano, Kamchatka, Russia (Shchipalkina et al , 2019, 2020b) and at Pyro Pit Snowstorm mine (Mountain View mine), Nevada, USA (Castor and Ferdock, 2003; ).…”

Section: Volcanological and Mineralogical Overviewmentioning

confidence: 98%

The complex mechanism of Ti⁴⁺ incorporation into litidionite from the Somma–Vesuvius volcano, Italy

Balassone

Panikorovskii

Pellino

et al. 2022

MinMag

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For this study, the rare Cu-bearing silicate fumarolic assemblages from the Somma-Vesuvius volcano (Italy), characterized by the rare mineral litidionite, CuKNaSi 4 O 10 , were investigated.Recently other Cu-and Ti-bearing phases were found in these associations and here we report new data about these mineralizations, in which Ti-bearing litidionite occurs together with kamenevite, perovskite and rutile. Ti-bearing litidionite appears on the latest stages of partial crystallization of Ti-bearing silica glass. Incorporation of Ti 4+ into litidionite crystal structure was investigated in detail. The Raman spectra of Ti-bearing litidionite contain intense band at 597 cm −1 related to antisymmetric bending vibrations of Si-O bonds or overlapping stretching vibrations of Ti-O bonds. The bands in the range 350-500 cm −1 correspond to symmetric bending vibrations of O-Si-O bonds and overlapping stretching vibrations of Ti-O bonds. The crystal structure of Ti-litidionite has been refined in the P ̅ space group, a = 6.9699(7), b = 7.9953(10), c = 9.8227(10) Å, α = 105.186(9), β = 99.458(8), γ = 114.489(10) to R 1 = 0.064 for 1726 unique observed reflections. The refinement of the site-occupation factors confirmed the presence of Ti at five-coordinated M-site.The mean bond distance of 2.125 Å of M-site agrees with its refined occupancy (Ti 0.32 Cu 0.30 Ca 0.29 Fe 0.09 ) 1.00 . The incorporation of Ti into litidionite structure is accompanied by the complex heteropolyhedral substitution according to the scheme V Ti 4+ + VII-VIII □ + IV Al 3+ ↔ V Cu 2+ + VII-VIII (Na,K) + + IV Si 4+ . Two possible configurations for the phase with maximal TiO 2 content (12.06 wt% or 0.56 Ti apfu) CuTiK□Na 2 Si 7 AlO 20 (Z = 1) or CuTiK 2 Na□Si 7 AlO 20 (Z = 1) have been proposed.

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“…3). Является La-Mnаналогом бираита-(Се) (Konev et al, 2005) (Shchipalkina et al, 2019). Минерал такого состава и структуры ранее был описан в образцах родонитовых месторождений Среднего Урала (Брусницын, 2000), а также обнаружен в гальках Мочалина Лога (Южный Урал), образец FMM_1_96761.…”

Section: алекскузнецовит-(La)unclassified

Важнейшие Научные Результаты Минералогического Музея Им. А.Е. Ферсмана В 2019 Году

Плечов¹,

Pekov²,

Паутов³

et al. 2021

Новые Данные О Минералах

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Статья представляет собой сводку основных научных результатов сотрудников Минералогического музея им. А.Е. Ферсмана РАН (Минмузея РАН) за 2019 год. Приведены краткие описания 20 новых минеральных видов: фторапофиллит-(Cs), гмалимит, ферроефремовит, нишанбаевит, дрицит, патынит, малетойваямит, хинганит-(Nd), перклевеит-(La), радекшкодаит-(Ce), виттинкиит, крейтерит, оксивисмутомикролит, сергеванит, полиарсит, юргенсонит, евсеевит, чийокоит, алекскузнецовит-(La), натроафтиталит. В статье суммированы текущие результаты изучения выдающихся минералогических объектов, типоморфных минералов месторождений Поморья, Якутии, Камчатки, Урала, Кавказа, Крыма, Памира и Тянь-Шаня. Приведены данные по детальному изучению монтичеллита, минералов надгруппы эпидота, группы мелилита, а также результаты изучения включений в оливине, плагиоклазе, клинопироксене, ортопироксене и кварце из различных магматических объектов.

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A New Mineral Ferrisanidine, K[Fe3+Si3O8], the First Natural Feldspar with Species-Defining Iron

Cited by 11 publications

References 27 publications

Unusual silicate mineralization in fumarolic sublimates of the Tolbachik volcano, Kamchatka, Russia &#8211; Part 2: Tectosilicates

Unusual silicate mineralization in fumarolic sublimates of the Tolbachik volcano, Kamchatka, Russia &#8211; Part 2: Tectosilicates

The complex mechanism of Ti⁴⁺ incorporation into litidionite from the Somma–Vesuvius volcano, Italy

Важнейшие Научные Результаты Минералогического Музея Им. А.Е. Ферсмана В 2019 Году

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A New Mineral Ferrisanidine, K[Fe3+Si3O8], the First Natural Feldspar with Species-Defining Iron

Cited by 11 publications

References 27 publications

Unusual silicate mineralization in fumarolic sublimates of the Tolbachik volcano, Kamchatka, Russia &amp;#8211; Part 2: Tectosilicates

Unusual silicate mineralization in fumarolic sublimates of the Tolbachik volcano, Kamchatka, Russia &amp;#8211; Part 2: Tectosilicates

The complex mechanism of Ti4+ incorporation into litidionite from the Somma–Vesuvius volcano, Italy

Важнейшие Научные Результаты Минералогического Музея Им. А.Е. Ферсмана В 2019 Году

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Unusual silicate mineralization in fumarolic sublimates of the Tolbachik volcano, Kamchatka, Russia – Part 2: Tectosilicates

Unusual silicate mineralization in fumarolic sublimates of the Tolbachik volcano, Kamchatka, Russia – Part 2: Tectosilicates

The complex mechanism of Ti⁴⁺ incorporation into litidionite from the Somma–Vesuvius volcano, Italy