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berlinite

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Journal Article

Re-examination of berlinite (AlPO 4 ) from the Cioclovina Cave, Romania

Bogdan P. Onac, Herta S. Effenberger
Published: 01 November 2007
American Mineralogist (2007) 92 (11-12): 1998–2001.
DOI: https://doi.org/10.2138/am.2007.2581
...Bogdan P. Onac; Herta S. Effenberger Abstract Berlinite is a mineral indicative of high-temperature formation and, therefore, it would not be expected to be present in a sedimentary environment. In this study, we review the characteristics of a berlinite-bearing deposit and present a single-crystal...
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First reported sedimentary occurrence of berlinite (AlPO 4 ) in phosphate-bearing sediments from Cioclovina Cave, Romania—Comment

Ştefan Marincea, Delia-Georgeta Dumitraş
Published: 01 July 2005
American Mineralogist (2005) 90 (7): 1203–1208.
DOI: https://doi.org/10.2138/am.2005.418
...Ştefan Marincea; Delia-Georgeta Dumitraş Abstract In a recent work, Onac and White (2003) reported on berlinite, but also chlorellestadite and churchite, from the Bivouac Room, Cioclovina Cave, Romania. Our analyses of materials collected from this site failed to identify berlinite...
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First reported sedimentary occurrence of berlinite (AlPO 4 ) in phosphate-bearing sediments from Cioclovina Cave, Romania

Bogdan P. Onac, William B. White
Published: 01 August 2003
American Mineralogist (2003) 88 (8-9): 1395–1397.
DOI: https://doi.org/10.2138/am-2003-8-925
...Bogdan P. Onac; William B. White Abstract This paper describes the first reported occurrence of berlinite (AlPO 4 ) formed entirely under sedimentary conditions. Berlinite appears as grayish or colorless fine crystals in vacuoles and along cracks in heavily compacted, phosphate-rich sediments...
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Journal Article

Determination of the high-low inversion in berlinite (AlPO 4 ) to 6 kbar

Lewis H. Cohen, William Klement, Jr.
Published: 01 August 1973
American Mineralogist (1973) 58 (7-8): 796–798.
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( a ) TEM FIB foil overview of the mosaic whitlockite grain with spherical ...

( a ) TEM FIB foil overview of the mosaic whitlockite grain with spherical ...

Published: 01 October 2023
Figure 10. ( a ) TEM FIB foil overview of the mosaic whitlockite grain with spherical amorphous inclusions with berlinite composition. Foil A #6366, HAADF Z-contrast image. ( b ) Close-up view of interior of whitlockite with amorphous inclusions with berlinite composition (dark) and subgrain
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Stability field of MgAlPO 4 O and results of bracketing experiments of the ...

Stability field of MgAlPO 4 O and results of bracketing experiments of the ...

Published: 01 March 2007
Fig. 9. Stability field of MgAlPO 4 O and results of bracketing experiments of the reaction 3 MgAlPO 4 O ⇔ farringtonite + berlinite + corundum. α-β transition of berlinite according to Cohen & Klement (1973) .
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Images of TEM samples. ( a ) A foil from experimental sample HP-11 with ber...

Images of TEM samples. ( a ) A foil from experimental sample HP-11 with ber...

Published: 01 November 2003
F igure 4. Images of TEM samples. ( a ) A foil from experimental sample HP-11 with berlinite-quartz zoned crystals in silicate glass. ( b ) Dark-field image of a fragment of homogenized natural melt inclusions with berlinite globules.
Journal Article

Crystallization of AlPO 4 -SiO 2 solid solutions from granitic melt and implications for P-rich melt inclusions in pegmatitic quartz

Ilya V. Veksler, Rainer Thomas, Richard Wirth
Published: 01 November 2003
American Mineralogist (2003) 88 (11-12): 1724–1730.
DOI: https://doi.org/10.2138/am-2003-11-1213
...F igure 4. Images of TEM samples. ( a ) A foil from experimental sample HP-11 with berlinite-quartz zoned crystals in silicate glass. ( b ) Dark-field image of a fragment of homogenized natural melt inclusions with berlinite globules. ...
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The system Al 2 O 3 -P 2 O 5 -H 2 O at temperatures below 200 °C: Experimental data on the stability of variscite and metavariscite AlPO 4 ·2H 2 O

Kirsten Drüppel, Andreas Hösch, Gerhard Franz
Published: 01 October 2007
American Mineralogist (2007) 92 (10): 1695–1703.
DOI: https://doi.org/10.2138/am.2007.2487
... restricted to soils and aluminous rocks like Al-rich igneous rocks and shales, which interacted with P-rich hydrothermal solutions or groundwater. Variscite dehydrates to berlinite (AlPO 4 ) and a hydrous P-Al-rich fluid. This dehydration reaction AlPO 4 ·2H 2 O = AlPO 4 + 2H 2 O is, however, metastable...
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Al K-edge spectra of <span class="search-highlight">Berlinite</span> (AlPO 4 , [4] Al), Albite (NaAlSi 3 O 8 , ...

