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diegogattaite

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Journal Article

Diegogattaite, Na 2 CaCu 2 Si 8 O 20 ·H 2 O: a new nanoporous copper sheet silicate from Wessels Mine, Kalahari Manganese Fields, Republic of South Africa Available to Purchase

M. S. Rumsey, M. D. Welch, A. R. Kampf, J. Spratt
Published: 01 December 2013
Mineralogical Magazine (2013) 77 (8): 3155–3162.
DOI: https://doi.org/10.1180/minmag.2013.077.8.09
...M. S. Rumsey; M. D. Welch; A. R. Kampf; J. Spratt Abstract Diegogattaite (IMA2012-096), Na 2 CaCu 2 Si 8 O 20 ·H 2 O, is a new mineral from the Wessels mine in the Kalahari manganese fields of South Africa. It occurs as a minor phase with other copper-bearing silicates, Cu-rich pectolite, sugilite...
FIGURES
View PDF for article title, <span class="search-highlight">Diegogattaite</span>, Na 2 CaCu 2 Si 8 O 20 ·H 2 O: a new nanoporous copper sheet silicate from Wessels Mine, Kalahari Manganese Fields, Republic of South Africa
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(a) The net in diegogattaite; (b) the upper-layer sheet of tetrahedra in diegogattaite; (c) the 63 net, showing the edges (dotted lines) that must be deleted to form the net in (a); (d) the upper-layer sheet in diegogattaite viewed in cross-section; (e) the double-layer sheet of tetrahedra in diegogattaite viewed in cross-section. 3-connected tetrahedra are brown, 2-connected tetrahedra are yellow.

( a ) The net in diegogattaite ; ( b ) the upper-layer sheet of tetrahedra... Available to Purchase

Published: 01 December 2015
F ig . 39. ( a ) The net in diegogattaite ; ( b ) the upper-layer sheet of tetrahedra in diegogattaite ; ( c ) the 6 3 net, showing the edges (dotted lines) that must be deleted to form the net in ( a ); ( d ) the upper-layer sheet in diegogattaite viewed in cross-section; ( e ) the double
Image
Double-layer sheets with omitted tetrahedra: (a) the (6.14)2(6.142)4(142)2 net in diegogattaite; (b) the 63 net with deleted edges (broken lines) that results in the (6.14)2(6.142)4(142)2 net; (c,d) the upper-layer sheet of tetrahedra in diegogattaite; and (e) the double-layer sheet of tetrahedra in diegogattaite viewed in cross-section.

Double-layer sheets with omitted tetrahedra: ( a ) the (6.14) 2 (6.14 2 ) 4... Available to Purchase

Published: 01 February 2019
Fig. 51. Double-layer sheets with omitted tetrahedra: ( a ) the (6.14) 2 (6.14 2 ) 4 (14 2 ) 2 net in diegogattaite ; ( b ) the 6 3 net with deleted edges (broken lines) that results in the (6.14) 2 (6.14 2 ) 4 (14 2 ) 2 net; ( c , d ) the upper-layer sheet of tetrahedra in diegogattaite
Image
(a) The net of Si atoms in diegogattaite; (b) the net in (a) with the 2-connected Si atoms (= vertices) removed, showing that the 3-connected vertices form a 4.82 net; (c) insertion of 2-connected vertices into selected edges of the 4.82 net in (b), producing a net that is topologically identical to the diegogattaite net in (a). Legend as in Fig. 1, 2-connected vertices are indicated by yellow circles.

( a ) The net of Si atoms in diegogattaite ; ( b ) the net in ( a ) with t... Available to Purchase

Published: 01 December 2015
F ig . 38. ( a ) The net of Si atoms in diegogattaite ; ( b ) the net in ( a ) with the 2-connected Si atoms (= vertices) removed, showing that the 3-connected vertices form a 4.8 2 net; ( c ) insertion of 2-connected vertices into selected edges of the 4.8 2 net in ( b ), producing a net
Journal Article

Colinowensite, BaCuSi 2 O 6 , a new mineral from the Kalahari Manganese Field, South Africa and new data on wesselsite, SrCuSi 4 O 10 Available to Purchase

