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ancylite

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Journal Article

Gysinite-(Ce), PbCe(CO 3 ) 2 (OH)(H 2 O), a New Member of the Ancylite Group

Anthony R. Kampf, Gerhard Möhn, Chi Ma, Joy Désor, Manfred Groß
Published: 18 December 2024
The Canadian Journal of Mineralogy and Petrology (2024) 62 (6): 863–870.
DOI: https://doi.org/10.3749/2400015
..., Pmcn , a = 5.0780(4), b = 8.6689(6), c = 7.3255(6) Å, V = 322.47(4) Å 3 , and Z = 2. Gysinite-(Ce) is isostructural with gysinite-(La), gysinite-(Nd), and other members of the ancylite group. The crystal structure ( R 1 = 0.0268 for 396 I > 2σ I ) is a framework consisting of edge-sharing (PbCe)O 8...
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Calcioancylite-(La), (La,Ca) 2 (CO 3 ) 2 (OH,H 2 O) 2 , a new member of the ancylite group from Gejiu nepheline syenite, Yunnan Province, China

Yanjuan Wang, Xiangping Gu, Guochen Dong, Zengqian Hou, Fabrizio Nestola, Zhusen Yang, Guang Fan, Yufei Wang, Kai Qu
Published: 19 April 2023
Mineralogical Magazine (2023) 87 (4): 554–560.
DOI: https://doi.org/10.1180/mgm.2023.28
... member of ancylite-group minerals. The mineral and its name have been approved by the Commission on New Minerals, Nomenclature and Classification of the International Mineralogical Association (IMA2021-090). Corresponding author: Guochen Dong; Email: [email protected] Associate Editor...
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Gysinite-(La), PbLa(CO 3 ) 2 (OH)⋅H 2 O, a new rare earth mineral of the ancylite group from the Saima alkaline complex, