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![Infrared spectrum of brandãoite.]()
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![Scanning electron microscopy images of brandãoite: (a) lath-like flattened prisms and (b) image of two crystals in the section used for electron microprobe analysis; and (c) morphology of an ideal crystal.]()
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![The structure of brandãoite projected down [100], showing the slabs of Fig. 4 linked in the c direction by (BeO2{OH}{H2O}) tetrahedra, with OW5 (H2O) groups (blue circles) in the interstices.]()
![The four-membered ring of alternating [BeO2{OH}{H2O}] and (PO4) tetrahedra in brandãoite. Key: purple = (PO4) tetrahedra and yellow = [BeO2{OH}{H2O}] tetrahedra.]()
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brandaoite
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Journal Article
Brandãoite, [BeAl 2 (PO 4 ) 2 (OH) 2 (H 2 O) 4 ](H 2 O), a new Be–Al phosphate mineral from the João Firmino mine, Pomarolli farm region, Divino das Laranjeiras County, Minas Gerais State, Brazil: description and crystal structure
Journal: Mineralogical Magazine
Published: 01 April 2019
Mineralogical Magazine (2019) 83 (2): 261–267.
...Luiz A. D. Menezes Filho; Mário L. S. C. Chaves; Mark A. Cooper; Neil A. Ball; Yassir A. Abdu; Ryan Sharpe; Maxwell C. Day; Frank C. Hawthorne Abstract Brandãoite, [BeAl 2 (PO 4 ) 2 (OH) 2 (H 2 O) 4 ](H 2 O), is a new Be–Al phosphate mineral from the João Firmino mine, Pomarolli farm region, Divino...
FIGURES
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Image
Infrared spectrum of brandãoite.
in Brandãoite, [BeAl 2 (PO 4 ) 2 (OH) 2 (H 2 O) 4 ](H 2 O), a new Be–Al phosphate mineral from the João Firmino mine, Pomarolli farm region, Divino das Laranjeiras County, Minas Gerais State, Brazil: description and crystal structure
> Mineralogical Magazine
Published: 01 April 2019
Fig. 2. Infrared spectrum of brandãoite.
Image
Optical orientation (°) of brandãoite. a b c X 87....
in Brandãoite, [BeAl 2 (PO 4 ) 2 (OH) 2 (H 2 O) 4 ](H 2 O), a new Be–Al phosphate mineral from the João Firmino mine, Pomarolli farm region, Divino das Laranjeiras County, Minas Gerais State, Brazil: description and crystal structure
> Mineralogical Magazine
Published: 01 April 2019
Table 1. Optical orientation (°) of brandãoite. a b c X 87.6 124.0 31.2 Y 54.0 136.4 118.8 Z 143.9 113.8 101.1
Image
Miscellaneous Information for brandãoite. Crystal data Crysta...
in Brandãoite, [BeAl 2 (PO 4 ) 2 (OH) 2 (H 2 O) 4 ](H 2 O), a new Be–Al phosphate mineral from the João Firmino mine, Pomarolli farm region, Divino das Laranjeiras County, Minas Gerais State, Brazil: description and crystal structure
> Mineralogical Magazine
Published: 01 April 2019
Table 4. Miscellaneous Information for brandãoite. Crystal data Crystal size (μm) 3 × 4 × 80 Crystal system, space group P $\bar{1}$ Temperature (K) 293 a , b , c (Å) 6.100(4), 8.616(4), 10.261(5) α, β, γ (°) 93.191(11), 95.120(11), 96.863(11) V
Image
Proposed H bonding (Å and °) in brandãoite. OH1–OW5 2.841(8) ...
in Brandãoite, [BeAl 2 (PO 4 ) 2 (OH) 2 (H 2 O) 4 ](H 2 O), a new Be–Al phosphate mineral from the João Firmino mine, Pomarolli farm region, Divino das Laranjeiras County, Minas Gerais State, Brazil: description and crystal structure
> Mineralogical Magazine
Published: 01 April 2019
Table 7. Proposed H bonding (Å and °) in brandãoite. OH1–OW5 2.841(8) OH2–O7 3.215(7) OW1–O3 2.819(6) H1···O3 1.87(3) OW1–H1–O3 164(8) OW1–O6 2.713(7) H2···O6 1.742(18) OW1–H2–O6 170(8) O3–OW1–O6 103.4(2) OW2–O8 2.615(7) H3···O8
Image
Chemical composition (wt.%) for brandãoite. Constituent Wt.% Rang...
