A new biogenic, struvite-related phosphate, the ammonium-analog of hazenite, (NH4)NaMg2(PO4)2·14H2O Yang Hexiong hyang@u.arizona.edu

Hexiong Yang; Livia Martinelli; Flavia Tasso; Anna Rosa Sprocati; Flavia Pinzari; Zhenxian Liu; Robert T. Downs; Henry J. Sun

doi:10.2138/am.2014.4768

A new biogenic, struvite-related phosphate, the ammonium-analog of hazenite, (NH₄)NaMg₂(PO₄)₂·14H₂O Yang Hexiong hyang@u.arizona.edu

Hexiong Yang, Livia Martinelli, Flavia Tasso, Anna Rosa Sprocati, Flavia Pinzari, Zhenxian Liu, Robert T. Downs, Henry J. Sun

Geosciences

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

11 Scopus citations

Abstract

A new biogenic, struvite-related phosphate, the ammonium analog of hazenite (AAH), ideally (NH₄) NaMg₂(PO₄)₂·14H₂O, has been found in cultures containing the bacterial strain Virgibacillus sp.NOT1 (GenBank Accession Number: JX417495.1) isolated from an XVII Century document made of parchment. The chemical composition of AAH, determined from the combination of electron microprobe and X-ray structural analyses, is [(NH₄)_0.78K_0.22]NaMg₂(PO₄)₂·14H₂O. Single-crystal X-ray diffraction shows that AAH is orthorhombic with space group Pmnb and unit-cell parameters a = 6.9661(6), b = 25.236(3), c = 11.292(1) Å, and V = 1985.0(3) Å³. Compared with hazenite, the substitution of NH₄⁺for K⁺results in a noticeable increase of the average A-O (A = NH₄⁺+K⁺) bond length and the unit-cell volume for AAH, as also observed for struvite vs. struvite-K. Both infrared and Raman spectra of AAH resemble those of hazenite, as well as struvite. Our study reveals that AAH forms only in cultures with Na-bearing solutions and pH below 10.0. No AAH or hazenite was found in experiments with the K-bearing solutions, suggesting the necessity of a Na-bearing solution for AAH formation.

Original language	English (US)
Pages (from-to)	1761-1766
Number of pages	6
Journal	American Mineralogist
Volume	99
Issue number	8-9
DOIs	https://doi.org/10.2138/am.2014.4768
State	Published - Aug 1 2014

Keywords

Ammonium phosphate
X-ray diffraction
biomineral
crystal structure
hazenite
infrared and Raman spectra
struvite-type materials

ASJC Scopus subject areas

Geophysics
Geochemistry and Petrology

Access to Document

10.2138/am.2014.4768

Cite this

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title = "A new biogenic, struvite-related phosphate, the ammonium-analog of hazenite, (NH4)NaMg2(PO4)2·14H2O Yang Hexiong hyang@u.arizona.edu",

abstract = "A new biogenic, struvite-related phosphate, the ammonium analog of hazenite (AAH), ideally (NH4) NaMg2(PO4)2·14H2O, has been found in cultures containing the bacterial strain Virgibacillus sp.NOT1 (GenBank Accession Number: JX417495.1) isolated from an XVII Century document made of parchment. The chemical composition of AAH, determined from the combination of electron microprobe and X-ray structural analyses, is [(NH4)0.78K0.22]NaMg2(PO4)2·14H2O. Single-crystal X-ray diffraction shows that AAH is orthorhombic with space group Pmnb and unit-cell parameters a = 6.9661(6), b = 25.236(3), c = 11.292(1) {\AA}, and V = 1985.0(3) {\AA}3. Compared with hazenite, the substitution of NH4+for K+results in a noticeable increase of the average A-O (A = NH4++K+) bond length and the unit-cell volume for AAH, as also observed for struvite vs. struvite-K. Both infrared and Raman spectra of AAH resemble those of hazenite, as well as struvite. Our study reveals that AAH forms only in cultures with Na-bearing solutions and pH below 10.0. No AAH or hazenite was found in experiments with the K-bearing solutions, suggesting the necessity of a Na-bearing solution for AAH formation.",