B. Rieck, H. Pristacz, G. Giester
Published: 01 December 2015
Mineralogical Magazine (2015) 79 (7): 1769–1778.
DOI: https://doi.org/10.1180/minmag.2015.079.7.04
...B. Rieck; H. Pristacz; G. Giester Abstract A new silicate, colinowensite, BaCuSi 2 O 6 , has been found in the Wessels mine, Kalahari Manganese Field, South Africa. It is associated with effenbergerite, wesselsite, lavinskyite, scottyite, diegogattaite, as well as with pectolite, quartz, aegirine...
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View PDF for article title, Colinowensite, BaCuSi 2 O 6 , a new mineral from the Kalahari Manganese Field, South Africa and new data on wesselsite, SrCuSi 4 O 10
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Journal Article

New Mineral Names, Free

Dmitriy Belakovskiy, Fernando Cámara, Yulia Uvarova, Olivier C. Gagne
Published: 01 August 2014
American Mineralogist (2014) 99 (8-9): 1806–1813.
DOI: https://doi.org/10.2138/am.2014.650
...Dmitriy Belakovskiy; Fernando Cámara; Yulia Uvarova; Olivier C. Gagne This New Mineral Names has entries for 13 new mineral species, including arsiccioite, bluelizardite, diegogattaite, disulfodadsonite, fabriesite, laachite, oskarssonite, philrothite, putnisite, therasiaite, trinepheline...
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Image
(a) Stereo-pair of the 6482 cage of diegogattaite projected onto (001). The two ½-occupied Na(1) sites 0.77 Å apart are shown in yellow. (b) Stereo-pair of the large H2O-containing cavity of diegogattaite: O = red, Si = dark blue, Ca = blue-grey, Cu = green, Na(2) = yellow. Oxygen atoms lying outside the cavity are omitted for clarity. The cavity is bisected by a mirror plane ||(010) in which the Na(2), O(12), H(1) and H(2) atoms lie. The view is slightly oblique, with the a axis being vertical, the b axis is almost in the plane of the paper and the c axis is rotated 5° to the left of the normal to the plane of the paper.

( a ) Stereo-pair of the 6 4 8 2 cage of diegogattaite projected onto (001... Available to Purchase

Published: 01 December 2013
F ig . 3. ( a ) Stereo-pair of the 6 4 8 2 cage of diegogattaite projected onto (001). The two ½-occupied Na(1) sites 0.77 Å apart are shown in yellow. ( b ) Stereo-pair of the large H 2 O-containing cavity of diegogattaite: O = red, Si = dark blue, Ca = blue-grey, Cu = green, Na(2) = yellow
Image
Upper diagram: A view of the silicate double sheet of diegogattaite projected onto (001) and showing the two equivalent sub-sheets coloured differently to aid visualization of its construction and identification of the 6482 cages, of which four are shown here. The pairs of yellow atoms are the ½-occupied Na(1) sites, and the purple atom is Na(3). Lower diagram: A view of the non-silicate sheet of diegogattaite, projected onto (001), showing CaO8, CuO5 and NaO5(H2O) polyhedra. Ca = blue, Cu = green, Na(2) = yellow, oxygen = red. A pair of edge-sharing CuO5 polyhedra forming a Cu2O8 dimer is circled at bottom-right. Four large cavities containing pairs of H2O molecules bonded to Na(2) atoms are shown.

Upper diagram : A view of the silicate double sheet of diegogattaite projec... Available to Purchase

Published: 01 December 2013
F ig . 2. Upper diagram : A view of the silicate double sheet of diegogattaite projected onto (001) and showing the two equivalent sub-sheets coloured differently to aid visualization of its construction and identification of the 6 4 8 2 cages, of which four are shown here. The pairs of yellow
Image
A portion of the hand specimen from which the holotype crystal was taken. The circled area encloses the main diegogattaite aggregate, showing that its slight ‘teal’ colour is very difficult to distinguish from the cobalt blue wesselsite. The image width is 10 cm.

