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![The crystal structures of mendipite (a) and damaraite (b) projected along the b and a axes, respectively. Legend as in Fig. 1.]()
![Coordination of Pb atoms in mendipite and damaraite. Legend: Pb - small dark circles, Cl - large dark circles, O - large light circles.]()
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![The arrangement of [O2Pb3]2+ chains in lead oxychloride minerals and inorganic compounds. (a) The quincunx arrangement in Pb7O4(OH)4X2 (X = Cl, Br). (b) Shifted [O2Pb3]2+ chains in chloroxiphite. (c) The parallel arrangement in rickturnerite. (d) The mutually perpendicular arrangement in mendipite. (e) The zigzag arrangement in damaraite.]()
![[O2Pb3] double chain of (OPb4) oxocentered tetrahedra shown in ball-and-stick (a) and polyhedral (b) representations. Connectivity diagrams for (OPb4) tetrahedra in mendipite (c) and damaraite (d, e) with O-Pb distances written near the corners, and usual OPb distances for such a tetrahedron in Pb oxide salts (f). The edges identified by semibold lines are common to two adjacent tetrahedra, whereas the corners designated by circles link the tetrahedron to another.]()
![First thumbnail for: Chloroxiphite Pb 3 CuO 2 (OH) 2 Cl 2 : structure r...]()
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![First thumbnail for: THE CRYSTAL STRUCTURE OF Pb 8 O 5 (OH) 2 Cl 4 , A ...]()
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Journal Article
Crystal chemistry of lead oxide chlorides. I. Crystal structures of synthetic mendipite, Pb 3 O 2 Cl 2 , and synthetic damaraite, Pb 3 O 2 (OH)Cl Available to Purchase
Journal: European Journal of Mineralogy
Publisher: GeoScienceWorld Journals
Published: 01 July 2001
European Journal of Mineralogy (2001) 13 (4): 801–809.
... mendipite, Pb 3 O 2 Cl 2 (orthorhombic, Pnma, a = 11.879(7), b = 5.808(4), c = 9.505(6) Å, V = 655.8(7) Å 3 ) has been refined to R1 = 0.049. Both structures are based on [O 2 Pb 3 ] double chains of edgesharing OPb 4 oxocentered tetrahedra that extend parallel to the a and b axes in damaraite...
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Journal Article
Yeomanite, Pb 2 O(OH)Cl, a new chain-structured Pb oxychloride from Merehead Quarry, Somerset, England Available to Purchase
Journal: Mineralogical Magazine
Published: 01 October 2015
Mineralogical Magazine (2015) 79 (5): 1203–1211.
... with mendipite, yeomanite appears to be formed of small, twisted, rope-like fibres growing from the end of columnar mendipite masses, forming loose mats and strands resembling asbestos. Individual fibres are generally <8 mm long, but exceptionally may reach up to 15 mm. There is a perfect cleavage parallel...
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Crystallographic data for synthetic mendipite and damaraite. Available to Purchase
in Crystal chemistry of lead oxide chlorides. I. Crystal structures of synthetic mendipite, Pb 3 O 2 Cl 2 , and synthetic damaraite, Pb 3 O 2 (OH)Cl
> European Journal of Mineralogy
Published: 01 July 2001
Table 1. Crystallographic data for synthetic mendipite and damaraite.
Image
Bond valence sums for Pb and O atoms in structures of synthetic mendipite a... Available to Purchase
in Crystal chemistry of lead oxide chlorides. I. Crystal structures of synthetic mendipite, Pb 3 O 2 Cl 2 , and synthetic damaraite, Pb 3 O 2 (OH)Cl
> European Journal of Mineralogy
Published: 01 July 2001
Table 6. Bond valence sums for Pb and O atoms in structures of synthetic mendipite and damaraite.
