Crystal structure model of sodium-depleted sacrofanite. Problem of the sacrofanite identification

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A structural model of the sodium-depleted analogue of sacrofanite, a 28-layer mineral of the cancrinite group with the empirical formula (Na3.18Ca2.81K1.93)(Si6.10Al5.83Fe0.07O24)(SO4)1.95F0.51Cl0.19(OH)0.23·0.155H2O from sanidine syenite of the Sacrofano paleovolcano, Latium, Italy was obtained. The studied mineral is hexagonal, space group P-62с; the unit cell parameters [a = 12.90519(13), с = 74.2181(10) Å, V = 10704.6(3) Å3] are close to those of holotype sacrofanite. The aluminosilicate framework of the studied sodium-depleted sacrofanite contains columns of zeolitic cavities of four types (cancrinite, sodalite, Losod, and liottite ones). Their presence is confirmed by IR spectroscopy data, unlike holotype sacrofanite whose published IR spectrum does not contain characteristic band of liottite cage at 547±4 cm-1.

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作者简介

N. Chukanov

Moscow State University; Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry RAS

编辑信件的主要联系方式.
Email: zrmo@minsoc.ru

Faculty of Geology

俄罗斯联邦, Vorobievy Gory, Moscow, 119991; Chernogolovka, Moscow Oblast

N. Zubkova

Moscow State University

Email: zrmo@minsoc.ru

Faculty of Geology

俄罗斯联邦, Vorobievy Gory, Moscow, 119991

I. Pekov

Moscow State University; Vernadsky Institute of Geochemistry and Analytical Chemistry RAS

Email: zrmo@minsoc.ru

Faculty of Geology

俄罗斯联邦, Vorobievy Gory, Moscow, 119991; Kosygina str. 19, Moscow, 119991

D. Ksenofontov

Moscow State University

Email: zrmo@minsoc.ru

Faculty of Geology

俄罗斯联邦, Vorobievy Gory, Moscow, 119991

D. Pushcharovsky

Moscow State University

Email: zrmo@minsoc.ru

Faculty of Geology

俄罗斯联邦, Vorobievy Gory, Moscow, 119991

参考

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  3. Bonaccorsi E., Ballirano P., Cámara F. The crystal structure of sacrofanite, the 74 Å phase of the cancrinite–sodalite supergroup. Micropor. Mesopor. Mater. 2012. Vol. 147. P. 318—326.
  4. Burragato F., Parodi G.C., Zanazzi P.F. Sacrofanite — a new mineral of the cancrinite group. N. Jahrb. Miner. Monatsh. 1980. Vol. 140(1). P. 102—110.
  5. Chukanov N.V., Rastsvetaeva R.K., Pekov I.V., Zadov A.E., Allori R., Zubkova N.V., Giester G., Pushcharovsky D. Yu., Van K.V. Biachellaite, (Na, Ca, K)8(Si6Al6O24)(SO4)2(OH)0.5·H2O, a new mineral species of the cancrinite group. Zapiski RMO (Proc. Russian Miner. Soc.). 2008. Vol. 137. N 4. P. 57—66 (in Russian, English translation: Geol. Ore Deposits. 2009. Vol. 51. N 7. P. 588—594).
  6. Chukanov N.V., Aksenov S.M., Rastsvetaeva R.K. Structural chemistry, IR spectroscopy, properties, and genesis of natural and synthetic microporous cancrinite- and sodalite-related materials: a review. Micropor. Mesopor. Mater. 2021a. Vol. 323. Article N111098.
  7. Chukanov N.V., Zubkova N.V., Pekov I.V., Giester G., Pushcharovsky D. Yu. Sulfite analogue of alloriite from Sacrofano, Latium, Italy: Crystal chemistry and specific features of genesis. Zapiski RMO (Proc. Russian Miner. Soc.). 2021b. Vol. 150. N 1. P. 48—62 (in Russian, English translation: Geol. Ore Deposits. 2021. Vol. 63. N 8. P. 793—804).
  8. Chukanov N.V., Zubkova N.V., Varlamov D.A., Pekov I.V., Belakovskiy D.I., Britvin S.N., V. Van K.V., Ermolaeva V.N., Vozchikova S.A., Pushcharovsky D. Yu. Steudelite, (Na3)[(K, Na)17Ca7]Ca4(Al24Si24O96)(SO3)6F6·4H2O, a new cancrinite-group mineral with afghanite-type framework topology. Phys. Chem. Miner. 2022. Vol. 49. N1.
  9. Chukanov N.V., Aksenov S.M., Pekov I.V. Infrared spectroscopy as a tool for the analysis of framework topology and extraframework components in microporous cancrinite- and sodalite-related aluminosilicates. Spectr. Acta Part A: Molecular and Biomolecular Spectroscopy. 2023. Vol. 287. N 1. Paper 121993. P. 1—10.
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2. Fig. 1. Infrared absorption spectrum of the sodium-depleted sacrofanite. The “fingerprint region” is shown in the inset.

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3. Fig. 2. The arrangement of columns in the structure of the sodium-depleted sacrofanite: views along (а) and perpendicular to (б, left) the c axis as well as different types of cages building the columns: C — cancrinite, S — sodalite, Los — losod and Lio — liottite cages (б, right).

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