keywords = "Ammonium phosphate, X-ray diffraction, biomineral, crystal structure, hazenite, infrared and Raman spectra, struvite-type materials",

author = "Hexiong Yang and Livia Martinelli and Flavia Tasso and Sprocati, {Anna Rosa} and Flavia Pinzari and Zhenxian Liu and Downs, {Robert T.} and Sun, {Henry J.}",

note = "Publisher Copyright: {\textcopyright} 2014 by Walter de Gruyter Berlin/Boston.",

year = "2014",

month = aug,

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doi = "10.2138/am.2014.4768",

language = "English (US)",

volume = "99",

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T1 - A new biogenic, struvite-related phosphate, the ammonium-analog of hazenite, (NH4)NaMg2(PO4)2·14H2O Yang Hexiong hyang@u.arizona.edu

AU - Yang, Hexiong

AU - Martinelli, Livia

AU - Tasso, Flavia

AU - Sprocati, Anna Rosa

AU - Pinzari, Flavia

AU - Liu, Zhenxian

AU - Downs, Robert T.

AU - Sun, Henry J.

PY - 2014/8/1

Y1 - 2014/8/1

N2 - A new biogenic, struvite-related phosphate, the ammonium analog of hazenite (AAH), ideally (NH4) NaMg2(PO4)2·14H2O, has been found in cultures containing the bacterial strain Virgibacillus sp.NOT1 (GenBank Accession Number: JX417495.1) isolated from an XVII Century document made of parchment. The chemical composition of AAH, determined from the combination of electron microprobe and X-ray structural analyses, is [(NH4)0.78K0.22]NaMg2(PO4)2·14H2O. Single-crystal X-ray diffraction shows that AAH is orthorhombic with space group Pmnb and unit-cell parameters a = 6.9661(6), b = 25.236(3), c = 11.292(1) Å, and V = 1985.0(3) Å3. Compared with hazenite, the substitution of NH4+for K+results in a noticeable increase of the average A-O (A = NH4++K+) bond length and the unit-cell volume for AAH, as also observed for struvite vs. struvite-K. Both infrared and Raman spectra of AAH resemble those of hazenite, as well as struvite. Our study reveals that AAH forms only in cultures with Na-bearing solutions and pH below 10.0. No AAH or hazenite was found in experiments with the K-bearing solutions, suggesting the necessity of a Na-bearing solution for AAH formation.

AB - A new biogenic, struvite-related phosphate, the ammonium analog of hazenite (AAH), ideally (NH4) NaMg2(PO4)2·14H2O, has been found in cultures containing the bacterial strain Virgibacillus sp.NOT1 (GenBank Accession Number: JX417495.1) isolated from an XVII Century document made of parchment. The chemical composition of AAH, determined from the combination of electron microprobe and X-ray structural analyses, is [(NH4)0.78K0.22]NaMg2(PO4)2·14H2O. Single-crystal X-ray diffraction shows that AAH is orthorhombic with space group Pmnb and unit-cell parameters a = 6.9661(6), b = 25.236(3), c = 11.292(1) Å, and V = 1985.0(3) Å3. Compared with hazenite, the substitution of NH4+for K+results in a noticeable increase of the average A-O (A = NH4++K+) bond length and the unit-cell volume for AAH, as also observed for struvite vs. struvite-K. Both infrared and Raman spectra of AAH resemble those of hazenite, as well as struvite. Our study reveals that AAH forms only in cultures with Na-bearing solutions and pH below 10.0. No AAH or hazenite was found in experiments with the K-bearing solutions, suggesting the necessity of a Na-bearing solution for AAH formation.

KW - Ammonium phosphate

KW - X-ray diffraction

KW - biomineral

KW - crystal structure

KW - hazenite

KW - infrared and Raman spectra

KW - struvite-type materials

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