in Brandãoite, [BeAl 2 (PO 4 ) 2 (OH) 2 (H 2 O) 4 ](H 2 O), a new Be–Al phosphate mineral from the João Firmino mine, Pomarolli farm region, Divino das Laranjeiras County, Minas Gerais State, Brazil: description and crystal structure
> Mineralogical Magazine
Published: 01 April 2019
Table 2. Chemical composition (wt.%) for brandãoite. Constituent Wt.% Range Al 2 O 3 20.15(54) 19.39–20.64 P 2 O 5 28.42(65) 27.63–29.21 BeO 4.85(16) 4.72–5.08 H 2 O* 21.47 – Total 74.89
Image
Miscellaneous Information for brandãoite. Crystal data Crysta...
in Brandãoite, [BeAl 2 (PO 4 ) 2 (OH) 2 (H 2 O) 4 ](H 2 O), a new Be–Al phosphate mineral from the João Firmino mine, Pomarolli farm region, Divino das Laranjeiras County, Minas Gerais State, Brazil: description and crystal structure
> Mineralogical Magazine
Published: 01 April 2019
Table 4. Miscellaneous Information for brandãoite. Crystal data Crystal size (μm) 3 × 4 × 80 Crystal system, space group P $\bar{1}$ Temperature (K) 293 a , b , c (Å) 6.100(4), 8.616(4), 10.261(5) α, β, γ (°) 93.191(11), 95.120(11), 96.863(11) V
Image
Selected interatomic distances (Å) and angles (°) for brandãoite. ...
in Brandãoite, [BeAl 2 (PO 4 ) 2 (OH) 2 (H 2 O) 4 ](H 2 O), a new Be–Al phosphate mineral from the João Firmino mine, Pomarolli farm region, Divino das Laranjeiras County, Minas Gerais State, Brazil: description and crystal structure
> Mineralogical Magazine
Published: 01 April 2019
Table 6. Selected interatomic distances (Å) and angles (°) for brandãoite. Be –O6 1.618(10) P 1–O1 1.535(5) P 2–O5 1.532(5) Be –O8 1.631(10) P 1–O2 1.533(5) P 2–O6 1.530(5) Be –OH1 1.600(10) P 1–O3 1.532(5) P 2–O7 1.539(5) Be –OW1 1.679(10) P 1–O4
Image
Atom positions and displacement parameters (Å) 2 for brandãoite. S...
in Brandãoite, [BeAl 2 (PO 4 ) 2 (OH) 2 (H 2 O) 4 ](H 2 O), a new Be–Al phosphate mineral from the João Firmino mine, Pomarolli farm region, Divino das Laranjeiras County, Minas Gerais State, Brazil: description and crystal structure
> Mineralogical Magazine
Published: 01 April 2019
Table 5. Atom positions and displacement parameters (Å) 2 for brandãoite. Site x y z U eq Be 0.8113(14) 0.1403(11) 0.5481(8) 0.0128(16) P 1 0.3941(3) 0.67098(19) 0.11998(16) 0.0084(5) P 2 0.0332(3) 0.1053(2) 0.31480(16) 0.0100(5) Al 1 0.3609(3
Image
Scanning electron microscopy images of brandãoite: ( a ) lath-like flattene...
in Brandãoite, [BeAl 2 (PO 4 ) 2 (OH) 2 (H 2 O) 4 ](H 2 O), a new Be–Al phosphate mineral from the João Firmino mine, Pomarolli farm region, Divino das Laranjeiras County, Minas Gerais State, Brazil: description and crystal structure
> Mineralogical Magazine
Published: 01 April 2019
Fig. 1. Scanning electron microscopy images of brandãoite: ( a ) lath-like flattened prisms and ( b ) image of two crystals in the section used for electron microprobe analysis; and ( c ) morphology of an ideal crystal.
Image
Bond-valence (vu) * table for brandãoite. Site Be P 1 P 2 ...
