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pimelite

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Journal Article
Published: 01 April 1983
Clays and Clay Minerals (1983) 31 (2): 143–151.
Journal Article
Published: 01 June 1979
American Mineralogist (1979) 64 (5-6): 615–625.
...G. W. Brindley; D. L. Bish; H. M. Wan Abstract The term kerolite-pimelite series is used for a series of hydrous magnesium-nickel silicates with talc-like structure and composition but with additional water and with a highly disordered and non-swelling stacking of the layers. The layer spacing...
Image
Type IV (kerolite-<span class="search-highlight">pimelite</span>) as seen under the TEM (specimen LC-100B). ( a )...
Published: 01 June 2016
Figure 5 Type IV (kerolite-pimelite) as seen under the TEM (specimen LC-100B). ( a ) Image of the sample, the specimen was detached from the area in the red rectangle. ( b ) Detail of the hole in the grid under the optical microscope (plane-polarized light). ( c ) Low-magnification images
Journal Article
Published: 01 April 1966
American Mineralogist (1966) 51 (3-4_Part_1): 279–298.
...George T. Faust Abstract The hydrous nickel-magnesium silicates are one of the most poorly understood mineral groups. A principal member of this group was originally described by Professor Martin H. Klaproth in 1788 as “grüner Chrysopraserde”. He found this clay mineral, now called pimelite...
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Lippmann diagrams for solid solutions: (a) serpentine-népouite, (b) kerolit...
Published: 01 April 2012
Figure 2. Lippmann diagrams for solid solutions: (a) serpentine-népouite, (b) kerolite-pimelite, and (c) sepiolite-falcondoite. Diagrams show solidus, minimum stoichiometric saturation (MSS), and solutus curves (continuous lines). Dotted curves give the log ∑Π values corresponding to the two
Image
F ig  6. A. Photomicrographs of the peridotite from pit 1 showing serpentin...
Published: 01 September 2004
photomicrographs of the quartz (Qtz.)-pimelite (Pim.) veins found in the saprolitized peridotite in pit 1. E and F. Element map for Mg and Ni respectively carried out on a typical stockwork silicate vein. The major Ni-bearing phases are pimelite (Pim.) and Ni smectite. These maps clearly show the antipathetic
Journal Article
Published: 01 April 2009
European Journal of Mineralogy (2009) 21 (2): 467–483.
...) and electron-microprobe analyses. These conspicuously, green-coloured phases occur either as sub-mm to cm-sized veins or as macroscopic (sub-cm sized) “booklets”. Veins comprised ~ 10 Å (2:1) talc-like minerals identified as species of the Ni-kerolite/pimelite Ni for Mg solid solution series, with Ni contents...
FIGURES | View All (13)
Journal Article
Journal: Economic Geology
Published: 01 September 2004
Economic Geology (2004) 99 (6): 1197–1213.
... photomicrographs of the quartz (Qtz.)-pimelite (Pim.) veins found in the saprolitized peridotite in pit 1. E and F. Element map for Mg and Ni respectively carried out on a typical stockwork silicate vein. The major Ni-bearing phases are pimelite (Pim.) and Ni smectite. These maps clearly show the antipathetic...
FIGURES | View All (14)
Journal Article
Published: 01 June 2016
American Mineralogist (2016) 101 (6): 1460–1473.
...Figure 5 Type IV (kerolite-pimelite) as seen under the TEM (specimen LC-100B). ( a ) Image of the sample, the specimen was detached from the area in the red rectangle. ( b ) Detail of the hole in the grid under the optical microscope (plane-polarized light). ( c ) Low-magnification images...
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The mineralogy of the “garnierites” of New Caledonia (after  Brindley et al...
Published: 01 July 2003
FIGURE 5. The mineralogy of the “garnierites” of New Caledonia (after Brindley et al., 1979 ; Brindley, 1978 ; Trescases, 1986 ). These minerals can have compositions ranging from kerolite to pimelite (Mg, Ni talc-like minerals), and from serpentine to Ni-bearing serpentine (nepouite).
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Triangular diagram comparing AEM (circles, squares, and triangles) with pre...