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Selected interatomic distances (Å) for synthetic mendipite, Pb 3 O 2 C1 2 ... Available to Purchase
in Crystal chemistry of lead oxide chlorides. I. Crystal structures of synthetic mendipite, Pb 3 O 2 Cl 2 , and synthetic damaraite, Pb 3 O 2 (OH)Cl
> European Journal of Mineralogy
Published: 01 July 2001
Table 4. Selected interatomic distances (Å) for synthetic mendipite, Pb 3 O 2 C1 2 .
Image
The crystal structures of mendipite (a) and damaraite (b) projected along t... Available to Purchase
in Crystal chemistry of lead oxide chlorides. I. Crystal structures of synthetic mendipite, Pb 3 O 2 Cl 2 , and synthetic damaraite, Pb 3 O 2 (OH)Cl
> European Journal of Mineralogy
Published: 01 July 2001
Fig. 3. The crystal structures of mendipite (a) and damaraite (b) projected along the b and a axes, respectively. Legend as in Fig. 1 .
Image
Coordination of Pb atoms in mendipite and damaraite. Legend: Pb - small dar... Available to Purchase
in Crystal chemistry of lead oxide chlorides. I. Crystal structures of synthetic mendipite, Pb 3 O 2 Cl 2 , and synthetic damaraite, Pb 3 O 2 (OH)Cl
> European Journal of Mineralogy
Published: 01 July 2001
Fig. 1. Coordination of Pb atoms in mendipite and damaraite. Legend: Pb - small dark circles, Cl - large dark circles, O - large light circles.
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Atomic coordinates and displacement parameters (Å 2 × 10 3 ) for syntheti... Available to Purchase
in Crystal chemistry of lead oxide chlorides. I. Crystal structures of synthetic mendipite, Pb 3 O 2 Cl 2 , and synthetic damaraite, Pb 3 O 2 (OH)Cl
> European Journal of Mineralogy
Published: 01 July 2001
Table 2. Atomic coordinates and displacement parameters (Å 2 × 10 3 ) for synthetic mendipite, Pb 3 O 2 Cl 2 .
Journal Article
Pb 2 (AsO 2 OH)Cl 2 , a new phase from the Lavrion ancient slags, Greece: occurrence and characterization Available to Purchase
Journal: Mineralogical Magazine
Published: 01 June 2012
Mineralogical Magazine (2012) 76 (3): 597–602.
... is closely related to that of Pb oxysalt minerals containing [O 2 Pb 3 ] 2+ chains of oxocentred [OPb 4 ] 6+ tetrahedra including mendipite, damaraite, rickturnerite and plumboselite. The infrared (IR) spectrum was collected using a double-beam technique. A sample was pulverized, mixed with anhydrous...
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Journal Article
A mechanism for the formation of the mineralized Mn deposits at Merehead Quarry, Cranmore, Somerset, England Available to Purchase
Journal: Mineralogical Magazine
Published: 01 December 2006
Mineralogical Magazine (2006) 70 (6): 629–653.
... and celestine. However, the ‘Number One’ vein exposed in the 1970s was dominated by mendipite, one of the Pb oxychloride minerals for which Merehead is so famous. Most cavities contain a layer of calcite ‘lining’ the cavity immediately adjacent to the Mn oxides. mereheadite Mn deposits oxychloride...