Al K-edge spectra of Berlinite (AlPO 4 , [4] Al), Albite (NaAlSi 3 O 8 , ...

Published: 01 January 2014
Figure 13 Al K-edge spectra of Berlinite (AlPO 4 , [4] Al), Albite (NaAlSi 3 O 8 , [6] Al), corundum (Al 2 O 3 , [6] Al) and muscovite (KAl 2 (AlSi 3 O 10 )(OH) 2 , [4] Al and [6] Al) after Ildefonse et al. 1994 ; Cabaret et al. 1996 ). Note that muscovite has both [4] Al and [6] Al
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O K- edge spectra of a) Corundum (Al 2 O 3 ) with [6] Al, <span class="search-highlight">berlinite</span> (AlPO...

O K- edge spectra of a) Corundum (Al 2 O 3 ) with [6] Al, berlinite (AlPO...

Published: 01 January 2014
Figure 24 O K- edge spectra of a) Corundum (Al 2 O 3 ) with [6] Al, berlinite (AlPO 4 ) [4] Al and CaAl 2 O 4 with [4] Al, b) α-quartz and SiO 2 glass, c) TiO 2 (rutile and anatase) and Ti 2 O 3 (Ti 3+ ).
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Phosphorus content of topaz. Phosporus is incorporated by the <span class="search-highlight">berlinite</span> sub...

Phosphorus content of topaz. Phosporus is incorporated by the berlinite sub...

Published: 01 June 2013
F ig . 2. Phosphorus content of topaz. Phosporus is incorporated by the berlinite substitution (Si+Si ↔ P+Al) in topaz from peraluminous granites and greisens in Podlesí. Topaz from greisen in Krásno and from all A-type rocks is free of P.
Journal Article

Lipscombite: A new synthetic “iron lazulite”

Mohamed A. Gheith
Published: 01 August 1953
American Mineralogist (1953) 38 (7-8): 612–628.
... berlinite” (FePOi, quartz isotype) and hematite around 560° C., above which an unknown compound forms at the expense of both hematite and iron berlinite. If ferrous phosphate is only partially oxidized, lipscombite is obtained. However, if ferrous phosphate is heated in air, it is dehydrated and oxidized...
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Electron microprobe distribution maps of Al. Scale bars correspond to 50 μm...

Electron microprobe distribution maps of Al. Scale bars correspond to 50 μm...

Published: 01 November 2003
F igure 2. Electron microprobe distribution maps of Al. Scale bars correspond to 50 μm. ( a ) Separate individual berlinite and quartz crystals in granitic glass at 700 °C and 0.1 GPa, sample HP-6. ( b ) Zoned composite berlinite-quartz crystals in the glass. Sample HP-11, quenched at 550 °C
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Back-scattered electron images of the <span class="search-highlight">berlinite</span>-quartz composite crystals. ...

Back-scattered electron images of the berlinite-quartz composite crystals. ...

Published: 01 November 2003
F igure 3. Back-scattered electron images of the berlinite-quartz composite crystals. ( a) Sample HP-23, 550 °C, 0.2 GPa. ( b ) Sample HP-37, 600 °C, 0.2 GPa.
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TEM X-ray maps showing the distribution of Si, Al, and P in <span class="search-highlight">berlinite</span> globu...

TEM X-ray maps showing the distribution of Si, Al, and P in berlinite globu...

Published: 01 November 2003
F igure 6. TEM X-ray maps showing the distribution of Si, Al, and P in berlinite globules and the host silicate glass in natural homogenized melt inclusions. See discussions in the text.
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Low-frequency parts of Raman spectra of pure <span class="search-highlight">berlinite</span> and quartz showing t...

Low-frequency parts of Raman spectra of pure berlinite and quartz showing t...

Published: 01 November 2003
F igure 7. Low-frequency parts of Raman spectra of pure berlinite and quartz showing the position of the band that shifts in intermediate solid solutions.
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Simplified map showing the location of Cioclovina Cave and <span class="search-highlight">berlinite</span> sample...

Simplified map showing the location of Cioclovina Cave and berlinite sample...

Published: 01 August 2003
F igure 1. Simplified map showing the location of Cioclovina Cave and berlinite sample locations (arrows).
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Total scattering data, Qi(Q) , for a polycrystalline sample of <span class="search-highlight">berlinite</span> a...

Total scattering data, Qi(Q) , for a polycrystalline sample of berlinite a...

Published: 01 March 2002
Fig. 10. Total scattering data, Qi(Q) , for a polycrystalline sample of berlinite at ambient temperature, with data from different banks of detectors being shown separately. The curves through the data are fits using an inverse Monte Carlo method (Tucker et al. , 2002). The data were obtained
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The D(r) pair distribution function for <span class="search-highlight">berlinite</span>, obtained as the Fourie...

The D(r) pair distribution function for berlinite, obtained as the Fourie...

Published: 01 March 2002
Fig. 11. The D(r) pair distribution function for berlinite, obtained as the Fourier transform of the total scattering data show in Fig. 10 using an inverse transform method (Tucker et al. , 2002). The features in D(r) are associated with interatomic distances. The resolution