Extremely Fluorine-Rich Fluoborite from Fumarolic Exhalations of the Tolbachik Volcano, Kamchatka

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Extremely Fluorine-Rich Fluoborite from Fumarolic Exhalations of the Tolbachik Volcano, Kamchatka. / Bulakh, M. O.; Pekov, I. V.; Chukanov, N. V.; Yapaskurt, V. O.; Koshlyakova, N. N.; Britvin, S. N.; Sidorov, E. G.

In: Geology of Ore Deposits, Vol. 64, No. 7, 01.12.2022, p. 432-441.

Research output: Contribution to journal › Article › peer-review

Author

Bulakh, M. O. ; Pekov, I. V. ; Chukanov, N. V. ; Yapaskurt, V. O. ; Koshlyakova, N. N. ; Britvin, S. N. ; Sidorov, E. G. / Extremely Fluorine-Rich Fluoborite from Fumarolic Exhalations of the Tolbachik Volcano, Kamchatka. In: Geology of Ore Deposits. 2022 ; Vol. 64, No. 7. pp. 432-441.

BibTeX

@article{8fca40d4bc424adabe3ba34ce5fd7b41,

title = "Extremely Fluorine-Rich Fluoborite from Fumarolic Exhalations of the Tolbachik Volcano, Kamchatka",

abstract = "Abstract: Fluoborite extremely close to the fluorine endmember of the fluoborite Mg3[BO3]F3–hydroxylborite Mg3[BO3](ОН)3 series has been found in exhalations of the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. The proportion of the molecule Mg3[BO3](ОН)3 in it does not exceed 1 mol %. This borate is associated with halite, sylvite, langbeinite- and aphthitalite-group sulfates, anhydrite, krasheninnikovite, sanidine, fluorophlogopite, hematite, tenorite, chubarovite, alluaudite-group arsenates, lammerite, and urusovite. Fluoborite occurs as tiny acicular or hairlike crystals up to 5 mm long assembled in radial, near-parallel or chaotic open-work aggregates up to 10 cm across. Its chemical composition determined by electron microprobe is, wt %: 38.71 Mg, 5.90 B, 25.52 O, 30.83 F, total 100.96; the empirical formula is Mg2.97B1.02O2.98F3.03. The unit-cell parameters calculated from the powder X-ray diffraction pattern are: a = 8.808(4), c = 3.098(2) {\AA}, V = 208.1(3){\AA}3. The IR and Raman spectra of borates of the fluoborite–hydroxylborite series are given and discussed. Fluoborite occurring in the Arsenatnaya fumarole crystallized at a temperature no lower than 450°C. The fumarolic genetic type is novel for this borate.",

keywords = "IR spectrum, Kamchatka, Raman spectrum, Tolbachik volcano, fluoborite, fumarole, hydroxylborite, natural fluoroborate",

author = "Bulakh, {M. O.} and Pekov, {I. V.} and Chukanov, {N. V.} and Yapaskurt, {V. O.} and Koshlyakova, {N. N.} and Britvin, {S. N.} and Sidorov, {E. G.}",

year = "2022",

month = dec,

day = "1",

doi = "10.1134/S1075701522070042",

language = "русский",

volume = "64",

pages = "432--441",

journal = "Geology of Ore Deposits",

issn = "1075-7015",

publisher = "МАИК {"}Наука/Интерпериодика{"}",

number = "7",

}

RIS

TY - JOUR

T1 - Extremely Fluorine-Rich Fluoborite from Fumarolic Exhalations of the Tolbachik Volcano, Kamchatka

AU - Bulakh, M. O.

AU - Pekov, I. V.

AU - Chukanov, N. V.

AU - Yapaskurt, V. O.

AU - Koshlyakova, N. N.

AU - Britvin, S. N.

AU - Sidorov, E. G.

PY - 2022/12/1

Y1 - 2022/12/1

N2 - Abstract: Fluoborite extremely close to the fluorine endmember of the fluoborite Mg3[BO3]F3–hydroxylborite Mg3[BO3](ОН)3 series has been found in exhalations of the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. The proportion of the molecule Mg3[BO3](ОН)3 in it does not exceed 1 mol %. This borate is associated with halite, sylvite, langbeinite- and aphthitalite-group sulfates, anhydrite, krasheninnikovite, sanidine, fluorophlogopite, hematite, tenorite, chubarovite, alluaudite-group arsenates, lammerite, and urusovite. Fluoborite occurs as tiny acicular or hairlike crystals up to 5 mm long assembled in radial, near-parallel or chaotic open-work aggregates up to 10 cm across. Its chemical composition determined by electron microprobe is, wt %: 38.71 Mg, 5.90 B, 25.52 O, 30.83 F, total 100.96; the empirical formula is Mg2.97B1.02O2.98F3.03. The unit-cell parameters calculated from the powder X-ray diffraction pattern are: a = 8.808(4), c = 3.098(2) Å, V = 208.1(3)Å3. The IR and Raman spectra of borates of the fluoborite–hydroxylborite series are given and discussed. Fluoborite occurring in the Arsenatnaya fumarole crystallized at a temperature no lower than 450°C. The fumarolic genetic type is novel for this borate.

AB - Abstract: Fluoborite extremely close to the fluorine endmember of the fluoborite Mg3[BO3]F3–hydroxylborite Mg3[BO3](ОН)3 series has been found in exhalations of the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. The proportion of the molecule Mg3[BO3](ОН)3 in it does not exceed 1 mol %. This borate is associated with halite, sylvite, langbeinite- and aphthitalite-group sulfates, anhydrite, krasheninnikovite, sanidine, fluorophlogopite, hematite, tenorite, chubarovite, alluaudite-group arsenates, lammerite, and urusovite. Fluoborite occurs as tiny acicular or hairlike crystals up to 5 mm long assembled in radial, near-parallel or chaotic open-work aggregates up to 10 cm across. Its chemical composition determined by electron microprobe is, wt %: 38.71 Mg, 5.90 B, 25.52 O, 30.83 F, total 100.96; the empirical formula is Mg2.97B1.02O2.98F3.03. The unit-cell parameters calculated from the powder X-ray diffraction pattern are: a = 8.808(4), c = 3.098(2) Å, V = 208.1(3)Å3. The IR and Raman spectra of borates of the fluoborite–hydroxylborite series are given and discussed. Fluoborite occurring in the Arsenatnaya fumarole crystallized at a temperature no lower than 450°C. The fumarolic genetic type is novel for this borate.

KW - IR spectrum

KW - Kamchatka

KW - Raman spectrum

KW - Tolbachik volcano

KW - fluoborite

KW - fumarole

KW - hydroxylborite

KW - natural fluoroborate

UR - https://www.mendeley.com/catalogue/696d3947-52e1-39a9-8323-d4289f1cb337/

U2 - 10.1134/S1075701522070042

DO - 10.1134/S1075701522070042

M3 - статья

VL - 64

SP - 432

EP - 441

JO - Geology of Ore Deposits

JF - Geology of Ore Deposits

SN - 1075-7015

IS - 7

ER -

ID: 103320914