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![The arrangement of [O2Pb3]2+ chains in lead oxychloride minerals and inorganic compounds. (a) The quincunx arrangement in Pb7O4(OH)4X2 (X = Cl, Br). (b) Shifted [O2Pb3]2+ chains in chloroxiphite. (c) The parallel arrangement in rickturnerite. (d) The mutually perpendicular arrangement in mendipite. (e) The zigzag arrangement in damaraite.](https://gsw.silverchair-cdn.com/gsw/Content_public/Journal/minmag/76/1/10.1180_minmag.2012.076.1.59/5/s_05-rum-08.jpeg?Expires=2147483647&Signature=tE-U2OEG~HD-d8fspi~Je6NSlDkDvHlEPiOq4PdPFET8lF1nhvO7ppAfcbsGMQXpmKqlEsr8B0e-zt6Sc~u3wWawxImaUhqXLNLCAkfi9W1xrgjVKNqJ68xdAxtekRWW5EASHZ~~7KSiqXEJmC3lxmrf08bF05xMLhbltiM5mFdTFMUsns2qADvvF53bt9W1gyj4i2LjDGmYUi4TefgSAaxYICzGu-Nx7tAc7zUlM2Cq~Hq80m34UdUtMWRhyTwexR9uYFoRERQDgySkCnybCI6-fXwNSZ~fnrquIXOGEsjmwKf-0kKWQUBCG0yIlmOHj9HGjx4l8Pn2NlD6IKPpYA__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA)
The arrangement of [O 2 Pb 3 ] 2+ chains in lead oxychloride minerals and ... Available to Purchase
in Rickturnerite, Pb 7 O 4 [Mg(OH) 4 ](OH)Cl 3 , a complex new lead oxychloride mineral
> Mineralogical Magazine
Published: 01 February 2012
) The mutually perpendicular arrangement in mendipite. ( e ) The zigzag arrangement in damaraite.
Image
![[O2Pb3] double chain of (OPb4) oxocentered tetrahedra shown in ball-and-stick (a) and polyhedral (b) representations. Connectivity diagrams for (OPb4) tetrahedra in mendipite (c) and damaraite (d, e) with O-Pb distances written near the corners, and usual OPb distances for such a tetrahedron in Pb oxide salts (f). The edges identified by semibold lines are common to two adjacent tetrahedra, whereas the corners designated by circles link the tetrahedron to another.](https://gsw.silverchair-cdn.com/gsw/Content_public/Journal/eurjmin/13/4/10.1127_0935-1221_2001_0013-0801/3/s_801fig2.jpeg?Expires=2147483647&Signature=pZgGvRRxQ7Aav4qIDOXW5GjCBWZFgl7kKCUB8pl9~aqickYXPgIYxFSAml6Oh3spCq~OeNCN1URqauP8p4PD2FHTpiEcO9kWc57r7T6PH6svYL1gp3o-o~MNPwHdOSWXdWKMnYwLZmy~VIjewE9Oo6YkYb67M~keF5zt6612gQo~0cWyYw5chl7SqKcwoNc9a31OK1WndK7QWgWx3IDR3OMmquvbp5B9usGyynj6CAf~JixhxALFOx2ddvLJznDaAJuIXQO~M2eaS~GoI0dSe~F6bNONxvnYpkxiHPYBNmn0W1lctg3pXV-TT4~JYVlvwKXXIpN1jtZyKSyRX~QVPA__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA)
[O 2 Pb 3 ] double chain of (OPb 4 ) oxocentered tetrahedra shown in ball-a... Available to Purchase
in Crystal chemistry of lead oxide chlorides. I. Crystal structures of synthetic mendipite, Pb 3 O 2 Cl 2 , and synthetic damaraite, Pb 3 O 2 (OH)Cl
> European Journal of Mineralogy
Published: 01 July 2001
Fig. 2. [O 2 Pb 3 ] double chain of (OPb 4 ) oxocentered tetrahedra shown in ball-and-stick (a) and polyhedral (b) representations. Connectivity diagrams for (OPb 4 ) tetrahedra in mendipite (c) and damaraite (d, e) with O-Pb distances written near the corners, and usual OPb distances
Journal Article
Chloroxiphite Pb 3 CuO 2 (OH) 2 Cl 2 : structure refinement and description in terms of oxocentred OPb 4 tetrahedra Available to Purchase
Journal: Mineralogical Magazine
Published: 01 June 2008
Mineralogical Magazine (2008) 72 (3): 793–798.
... crystals of chloroxiphite embedded entirely in mendipite which in turn fills a calcite-lined cavity in a manganese-oxide matrix. This paragenesis was described previously ( Symes and Embrey, 1977 ; Turner, 2006 ). T able 3. Selected bond lengths (Å) in the structure of chloroxiphite...
