A new mineral ferrisanidine, k[fe3+si3o8], the first natural feldspar with species-defining iron

Nadezhda V. Shchipalkina, Igor V. Pekov, Sergey N. Britvin, Natalia N. Koshlyakova, Marina F. Vigasina, Evgeny G. Sidorov

Research output

1 Citation (Scopus)

Abstract

Ferrisanidine, K[Fe3+Si3O8], the first natural feldspar with species-defining iron, is an analogue of sanidine bearing Fe3+ instead of Al. It was found in exhalations of the active Arsenatnaya fumarole at the Second scoria cone of the Northern Breakthrough of the Great Fissure Tolbachik Eruption, Tolbachik volcano, Kamchatka Peninsula, Russia. The associated minerals are aegirine, cassiterite, hematite, sylvite, halite, johillerite, arsmirandite, axelite, aphthitalite. Ferrisanidine forms porous crusts composed by cavernous short prismatic crystals or irregular grains up to 10 μm × 20 μm. Ferrisanidine is transparent, colorless to white, the lustre is vitreous. Dcalc is 2.722 g∙cm−3. The chemical composition of ferrisanidine (wt. %, electron microprobe) is: Na2O 0.25, K2O 15.15, Al2O3 0.27, Fe2O3 24.92, SiO2 60.50, in total 101.09. The empirical formula calculated based on 8 O apfu is (K0.97Na0.03)Ʃ1.00(Si3.03Fe3+0.94Al0.02)Ʃ3.99O8. The crystal structure of ferrisanidine was studied using the Rietveld method, the final R indices are: Rp = 0.0053, Rwp = 0.0075, R1 = 0.0536. Parameters of the monoclinic unit cell are: a = 8.678(4), b = 13.144(8), c = 7.337(5) Å, β = 116.39(8)°, V = 749.6(9) Å3. Space group is C2/m. The crystal structure of ferrisanidine is based on the sanidine-type “ferrisilicate” framework formed by disordered [SiO4] and [Fe3+O4] tetrahedra.

Original languageEnglish
Article number770
JournalMinerals
Volume9
Issue number12
DOIs
Publication statusPublished - Dec 2019

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Feldspar
sanidine
new mineral
crystal structure
feldspar
Bearings (structural)
Minerals
Crystal structure
sylvite
Iron
Rietveld method
iron
aegirine
fumarole
Volcanoes
cassiterite
Hematite
halite
Sodium chloride
fissure

Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Geology

Cite this

Shchipalkina, N. V., Pekov, I. V., Britvin, S. N., Koshlyakova, N. N., Vigasina, M. F., & Sidorov, E. G. (2019). A new mineral ferrisanidine, k[fe3+si3o8], the first natural feldspar with species-defining iron. Minerals, 9(12), [770]. https://doi.org/10.3390/min9120770
Shchipalkina, Nadezhda V. ; Pekov, Igor V. ; Britvin, Sergey N. ; Koshlyakova, Natalia N. ; Vigasina, Marina F. ; Sidorov, Evgeny G. / A new mineral ferrisanidine, k[fe3+si3o8], the first natural feldspar with species-defining iron. In: Minerals. 2019 ; Vol. 9, No. 12.
@article{af2098034285498caa523f0c1b874ef5,
title = "A new mineral ferrisanidine, k[fe3+si3o8], the first natural feldspar with species-defining iron",
abstract = "Ferrisanidine, K[Fe3+Si3O8], the first natural feldspar with species-defining iron, is an analogue of sanidine bearing Fe3+ instead of Al. It was found in exhalations of the active Arsenatnaya fumarole at the Second scoria cone of the Northern Breakthrough of the Great Fissure Tolbachik Eruption, Tolbachik volcano, Kamchatka Peninsula, Russia. The associated minerals are aegirine, cassiterite, hematite, sylvite, halite, johillerite, arsmirandite, axelite, aphthitalite. Ferrisanidine forms porous crusts composed by cavernous short prismatic crystals or irregular grains up to 10 μm × 20 μm. Ferrisanidine is transparent, colorless to white, the lustre is vitreous. Dcalc is 2.722 g∙cm−3. The chemical composition of ferrisanidine (wt. {\%}, electron microprobe) is: Na2O 0.25, K2O 15.15, Al2O3 0.27, Fe2O3 24.92, SiO2 60.50, in total 101.09. The empirical formula calculated based on 8 O apfu is (K0.97Na0.03)Ʃ1.00(Si3.03Fe3+0.94Al0.02)Ʃ3.99O8. The crystal structure of ferrisanidine was studied using the Rietveld method, the final R indices are: Rp = 0.0053, Rwp = 0.0075, R1 = 0.0536. Parameters of the monoclinic unit cell are: a = 8.678(4), b = 13.144(8), c = 7.337(5) {\AA}, β = 116.39(8)°, V = 749.6(9) {\AA}3. Space group is C2/m. The crystal structure of ferrisanidine is based on the sanidine-type “ferrisilicate” framework formed by disordered [SiO4] and [Fe3+O4] tetrahedra.",
keywords = "Crystal structure, Feldspar group, Ferrisanidine, Fumarole, Iron in feldspar, Kamchatka, New mineral, Sanidine, Tolbachik volcano",
author = "Shchipalkina, {Nadezhda V.} and Pekov, {Igor V.} and Britvin, {Sergey N.} and Koshlyakova, {Natalia N.} and Vigasina, {Marina F.} and Sidorov, {Evgeny G.}",
note = "Shchipalkina, N.V.; Pekov, I.V.; Britvin, S.N.; Koshlyakova, N.N.; Vigasina, M.F.; Sidorov, E.G. A New Mineral Ferrisanidine, K[Fe3+Si3O8], the First Natural Feldspar with Species-Defining Iron. Minerals 2019, 9, 770.",
year = "2019",
month = "12",
doi = "10.3390/min9120770",
language = "English",
volume = "9",
journal = "Minerals",
issn = "2075-163X",
publisher = "MDPI AG",
number = "12",

