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surinamite

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Journal Article

Recommended nomenclature for the sapphirine and surinamite groups (sapphirine supergroup)

E. S. Grew, U. Hålenius, M. Pasero, J. Barbier
Published: 01 August 2008
Mineralogical Magazine (2008) 72 (4): 839–876.
DOI: https://doi.org/10.1180/minmag.2008.072.4.839
...E. S. Grew; U. Hålenius; M. Pasero; J. Barbier Abstract Minerals isostructural with sapphirine-1 A , sapphirine-2 M , and surinamite are closely related chain silicates that pose nomenclature problems because of the large number of sites and potential constituents, including several (Be, B, As, Sb...
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The crystal chemistry of welshite, a non-centrosymmetric ( P 1) aenigmatite-sapphirine-surinamite group mineral

Edward S. Grew, Jacques Barbier, Jim Britten, Ulf Hålenius, Charles K. Shearer
Published: 01 January 2007
American Mineralogist (2007) 92 (1): 80–90.
DOI: https://doi.org/10.2138/am.2007.2250
...+ cation in the M7 site is analogous to that of Ti 4+ cations in the M7 site of other minerals of the aenigmatite-sapphirine-surinamite group, including aenigmatite ( Cannillo et al. 1971 ), rhönite ( Bonaccorsi et al. 1990 ), and makarochkinite ( Grew et al. 2005 ). However, the generally lower Ti...
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Journal Article

Makarochkinite, Ca 2 Fe 4 2+ Fe 3+ TiSi 4 BeAlO 20 , a new beryllosilicate member of the aenigmatite-sapphirine-surinamite group from the Il’men Mountains (southern Urals), Russia

Edward S. Grew, Jacques Barbier, Jim Britten, Martin G. Yates, Vladislav O. Polyakov, Elena P. Shcherbakova, Ulf Hålenius, Charles K. Shearer
Published: 01 August 2005
American Mineralogist (2005) 90 (8-9): 1402–1412.
DOI: https://doi.org/10.2138/am.2005.1759
... = 124.861(6)°, V = 735.7(3) Å 3 . The eight strongest lines in the powder pattern [ d -spacing (Å),( I ),( hkl )] are 7.997(57)(100), 4.779(29)(011), 3.120(32)(012), 2.924(69)(01̅3), 2.676(77)( 2̅03), 2.530(100)( 2̅1̅3), 2.410(28)(22̅3), 2.075(39)(41̅1). Of the aenigmatite-sapphirine-surinamite group...
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The role of Fe and cation order in the crystal chemistry of surinamite, (Mg,Fe 2+ ) 3 (Al,Fe 3+ ) 3 O[AlBeSi 3 O 15 ]: A crystal structure, Mössbauer spectroscopic, and optical spectroscopic study

Jacques Barbier, Edward S. Grew, Elke Hålenius, Ulf Hålenius, Martin G. Yates
Published: 01 April 2002
American Mineralogist (2002) 87 (4): 501–513.
DOI: https://doi.org/10.2138/am-2002-0413
...Jacques Barbier; Edward S. Grew; Elke Hålenius; Ulf Hålenius; Martin G. Yates Abstract The crystal structure of surinamite from “Christmas Point,” Enderby Land, Antarctica, has been newly refined by single-crystal X-ray diffraction: VI ((Mg 2.26 Fe 2+ 0.74 Fe 3+ 0.39 Al 2.61 )O IV (Al 1.00...
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Surinamite: A high-temperature metamorphic beryllosilicate from Lewisian sapphirine-bearing kyanite-orthopyroxene-quartz-potassium feldspar gneiss at South Harris, N.W. Scotland

Sotaro Baba, Edward S. Grew, Charles K. Shearer, John W. Sheraton
Published: 01 October 2000
American Mineralogist (2000) 85 (10): 1474–1484.
DOI: https://doi.org/10.2138/am-2000-1017
...Sotaro Baba; Edward S. Grew; Charles K. Shearer; John W. Sheraton Abstract The sapphirine-like mineral surinamite, (Mg,Fe 2+ ) 3 (Al,Fe 3+ ) 3 O[AlBeSi 3 O 15 ], occurs at South Harris as tiny grains enclosed in kyanite or as tabular grains up to 1 mm long mostly surrounded by Si-rich cordierite...
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Crystal structures of sapphirine and surinamite analogues in the MgO-Ga- 2 O 3 -GeO 2 system

