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grandreefite

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Journal Article
Published: 01 February 1991
American Mineralogist (1991) 76 (1-2): 278–282.
...Anthony R. Kampf Abstract Grandreefite, Pb 2 F 2 SO 4 , has been determined to be monoclinic rather than orthorhombic as reported in its origrnal description. Its cell parameters are a = 8.667(1), b = 4.4419(6), c = 14.242(2) Å, β = 107.418(2)°( Z = 4) and the space group is A 2/ a . The crystal...
Journal Article
Published: 01 August 1989
American Mineralogist (1989) 74 (7-8): 927–933.
... are interpreted as resulting from the reaction of supergene solutions with galena and fluorite. Grandreefite, Pb 2 SO 4 F 2 , is orthorhombic, a = 4.439(4), b = 13.575(13), c = 4.333(4) Å, V = 261.1(4) Å 3 , space group I222 , Z = 2. It occurs as colorless prismatic crystals striated parallel to [001...
Image
The structure of sulfate minerals containing anion-centered tetrahedra: (a)...
Published: 01 January 2000
Figure 55. The structure of sulfate minerals containing anion-centered tetrahedra: (a) nabokoite; (b) dolerophanite; (c) grandreefite. The anion atoms in the centers of tetrahedra are shown as large unshaded circles.
Image
Comparison of the structures of Ba 2 F 2 (S 6+ O 3 S 2- ) (left) and grandr...
Published: 01 April 2009
F ig . 1. Comparison of the structures of Ba 2 F 2 (S 6+ O 3 S 2- ) (left) and grandreefite, Pb 2 F 2 SO 4 (right). Ba and Pb atoms are in blue, F in green, S in red and O in white.
Journal Article
Published: 01 April 2009
Mineralogical Magazine (2009) 73 (2): 251–255.
...F ig . 1. Comparison of the structures of Ba 2 F 2 (S 6+ O 3 S 2- ) (left) and grandreefite, Pb 2 F 2 SO 4 (right). Ba and Pb atoms are in blue, F in green, S in red and O in white. ...
FIGURES
Journal Article
Published: 01 July 2001
American Mineralogist (2001) 86 (7-8): 927–931.
... from the Grand Reef mine in the Aravaipa mining district of Graham County, Arizona; the others are grandreefite, pseudo-grandreefite, laurelite, artroeite, and calcioaravaipaite ( Kampf et al. 1989 ; Kampf and Foord 1995 ; Kampf and Foord 1996 ). The solution of the structure of grandreefite ( Kampf...
FIGURES
Journal Article
Published: 01 February 2011
American Mineralogist (2011) 96 (2-3): 402–407.
... . Kampf , A.R. ( 1991 ) Grandreefite, Pb 2 F 2 SO 4 : Crystal structure and relationship to the lanthanide oxide sulfates, Ln 2 O 2 SO 4 . American Mineralogist , 76 , 278 – 282 . Kampf , A.R. ( 2001 ) The crystal structure of aravaipaite . American Mineralogist , 86 , 927 – 931...
FIGURES
Journal Article
Published: 01 August 2011
European Journal of Mineralogy (2011) 23 (4): 695–700.
... at (¼, ¼, ¼). Fluorocronite is the natural . analogue of β-PbF 2 ( Koto et al. , 1980 ). The β-PbF 2 structural motif is found as layers in the minerals matlockite ( Pasero & Perchiazzi, 1996 ), grandreefite ( Kampf, 1991 ), pseudograndreefite ( Kampf et al. , 1989 ) and aravaipaite ( Kampf et al. , 1989 , 2011...
FIGURES
Journal Article
Published: 01 October 2012
Mineralogical Magazine (2012) 76 (5): 1247–1255.
... tetrahedra. The presence of fluorine in the crystal structure of rumseyite is confirmed by the Pb–(O/F) bond length of 2.41 Å. The mean bond length for ideal OPb 4 tetrahedra is 2.33 Å ( Krivovichev and Filatov, 1999 ). Anion-centred FPb 4 tetrahedra are present in grandreefite, Pb 2 F 2 (SO 4 ) ( Kampf...
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Journal Article
Published: 14 June 2023
Mineralogical Magazine (2023) 87 (5): 711–718.
... 4 tetrahedra are also present in the structure of grandreefite, Pb 2 (SO 4 )F 2 (Kampf, 1991 ). The average F–Pb bond length in its structure is 2.55 Å. Napoliite is a new representative ( Fig. 4a ) of a family of layered lead oxychlorides with lead oxide blocks derived from litharge PbO...
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Journal Article
Published: 01 August 2015
European Journal of Mineralogy (2015) 27 (4): 575–580.
..., sulphohalite Na 6 (SO 4 ) 2 FCl, galeite Na 15 (SO 4 ) 5 F 4 Cl, schairerite Na 21 (SO 4 ) 7 F 6 Cl, thermessaite K 2 (AlF 3 )(SO 4 ), thermessaite-(NH 4 ) (NH 4 ) 2 (AlF 3 )(SO 4 ), shuvalovite K 2 (Ca 2 Na)(SO 4 ) 3 F, krasheninnikovite KNa 2 CaMg (SO 4 ) 3 F, grandreefite Pb 2 (SO 4 )F 2...
FIGURES
Journal Article
Published: 01 February 2003
American Mineralogist (2003) 88 (2-3): 430–435.
... . Kampf , A.R. , Dunn , P.J. , and Foord , E.E. ( 1989 ) Grandreefite, pseudograndreefite, laurelite, and aravaipaite: four new minerals from the Grand Reef mine, Graham County, Arizona . American Mineralogist , 74 , 927 – 933 . Merlino , S. ( 1997 ) OD approach in minerals...
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Journal Article
Published: 01 October 2007
The Canadian Mineralogist (2007) 45 (5): 1307–1324.
..., chaidamuite, chukhrovite-(Ce), chukhrovite-(Y), creedite, efremovite, fibroferrite, grandreefite, hydronium jarosite, jarosite, johannite, khademite, ktenasite, mammothite, metasideronatrite, misenite, mooreite, natrojarosite, nickelblödite, piypite, plumbojarosite, posnjakite, redgillite, schairerite...
Journal Article
Published: 01 August 2010
American Mineralogist (2010) 95 (8-9): 1357–1361.
... calc = 4.419 g/cm 3 . The structure consists of layers of BaF 2 Ba parallel to (001) with alternate layers of thiosulfate groups, resulting in a sequence of (S 6+ O 3 S 2− )-BaF 2 Ba-(S 6+ O 3 S 2− ) in one unit cell. The structure is similar to grandreefite, Pb 2 F 2 SO 4 . P.C.P. S.V...
Journal Article
Published: 01 January 2000
Reviews in Mineralogy and Geochemistry (2000) 40 (1): 1–112.
...Figure 55. The structure of sulfate minerals containing anion-centered tetrahedra: (a) nabokoite; (b) dolerophanite; (c) grandreefite. The anion atoms in the centers of tetrahedra are shown as large unshaded circles. ...
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