}

Shchipalkina, NV, Pekov, IV, Britvin, SN, Koshlyakova, NN, Vigasina, MF & Sidorov, EG 2019, 'A new mineral ferrisanidine, k[fe3+si3o8], the first natural feldspar with species-defining iron', Minerals, vol. 9, no. 12, 770. https://doi.org/10.3390/min9120770

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.; Vigasina, Marina F.; Sidorov, Evgeny G.

In: Minerals, Vol. 9, No. 12, 770, 12.2019.

Research output

TY - JOUR

T1 - A new mineral ferrisanidine, k[fe3+si3o8], the first natural feldspar with species-defining iron

AU - Shchipalkina, Nadezhda V.

AU - Pekov, Igor V.

AU - Britvin, Sergey N.

AU - Koshlyakova, Natalia N.

AU - Vigasina, Marina F.

AU - Sidorov, Evgeny G.

N1 - Shchipalkina, N.V.; Pekov, I.V.; Britvin, S.N.; Koshlyakova, N.N.; Vigasina, M.F.; Sidorov, E.G. A New Mineral Ferrisanidine, K[Fe3+Si3O8], the First Natural Feldspar with Species-Defining Iron. Minerals 2019, 9, 770.

PY - 2019/12

Y1 - 2019/12

N2 - Ferrisanidine, K[Fe3+Si3O8], the first natural feldspar with species-defining iron, is an analogue of sanidine bearing Fe3+ instead of Al. It was found in exhalations of the active Arsenatnaya fumarole at the Second scoria cone of the Northern Breakthrough of the Great Fissure Tolbachik Eruption, Tolbachik volcano, Kamchatka Peninsula, Russia. The associated minerals are aegirine, cassiterite, hematite, sylvite, halite, johillerite, arsmirandite, axelite, aphthitalite. Ferrisanidine forms porous crusts composed by cavernous short prismatic crystals or irregular grains up to 10 μm × 20 μm. Ferrisanidine is transparent, colorless to white, the lustre is vitreous. Dcalc is 2.722 g∙cm−3. The chemical composition of ferrisanidine (wt. %, electron microprobe) is: Na2O 0.25, K2O 15.15, Al2O3 0.27, Fe2O3 24.92, SiO2 60.50, in total 101.09. The empirical formula calculated based on 8 O apfu is (K0.97Na0.03)Ʃ1.00(Si3.03Fe3+0.94Al0.02)Ʃ3.99O8. The crystal structure of ferrisanidine was studied using the Rietveld method, the final R indices are: Rp = 0.0053, Rwp = 0.0075, R1 = 0.0536. Parameters of the monoclinic unit cell are: a = 8.678(4), b = 13.144(8), c = 7.337(5) Å, β = 116.39(8)°, V = 749.6(9) Å3. Space group is C2/m. The crystal structure of ferrisanidine is based on the sanidine-type “ferrisilicate” framework formed by disordered [SiO4] and [Fe3+O4] tetrahedra.

AB - Ferrisanidine, K[Fe3+Si3O8], the first natural feldspar with species-defining iron, is an analogue of sanidine bearing Fe3+ instead of Al. It was found in exhalations of the active Arsenatnaya fumarole at the Second scoria cone of the Northern Breakthrough of the Great Fissure Tolbachik Eruption, Tolbachik volcano, Kamchatka Peninsula, Russia. The associated minerals are aegirine, cassiterite, hematite, sylvite, halite, johillerite, arsmirandite, axelite, aphthitalite. Ferrisanidine forms porous crusts composed by cavernous short prismatic crystals or irregular grains up to 10 μm × 20 μm. Ferrisanidine is transparent, colorless to white, the lustre is vitreous. Dcalc is 2.722 g∙cm−3. The chemical composition of ferrisanidine (wt. %, electron microprobe) is: Na2O 0.25, K2O 15.15, Al2O3 0.27, Fe2O3 24.92, SiO2 60.50, in total 101.09. The empirical formula calculated based on 8 O apfu is (K0.97Na0.03)Ʃ1.00(Si3.03Fe3+0.94Al0.02)Ʃ3.99O8. The crystal structure of ferrisanidine was studied using the Rietveld method, the final R indices are: Rp = 0.0053, Rwp = 0.0075, R1 = 0.0536. Parameters of the monoclinic unit cell are: a = 8.678(4), b = 13.144(8), c = 7.337(5) Å, β = 116.39(8)°, V = 749.6(9) Å3. Space group is C2/m. The crystal structure of ferrisanidine is based on the sanidine-type “ferrisilicate” framework formed by disordered [SiO4] and [Fe3+O4] tetrahedra.

KW - Crystal structure

KW - Feldspar group

KW - Ferrisanidine

KW - Fumarole

KW - Iron in feldspar

KW - Kamchatka

KW - New mineral

KW - Sanidine

KW - Tolbachik volcano

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U2 - 10.3390/min9120770

DO - 10.3390/min9120770

M3 - Article

AN - SCOPUS:85077251968

VL - 9

JO - Minerals

JF - Minerals

SN - 2075-163X

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M1 - 770

ER -