Jacques Barbier
Published: 01 December 1998
European Journal of Mineralogy (1998) 10 (6): 1283–1293.
...Jacques Barbier Abstract Single crystals of the sapphirine and surinamite analogues in the MgO - Ga2O 3 - GeO 2 system have been grown from potassium molybdate fluxes. Their crystal structures and cation distributions have been determined by X-ray diffraction. Sapphirine, Mg (sub 8.9) Ga (sub 14.2...
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Journal Article

Surinamite in pseudomorphs after cordierite in polymetamorphic granulites from Zambia

Emond W. F. de Roever, Stanislav Vrana
Published: 01 August 1985
American Mineralogist (1985) 70 (7-8): 710–713.
...Emond W. F. de Roever; Stanislav Vrana Abstract The rare Be–Mg–Al silicate surinamite occurs in biotite–kyanite±garnet pseudomorphs after—apparently beryllian—cordierite in granulites from E Zambia. The surinamite-bearing assemblage was formed by a relatively high-pressure regional metamorphism...
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Journal Article

Surinamite, ca. Mg 3 Al 4 Si 3 BeO 16 ; its crystal structure and relation to sapphirine, ca. Mg (sub 2.8) Al (sub 7.2) Si (sub 1.2) O 16

Paul B. Moore, Takaharu Araki
Published: 01 August 1983
American Mineralogist (1983) 68 (7-8): 804–810.
...Paul B. Moore; Takaharu Araki Abstract Surinamite is monoclinic, space group P 2/ n , with a = 9.916(1), b = 11.384(1), c = 9.631(1)Å, β = 109.30(1)°. The asymmetric unit contains ca . Mg 3 Al 4 Si 3 BeO 16 comprised of nine octahedral cations and five tetrahedral cations incorporated in a cubic...
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Surinamite, taaffeite, and beryllian sapphirine from pegmatites in granulite-facies rocks of Casey Bay, Enderby Land, Antarctica

Edward S. Grew
Published: 01 October 1981
American Mineralogist (1981) 66 (9-10): 1022–1033.
..., Antarctica. Antarctic surinamite contains 30.9–32.1 wt.% SiO 2 , 33.7–37.3 wt.% Al 2 O 3 , 9.1–13.4 wt.% FeO, 0.01–0.2 wt.% MnO, and 16.4–18.4 wt.% MgO, 0.5–1 wt.% Be, and 0.66±0.2 wt.% H 2 O. Assuming water is absent, a constant BeO content of 3.5 wt.%, and possible Fe 3+ for Al substitution, surinamite...
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Surinamite, a new Mg-Al silicate from the Bakhuis Mountains, western Surinam; I, Description, occurrence, and conditions of formation

E. W. F. de Roever, C. Kieft, E. Murray, E. Klein, W. H. Drucker
Published: 01 April 1976
American Mineralogist (1976) 61 (3-4): 193–197.
...E. W. F. de Roever; C. Kieft; E. Murray; E. Klein; W. H. Drucker Abstract Surinamite, (Al 1.38 Mg 1.12 Fe 0.46 Mn 0.04 ) VI (Si 1.51 Al 0.49 )O 7.36 (OH) 0.64 , is monoclinic, P 2 1 / a ; a = 9.64, b = 11.36, c = 4.95 Å, β = 109,0°, V = 512.5 Å 3 , Z = 4, ρ calc = 3.58; strongest powder lines...
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Photomicrographs of <span class="search-highlight">surinamite</span> in specimen no. 96820-sp1 ( a ) Orthopyroxen...

Photomicrographs of surinamite in specimen no. 96820-sp1 ( a ) Orthopyroxen...

Published: 01 October 2000
F igure 2. Photomicrographs of surinamite in specimen no. 96820-sp1 ( a ) Orthopyroxene (Opx) and sillimanite (Sil) are enclosed by surinamite (Sur), which was partially replaced by corona of secondary cordierite (Crd); these minerals are surrounded by quartz matrix (Qtz). ( b ) Surinamite
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Schematic and hypothetical pressure-composition section for the system suri...