in Brandãoite, [BeAl 2 (PO 4 ) 2 (OH) 2 (H 2 O) 4 ](H 2 O), a new Be–Al phosphate mineral from the João Firmino mine, Pomarolli farm region, Divino das Laranjeiras County, Minas Gerais State, Brazil: description and crystal structure
> Mineralogical Magazine
Published: 01 April 2019
Table 8. Bond-valence (vu) * table for brandãoite. Site Be P 1 P 2 Al 1 Al 2 Σ H1 H2 H3 H4 H5 H6 H7 H8 H9 H10 H11 H12 Σ O1 1.25 0.49 1.74 0.2 1.94 O2 1.26 0.52 1.78 0.2 1.98 O3 1.26 0.53 1.79 0.2
Image
![The structure of brandãoite projected down [100], showing the slabs of Fig. 4 linked in the c direction by (BeO2{OH}{H2O}) tetrahedra, with OW5 (H2O) groups (blue circles) in the interstices.](https://gsw.silverchair-cdn.com/gsw/Content_public/Journal/minmag/83/2/10.1180_mgm.2018.121/2/s_s0026461x18001214_fig5.jpeg?Expires=2147483647&Signature=u0FfgYilDIkErTkoQHeORQIZ5si9F2im1pFthn1l9n80HvbpQluSTx72SxgD6vYs8x53KiCL4N1GPfpUNqkzqVsNGLNwnM0cjUinBKZvjEJXanfbfbVFNvx9JxNWcX202rxhnr7WZAjjq4Si6EpbXxOOPQwvwxXIfjID3N5m~~E62RdEcCZs5mWblLNL1p3KtRlKEI0d2r2GlM3kjW6DFX7-c1p86Vi5A0iU1SZ44oj7Qwm450OF7JSEkwi2IzgNFGGZIOU0Wyh485SrxgsZzKkqRuzP7tOAiFcK3msyj7jV6XpcTpdQXQmEZ5FspCm9u1UZ7ezzlnjwwWHCUC2AYw__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA)
The structure of brandãoite projected down [100], showing the slabs of Fig...
in Brandãoite, [BeAl 2 (PO 4 ) 2 (OH) 2 (H 2 O) 4 ](H 2 O), a new Be–Al phosphate mineral from the João Firmino mine, Pomarolli farm region, Divino das Laranjeiras County, Minas Gerais State, Brazil: description and crystal structure
> Mineralogical Magazine
Published: 01 April 2019
Fig. 5. The structure of brandãoite projected down [100], showing the slabs of Fig. 4 linked in the c direction by (BeO 2 {OH}{H 2 O}) tetrahedra, with OW5 (H 2 O) groups (blue circles) in the interstices.
Image
![The four-membered ring of alternating [BeO2{OH}{H2O}] and (PO4) tetrahedra in brandãoite. Key: purple = (PO4) tetrahedra and yellow = [BeO2{OH}{H2O}] tetrahedra.](https://gsw.silverchair-cdn.com/gsw/Content_public/Journal/minmag/83/2/10.1180_mgm.2018.121/2/s_s0026461x18001214_fig3.jpeg?Expires=2147483647&Signature=NeAJ6o6gT8xvWjmmLyHxlI231vluGAZ40B37acKf-LhdqRS7Wb~auXY8wyb3uj60hji85CioHMX6-slD4fJNHWSUMbxb~gBwc8BInTjJW-IQZZmmUvtcGr40XRveEy0sMGSRsKseykYNB2ZQIPCVkBEYpWA9oWrrjHIQFC873U~TS7FJHfqXhzUdBrbqoDI7bNMRncfnRYbklHbyZaSEgK0wugmffTuOTno1qmCvijtmn3dIB3wye09q6Q7oNkWkAH9MDAg2TtENidlMdT88uWScIN1kSbJBsXu3wiVOC1jR7xuhb-K7LQj110ZCc5ZHsssOkbr-Ec-1ow0wFfmJKg__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA)
The four-membered ring of alternating [BeO 2 {OH}{H 2 O}] and (PO 4 ) tetra...
in Brandãoite, [BeAl 2 (PO 4 ) 2 (OH) 2 (H 2 O) 4 ](H 2 O), a new Be–Al phosphate mineral from the João Firmino mine, Pomarolli farm region, Divino das Laranjeiras County, Minas Gerais State, Brazil: description and crystal structure
> Mineralogical Magazine
Published: 01 April 2019
Fig. 3. The four-membered ring of alternating [BeO 2 {OH}{H 2 O}] and (PO 4 ) tetrahedra in brandãoite. Key: purple = (PO 4 ) tetrahedra and yellow = [BeO 2 {OH}{H 2 O}] tetrahedra.
Journal Article
New minerals and nomenclature modifications approved in 2017
Journal: Mineralogical Magazine
Published: 01 October 2017
Mineralogical Magazine (2017) 81 (5): 1279–1286.
...., Nestola, F., Škoda, R., Cámara, F., Bosi, F., Ciriotti, M.E., Hålenius, U., Schnyder, C. and Bracco, R. (2017) Rüdlingerite, IMA 2016-054a. CNMNC Newsletter No. 39, October 2017, page 1282; Mineralogical Magazine , 81 , 1279–1286. IMA No. 2016-071a Brandãoite BeAl 2 (PO 4 ) 2 (OH) 2 (H 2 O...