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Journal Article
Crystal chemistry of lead oxide chlorides. II. Crystal structure of Pb 7 O 4 (OH) 4 Cl 2 Available to Purchase
Journal: European Journal of Mineralogy
Publisher: GeoScienceWorld Journals
Published: 01 January 2002
European Journal of Mineralogy (2002) 14 (1): 135–139.
... ] double chains of (OPb 4 ) oxocentered tetrahedra [see Krivovichev & Burns (2001a) for more details]. Amongst lead oxide chlorides, these chains have been previously observed in damaraite and mendipite ( Keller et al. , 2000 , 2001 ; Pasero & Vacchiano, 2000 ; Krivovichev & Burns, 2001a...
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Journal Article
Rickturnerite, Pb 7 O 4 [Mg(OH) 4 ](OH)Cl 3 , a complex new lead oxychloride mineral Available to Purchase
Journal: Mineralogical Magazine
Published: 01 February 2012
Mineralogical Magazine (2012) 76 (1): 59–73.
... ) The mutually perpendicular arrangement in mendipite. ( e ) The zigzag arrangement in damaraite. ...
FIGURES
Cl 3 , a co...](https://gsw.silverchair-cdn.com/gsw/Content_public/Journal/minmag/76/1/10.1180_minmag.2012.076.1.59/5/s_05-rum-01.jpeg?Expires=1755449358&Signature=D7Ddg4WmhuVdRtd99Rh-cNixtZfvr5dtV8PaL0NaUaf0wl5LTODdmGJcw00apUiem5LIZm3D3AUgG1IhW-BaUj88pAm~gc87R~NIRd1UfoedZ69AKdI6xjySgOtoPGF7~Q0pP-MFCqz4TO9XTVetoeqWYnuCNCgZDM0C0mbO8S9Yg4gQ8yd9nR56mn5CPOsYC~I4g05iACsL6qyx5RxCwCm5JTOd4FrL9bw8iQtp4g1cL0-dPf2~UKYhwNF4UYCZozdc00MWuAxBw45n-0B~zaZXMCuazepEYT24KNdyPewbw0ztnxYXnXk34bDpWUFx~ZQsdrGxhk3wGjo-TDTPNg__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA)
Cl 3 , a co...](https://gsw.silverchair-cdn.com/gsw/Content_public/Journal/minmag/76/1/10.1180_minmag.2012.076.1.59/5/s_05-rum-02.jpeg?Expires=1755449358&Signature=vaklSoi4SMUxEvuryuaA6mHTDnK9GtSci67hiMKBCG4STJ9pJDLy5Ol4GKDdM8gT9PUDLPV3nRmUaEO7hRlLx9DCJafCBApUyT7KY15fat-UBVg6brXpe-H2UbY7xWPMvUS1mbxxhMdB4Ql4nHn36gl1FCi9nm925KDvXKxV9zdqsxUHNzCuGIYFLcUhR3vartgiUqhUCwA8dAsSDVEbi6KX1HKCkTtIHpqYdmxICNrGvI8E~2MptcS-8bWttOevNMbC7qRTIHrI8F6UzHww3lCizZ0V9wzxWyRF0KffElvl3BswIhMgM54Xmky4U3OXxukVxCWYj~Rqc7CgXevAOQ__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA)
Cl 3 , a co...](https://gsw.silverchair-cdn.com/gsw/Content_public/Journal/minmag/76/1/10.1180_minmag.2012.076.1.59/5/s_05-rum-03.jpeg?Expires=1755449358&Signature=SyKpsbMIdIH08V6R7yytHMxJuyEVVs4S6FE0AdDJwU5EIYu05VWFBcpkJwD39IHD1f4lqfHK5R7KsJuC~S4ZU5gGZ8s1XVoUdVfLToKcNm3FM92HyRnY7Z6mv6fvCoftJ1d7MXqZcvTaWumFQwlRacdb4lKLvlFTZoPyAVm3L0NFVLqQe31LgcH30GZKgP-batX5yXkXYx-7o2uWwnrDnYpTkwDYajFtRTsqiCLNE~QbhNVJK4--MsGsruBCOmTpJJCB5Dz7aI-3JaVMhke6GMjKJDNgaqQdvDJNd8e0KmsGxLSeZYKyDWlEBurGyK8p6o4cvcZZO6xb~8XUHuzdpA__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA)
Journal Article
THE CRYSTAL STRUCTURE OF Pb 8 O 5 (OH) 2 Cl 4 , A SYNTHETIC ANALOGUE OF BLIXITE? Available to Purchase
Journal: The Canadian Mineralogist
Publisher: Mineralogical Association of Canada
Published: 01 April 2006
The Canadian Mineralogist (2006) 44 (2): 515–522.