Schematic and hypothetical pressure-composition section for the system suri...

Published: 01 January 2002
Figure 7. Schematic and hypothetical pressure-composition section for the system surinamite–Fe 2+ analogue of surinamite modified from Hölscher et al. (1986 , Fig. 13a ) with compositions of a surinamite-garnet pair (+ chrysoberyl) from “Zircon Point”, Khmara Bay, Antarctica ( Grew 1981
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( a ) Tetrahedral representation of the chain in <span class="search-highlight">surinamite</span> , ( b ) a ball...

( a ) Tetrahedral representation of the chain in surinamite , ( b ) a ball...

Published: 26 February 2020
Fig. 91. ( a ) Tetrahedral representation of the chain in surinamite , ( b ) a ball-and-stick and ( c ) a graphical representation of the chain. The structure of surinamite projected ( d ) onto (001) and ( e ) along the a -axis. Dashed black lines outline geometrical and topological repeat
Journal Article

Synthesis of beryllian sapphirine in the system MgO-BeO-Al 2 O 3 -SiO 2 -H 2 O and comparison with naturally occurring beryllian sapphirine and khmaralite, Part 2: A chemographic study of Be content as a function of P , T, assemblage and FeMg –1 exchange

A.G. Christy, E.S. Grew
Published: 01 February 2004
American Mineralogist (2004) 89 (2-3): 327–338.
DOI: https://doi.org/10.2138/am-2004-2-311
... over the approximate range T = 700–900 °C, P = 0–2.5 GPa, identify divariant and univariant assemblages containing sapphirine with maximum Be, and determine the sense of variation of maximum Be content with P . At lower T, maximum Be occurs at the low- P limit of surinamite stability, ca. 0.5 GPa...
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Map of a portion of Lewisian Complex in South Harris showing localities for...

Map of a portion of Lewisian Complex in South Harris showing localities for...

Published: 01 October 2000
F igure 1. Map of a portion of Lewisian Complex in South Harris showing localities for surinamite-bearing gneiss. 1 = Leverburgh belt; 2 = Langavat belt; 3 = South Harris Igneous Complex; 4 = Migmatitic acid gneiss with granite and pegmatite. The star marks the locality of the surinamite
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Selected chains and ribbons from beryllate structures; ( a ) <span class="search-highlight">surinamite</span>; ( ...

Selected chains and ribbons from beryllate structures; ( a ) surinamite; ( ...

Published: 01 August 2014
F ig . 33. Selected chains and ribbons from beryllate structures; ( a ) surinamite; ( b ) sverigeite; ( c ) euclase; ( d ) bearsite; ( e ) fransoletite; ( f ) moraesite. Legend as in Fig. 32 .
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Crystal structure of <span class="search-highlight">surinamite</span>. Green tetrahedra: Si; yellow tetrahedra: A...

Crystal structure of surinamite. Green tetrahedra: Si; yellow tetrahedra: A...

Published: 01 August 2008
F ig . 5. Crystal structure of surinamite. Green tetrahedra: Si; yellow tetrahedra: Al; orange tetrahedra: Be.
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Part of the <span class="search-highlight">surinamite</span> structure viewed along the [103] direction, nearly p...

Part of the surinamite structure viewed along the [103] direction, nearly p...

Published: 01 April 2002
F igure 2. Part of the surinamite structure viewed along the [103] direction, nearly perpendicular to the ( a-b ) plane. Small number at the corners of the polyhedra refer to the oxygen positions.
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Polarized optical absorption spectra of <span class="search-highlight">surinamite</span> 12207.

Polarized optical absorption spectra of surinamite 12207.

Published: 01 April 2002
F igure 3. Polarized optical absorption spectra of surinamite 12207.
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Fitted Mössbauer spectra of <span class="search-highlight">surinamite</span> 12207 at room ( top ) and liquid ni...

Fitted Mössbauer spectra of surinamite 12207 at room ( top ) and liquid ni...

Published: 01 April 2002
F igure 5. Fitted Mössbauer spectra of surinamite 12207 at room ( top ) and liquid nitrogen ( bottom ) temperatures. The crosses represent error bars for each data point. The bold solid line shows the sum of the fitted sub-spectra. The thin solid and broken lines represent fitted quadrupole