Journal Article
New minerals and nomenclature modifications approved in 2017
Journal: European Journal of Mineralogy
Publisher: GeoScienceWorld Journals
Published: 01 October 2017
European Journal of Mineralogy (2017) 29 (5): 931–936.
...(60) *E-mail: [email protected] Brandãoite BeAl 2 (PO 4 ) 2 (OH) 2 (H 2 O) 5 “João Firmino mine”, Pomarolli farm region, Divino das Laranjeiras Co., Minas Gerais, Brazil (18°40′25″S, 41°29′27.5″W) Luis Menezes, Mario Luiz de Sá Carneiro Chaves, Mark A. Cooper, Neil...
Image
Simulated powder X-ray diffraction data (from single-crystal data) for bran...
in Brandãoite, [BeAl 2 (PO 4 ) 2 (OH) 2 (H 2 O) 4 ](H 2 O), a new Be–Al phosphate mineral from the João Firmino mine, Pomarolli farm region, Divino das Laranjeiras County, Minas Gerais State, Brazil: description and crystal structure
> Mineralogical Magazine
Published: 01 April 2019
Table 3. Simulated powder X-ray diffraction data (from single-crystal data) for brandãoite. I (meas.) % d (meas.) Å h k l I (meas.) % d (meas.) Å h k l 23 10.197 0 0 1 21 2.154 2 0 3 82 6 . 772 0 $\bar{\bf 1}$ 1 2.153 2 $\bar{3
Image
Simulated powder X-ray diffraction data (from single-crystal data) for bran...
in Brandãoite, [BeAl 2 (PO 4 ) 2 (OH) 2 (H 2 O) 4 ](H 2 O), a new Be–Al phosphate mineral from the João Firmino mine, Pomarolli farm region, Divino das Laranjeiras County, Minas Gerais State, Brazil: description and crystal structure
> Mineralogical Magazine
Published: 01 April 2019
Table 3. Simulated powder X-ray diffraction data (from single-crystal data) for brandãoite. I (meas.) % d (meas.) Å h k l I (meas.) % d (meas.) Å h k l 23 10.197 0 0 1 21 2.154 2 0 3 82 6 . 772 0 $\bar{\bf 1}$ 1 2.153 2 $\bar{3
Image
Simulated powder X-ray diffraction data (from single-crystal data) for bran...
in Brandãoite, [BeAl 2 (PO 4 ) 2 (OH) 2 (H 2 O) 4 ](H 2 O), a new Be–Al phosphate mineral from the João Firmino mine, Pomarolli farm region, Divino das Laranjeiras County, Minas Gerais State, Brazil: description and crystal structure
> Mineralogical Magazine
Published: 01 April 2019
Table 3. Simulated powder X-ray diffraction data (from single-crystal data) for brandãoite. I (meas.) % d (meas.) Å h k l I (meas.) % d (meas.) Å h k l 23 10.197 0 0 1 21 2.154 2 0 3 82 6 . 772 0 $\bar{\bf 1}$ 1 2.153 2 $\bar{3
Image
Simulated powder X-ray diffraction data (from single-crystal data) for bran...
in Brandãoite, [BeAl 2 (PO 4 ) 2 (OH) 2 (H 2 O) 4 ](H 2 O), a new Be–Al phosphate mineral from the João Firmino mine, Pomarolli farm region, Divino das Laranjeiras County, Minas Gerais State, Brazil: description and crystal structure
> Mineralogical Magazine
Published: 01 April 2019
Table 3. Simulated powder X-ray diffraction data (from single-crystal data) for brandãoite. I (meas.) % d (meas.) Å h k l I (meas.) % d (meas.) Å h k l 23 10.197 0 0 1 21 2.154 2 0 3 82 6 . 772 0 $\bar{\bf 1}$ 1 2.153 2 $\bar{3
Image
Simulated powder X-ray diffraction data (from single-crystal data) for bran...
in Brandãoite, [BeAl 2 (PO 4 ) 2 (OH) 2 (H 2 O) 4 ](H 2 O), a new Be–Al phosphate mineral from the João Firmino mine, Pomarolli farm region, Divino das Laranjeiras County, Minas Gerais State, Brazil: description and crystal structure
> Mineralogical Magazine
Published: 01 April 2019
Table 3. Simulated powder X-ray diffraction data (from single-crystal data) for brandãoite. I (meas.) % d (meas.) Å h k l I (meas.) % d (meas.) Å h k l 23 10.197 0 0 1 21 2.154 2 0 3 82 6 . 772 0 $\bar{\bf 1}$ 1 2.153 2 $\bar{3
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