... with the formula Pb 2 Cl(O,OH) 2− x ( x ~ 0.3), was first described by Gabrielson et al . (1960) from Langban, Sweden. Later, it was reported from Mendip Hills, England ( Symes & Embrey 1977 ), and Elura, New South Wales, Australia ( Scott 1994 ), in intimate association with mendipite. Welch et al...
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Journal Article
The crystal structure and chemistry of mereheadite Available to Purchase
Journal: Mineralogical Magazine
Published: 01 February 2009
Mineralogical Magazine (2009) 73 (1): 103–117.
... and tetragonal X sheets of halide ions ( X = Cl, Br, I). See text for details. The phases Pb 4 O 2 (OH) 2 (SO 4 ) and Pb 5 O 4 (SO 4 ) form during the production of lead-acid batteries ( Steele et al ., 1997 ; Steele and Pluth, 1998 ). Post and Buseck ( 1985 ) identified mendipite-related...
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Journal Article
THE CRYSTAL STRUCTURE OF LENINGRADITE, PbCu 3 (VO 4 ) 2 Cl 2 Available to Purchase
Journal: The Canadian Mineralogist
Publisher: Mineralogical Association of Canada
Published: 01 June 2007
The Canadian Mineralogist (2007) 45 (3): 445–449.
.... Kristallogr . 216 , 245 – 247 . Krivovichev , S.V. & Burns , P.C. ( 2001 ): Crystal chemistry of lead oxide chlorides. I. Crystal structures of synthetic mendipite, Pb 3 O 2 Cl 2 , and synthetic damaraite, Pb 3 O 2 (OH)Cl . Eur. J. Mineral . 13 , 801 – 809 . Krivovichev , S.V...
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Journal Article
THE CRYSTAL STRUCTURE OF ALLOCHALCOSELITE, Cu + Cu 2+ 5 PbO 2 (SeO 3 ) 2 Cl 5 , A MINERAL WITH WELL-DEFINED Cu + AND Cu 2+ POSITIONS Available to Purchase
Journal: The Canadian Mineralogist
Publisher: Mineralogical Association of Canada
Published: 01 April 2006
The Canadian Mineralogist (2006) 44 (2): 507–514.
.... & Burns , P.C. ( 2001 ): Crystal chemistry of lead oxide chlorides. I. Crystal structures of synthetic mendipite, Pb 3 O 2 Cl 2 , and synthetic damaraite, Pb 3 O 2 (OH)Cl . Eur. J. Mineral . 13 , 801 – 809 . Krivovichev , S.V. & Burns , P.C. ( 2002 ): Crystal chemistry of lead...
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Journal Article
Robert Frederick Symes (1939–2016) Available to Purchase
Journal: Mineralogical Magazine
Published: 01 June 2016
Mineralogical Magazine (2016) 80 (4): 701–704.
.... ( 1977 ) Mendipite and other rare oxychloride minerals from the Mendip Hills, Somerset, England . Mineralogical Record , 8 , 298 – 303 . Symes , R.F. and Young , B. ( 2008 ) Minerals of Northern England. National Museums Scotland, Edinburgh and the Natural History Museum , London...
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