Published: 01 June 2016
Figure 7 Triangular diagram comparing AEM (circles, squares, and triangles) with previous EMP (fields). Compositional fields from Villanova-de-Benavent et al. (2014a) . Abbreviations from Whitney and Evans (2010) except falcondoite (Fal), kerolite (Ker), pimelite (Pim), and pecoraite (Pec
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F ig  9. Microprobe analyses of aluminosilicate phases in the peridotite, s...
Published: 01 September 2004
F ig 9. Microprobe analyses of aluminosilicate phases in the peridotite, saprolitized peridotite, and green saprolite. On the basis of this diagram four major Ni-bearing phases are identified: pimelite, sepiolite, nimite, and Ni smectites. All phases show variable substitution of Mg by Ni (see
Journal Article
Journal: AAPG Bulletin
Published: 01 May 1952
AAPG Bulletin (1952) 36 (5): 884–886.
... then named bentonite ( Knight, 1898 ). Engelmann’s citations of bole and pimelite for comparison seem appropriate enough, in view of the stage of development of mineralogic thought in his time. In the contemporary edition of Dana’s System of Mineralogy (1854, pp. 252, 503) bole is defined as material...
Journal Article
Published: 01 September 2019
European Journal of Mineralogy (2019) 31 (5-6): 945–962.
...) minerals to the sequential leaching of Mg and Fe, together with their local replacement by Ni in octahedral sites of the newly formed TL minerals. The TL minerals are thus considered as the main Ni-bearing phases (pimelite) of the ore. The large-scale redistribution of Mg and Ni during a first period...
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Journal Article
Published: 01 April 2012
Clays and Clay Minerals (2012) 60 (2): 121–135.
...Figure 2. Lippmann diagrams for solid solutions: (a) serpentine-népouite, (b) kerolite-pimelite, and (c) sepiolite-falcondoite. Diagrams show solidus, minimum stoichiometric saturation (MSS), and solutus curves (continuous lines). Dotted curves give the log ∑Π values corresponding to the two...
FIGURES | View All (9)
Journal Article
Published: 01 October 2001
American Mineralogist (2001) 86 (10): 1143–1150.
..., or massive magnetite with subordinate amounts of apatite. Apatite may also be accompanied by silicate minerals, mainly chlorite and lesser amounts of serpentine, tremolite, and Ni-silicates (nepouite, pimelite), and by Ni-sulfides (pentlandite, violarite, heazlewoodite). The apatite-magnetite association...
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Journal Article
Journal: Economic Geology
Published: 01 August 1990
Economic Geology (1990) 85 (5): 1010–1023.
... and serpentinization of the pyroxenite and the location of the pyroxenite with respect to neighboring dunite. Within the Jacuba profile, smectite and pimelite pseudomorphs after pyroxene are especially Ni rich, and in fact, are the most Ni-enriched clay minerals now known in lateritic weathering profiles. GeoRef...
Journal Article
Published: 01 June 1985
American Mineralogist (1985) 70 (5-6): 549–558.
...Alain Manceau; Georges Calas Abstract Four nickel-bearing clay minerals from New-Caledonia belonging to the lizardite–nepouite and the kerolite–pimelite series have been investigated in order to study the mechanisms of Ni–Mg substitution. Local order around Ni was determined by optical absorption...
Journal Article
Published: 01 December 2006
Clays and Clay Minerals (2006) 54 (6): 653–666.
... ). The main trioctahedral Ni-bearing phyllosilicate formed in weathering profiles of ultrabasic rocks is disordered Ni-rich talc (pimelite according to Brindley and Maksimovic, 1974 ), which forms intimate mixtures with Ni-rich serpentine known as garnierites ( Brindley and Hang, 1973 ; Brindley et al...
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Projection of Caribbean garnierite ore compositions ( Proenza  et al. , 200...
Published: 01 April 2012
et al. , 1985 ) for garnierites from different Ni-laterite deposits, in a Si–Ni–Mg ternary diagram (at.%). The positions of the solid-solution series between Ni-sepiolite (Sep)-falcondoite (Fal), kerolite (Ker)-pimelite (Pim), and lizardite (Srp)-népouite (Nep) are also indicated.