A portion of the hand specimen from which the holotype crystal was taken. T... Available to Purchase

Published: 01 December 2013
F ig . 1. A portion of the hand specimen from which the holotype crystal was taken. The circled area encloses the main diegogattaite aggregate, showing that its slight ‘teal’ colour is very difficult to distinguish from the cobalt blue wesselsite. The image width is 10 cm.
Image

X-ray powder diffraction data for diegogattaite obtained by the Gandolfi me... Available to Purchase

Published: 01 December 2013
T able 2. X-ray powder diffraction data for diegogattaite obtained by the Gandolfi method using the same crystal as that used in the structure determination. I obs d obs d calc I calc h k l I obs d obs d calc I calc h k l I obs
Image

X-ray powder diffraction data for diegogattaite obtained by the Gandolfi me... Available to Purchase

Published: 01 December 2013
T able 2. X-ray powder diffraction data for diegogattaite obtained by the Gandolfi method using the same crystal as that used in the structure determination. I obs d obs d calc I calc h k l I obs d obs d calc I calc h k l I obs
Image

X-ray powder diffraction data for diegogattaite obtained by the Gandolfi me... Available to Purchase

Published: 01 December 2013
T able 2. X-ray powder diffraction data for diegogattaite obtained by the Gandolfi method using the same crystal as that used in the structure determination. I obs d obs d calc I calc h k l I obs d obs d calc I calc h k l I obs
Image

X-ray powder diffraction data for diegogattaite obtained by the Gandolfi me... Available to Purchase

Published: 01 December 2013
T able 2. X-ray powder diffraction data for diegogattaite obtained by the Gandolfi method using the same crystal as that used in the structure determination. I obs d obs d calc I calc h k l I obs d obs d calc I calc h k l I obs
Image

X-ray powder diffraction data for diegogattaite obtained by the Gandolfi me... Available to Purchase

Published: 01 December 2013
T able 2. X-ray powder diffraction data for diegogattaite obtained by the Gandolfi method using the same crystal as that used in the structure determination. I obs d obs d calc I calc h k l I obs d obs d calc I calc h k l I obs
Image

X-ray powder diffraction data for diegogattaite obtained by the Gandolfi me... Available to Purchase

Published: 01 December 2013
T able 2. X-ray powder diffraction data for diegogattaite obtained by the Gandolfi method using the same crystal as that used in the structure determination. I obs d obs d calc I calc h k l I obs d obs d calc I calc h k l I obs
Image

X-ray powder diffraction data for diegogattaite obtained by the Gandolfi me... Available to Purchase

Published: 01 December 2013
T able 2. X-ray powder diffraction data for diegogattaite obtained by the Gandolfi method using the same crystal as that used in the structure determination. I obs d obs d calc I calc h k l I obs d obs d calc I calc h k l I obs
Image

X-ray powder diffraction data for diegogattaite obtained by the Gandolfi me... Available to Purchase

Published: 01 December 2013
T able 2. X-ray powder diffraction data for diegogattaite obtained by the Gandolfi method using the same crystal as that used in the structure determination. I obs d obs d calc I calc h k l I obs d obs d calc I calc h k l I obs
Image

X-ray powder diffraction data for diegogattaite obtained by the Gandolfi me... Available to Purchase

Published: 01 December 2013
T able 2. X-ray powder diffraction data for diegogattaite obtained by the Gandolfi method using the same crystal as that used in the structure determination. I obs d obs d calc I calc h k l I obs d obs d calc I calc h k l I obs
Image

X-ray powder diffraction data for diegogattaite obtained by the Gandolfi me... Available to Purchase

Published: 01 December 2013
T able 2. X-ray powder diffraction data for diegogattaite obtained by the Gandolfi method using the same crystal as that used in the structure determination. I obs d obs d calc I calc h k l I obs d obs d calc I calc h k l I obs
Image

X-ray powder diffraction data for diegogattaite obtained by the Gandolfi me... Available to Purchase

Published: 01 December 2013
T able 2. X-ray powder diffraction data for diegogattaite obtained by the Gandolfi method using the same crystal as that used in the structure determination. I obs d obs d calc I calc h k l I obs d obs d calc I calc h k l I obs