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damaraite

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Journal Article
Published: 01 July 2001
European Journal of Mineralogy (2001) 13 (4): 801–809.
...Sergey V. KRIVOVICHEV; Peter C. BURNS Abstract The crystal structure of synthetic damaraite, Pb 3 O 2 (OH)Cl (orthorhombic, Pmc2 1 , a = 5.8052(7), b = 6.9025(8), c = 15.141(2) Å, V = 606.7(1) Å 3 has been solved by direct methods and refined to R1 = 0.039. The crystal structure of synthetic...
FIGURES
First thumbnail for: Crystal chemistry of lead oxide chlorides. I. Crys...
Second thumbnail for: Crystal chemistry of lead oxide chlorides. I. Crys...
Third thumbnail for: Crystal chemistry of lead oxide chlorides. I. Crys...
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Published: 01 July 2001
Table 7. Comparison of results of EMP analyses of damaraite specimens obtained by Criddle et al. (1990) with chemical composition of synthetic damaraite.
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Published: 01 July 2001
Table 1. Crystallographic data for synthetic mendipite and damaraite.
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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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Published: 01 July 2001
Table 5. Selected interatomic distances (Å) for synthetic damaraite, Pb 3 O 2 C1 2 .
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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.
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 .
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Published: 01 July 2001
Table 3. Atomic coordinates and displacement parameters (Å 2 × 10 3 ) for synthetic damaraite, Pb 3 O 2 (OH)Cl.
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Coordination of Pb atoms in mendipite and damaraite. Legend: Pb - small dark circles, Cl - large dark circles, O - large light circles.
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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Sheets of [O2Pb3] chains of (OPb4) tetrahedra and OH groups in damaraite (a), Pb6O4(OH)(CO3)(NO3) (b) and Pb3O2(OH)(NO3) (c).
Published: 01 July 2001
Fig. 4. Sheets of [O 2 Pb 3 ] chains of (OPb 4 ) tetrahedra and OH groups in damaraite (a), Pb 6 O 4 (OH)(CO 3 )(NO 3 ) (b) and Pb 3 O 2 (OH)(NO 3 ) (c).
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Oxo/hydroxocentred units in the structures of Pb oxy- and hydroxy-halide minerals and synthetic compounds: (a) Pb2O(OH)I (OPb4 tetrahedra = red, OHPb3 triangles = blue), (b) sidpietersite, (c) penfieldite and (d) damaraite.
Published: 01 December 2013
F ig . 5. Oxo/hydroxocentred units in the structures of Pb oxy- and hydroxy-halide minerals and synthetic compounds: ( a ) Pb 2 O(OH)I (OPb 4 tetrahedra = red, OHPb 3 triangles = blue), ( b ) sidpietersite, ( c ) penfieldite and ( d ) damaraite.
Journal Article
Published: 01 August 2012
Mineralogical Magazine (2012) 76 (4): 883–890.
..., damaraite, kombatite, sahlinite, copper, quartz, barysilite, Mn silicates and a number of Mn oxyhydroxide minerals on a specimen from the Kombat mine in Namibia. The minerals formed as late-stage products of hydrothermal reworking of primary sulfide minerals. Hereroite is monoclinic, C 2/ c with a = 23.14(1...
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First thumbnail for: Hereroite and vladkrivovichevite: two novel lead o...
Journal Article
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...
FIGURES
First thumbnail for: Pb 2 (AsO 2 OH)Cl 2 , a new phase from the Lavrion...
Second thumbnail for: Pb 2 (AsO 2 OH)Cl 2 , a new phase from the Lavrion...
Third thumbnail for: Pb 2 (AsO 2 OH)Cl 2 , a new phase from the Lavrion...
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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.
Published: 01 February 2012
) The mutually perpendicular arrangement in mendipite. ( e ) The zigzag arrangement in damaraite.
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[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.
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
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...
FIGURES
First thumbnail for: Crystal chemistry of lead oxide chlorides. II. Cry...
Second thumbnail for: Crystal chemistry of lead oxide chlorides. II. Cry...
Third thumbnail for: Crystal chemistry of lead oxide chlorides. II. Cry...
Journal Article
Published: 01 December 2013
Mineralogical Magazine (2013) 77 (8): 3239–3248.
...F ig . 5. Oxo/hydroxocentred units in the structures of Pb oxy- and hydroxy-halide minerals and synthetic compounds: ( a ) Pb 2 O(OH)I (OPb 4 tetrahedra = red, OHPb 3 triangles = blue), ( b ) sidpietersite, ( c ) penfieldite and ( d ) damaraite. ...
FIGURES
First thumbnail for: Crystal structure of a novel synthetic compound, P...
Second thumbnail for: Crystal structure of a novel synthetic compound, P...
Third thumbnail for: Crystal structure of a novel synthetic compound, P...
Journal Article
Published: 01 June 2008
Mineralogical Magazine (2008) 72 (3): 793–798.
... a ). In mendipite ( Krivovichev and Burns, 2001 ; Siidra et al. , 2008 b ), the chains extend along the b axis. They have two mutually perpendicular orientations and are linked through weak Pb–Cl bonds only. In contrast, in damaraite, the [O 2 Pb 3 ] 2+ chains are linked through OH groups to form [Pb 3 O 2...
FIGURES
First thumbnail for: Chloroxiphite Pb 3 CuO 2 (OH) 2 Cl 2 : structure r...
Second thumbnail for: Chloroxiphite Pb 3 CuO 2 (OH) 2 Cl 2 : structure r...
Third thumbnail for: Chloroxiphite Pb 3 CuO 2 (OH) 2 Cl 2 : structure r...
Journal Article
Published: 01 January 2002
American Mineralogist (2002) 87 (1): 181–184.
... data no further comparison is possible. J.L.J. P. Keller, F. Lissner, T. Schleid (2001) Damaraite, Pb 3 O 2 (OH)Cl: Crystal structure and new chemical formula. Neues Jahrb. Mineral. Mon., 326–336. Single-crystal X-ray structure study ( R = 0.0424) of a type crystal of damaraite gave...
Journal Article
Published: 01 June 2007
The Canadian Mineralogist (2007) 45 (3): 445–449.
... , T. ( 2001 ): Damaraite, Pb 3 O 2 (OH)Cl: crystal structure and new chemical formula . Neues Jahrb. Mineral., Monatsh ., 326 – 336 . Krivovichev , S.V. & Brown , I.D. ( 2001 ): Are the compressive effects of encapsulation an artifact of the bond valence parameters? Z...
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First thumbnail for: THE CRYSTAL STRUCTURE OF LENINGRADITE, PbCu 3 (VO ...
Second thumbnail for: THE CRYSTAL STRUCTURE OF LENINGRADITE, PbCu 3 (VO ...
Journal Article
Published: 01 February 2012
Mineralogical Magazine (2012) 76 (1): 59–73.
... ) The mutually perpendicular arrangement in mendipite. ( e ) The zigzag arrangement in damaraite. ...
FIGURES
First thumbnail for: Rickturnerite, Pb 7 O 4 [Mg(OH) 4 ](OH)Cl 3 , a co...
Second thumbnail for: Rickturnerite, Pb 7 O 4 [Mg(OH) 4 ](OH)Cl 3 , a co...
Third thumbnail for: Rickturnerite, Pb 7 O 4 [Mg(OH) 4 ](OH)Cl 3 , a co...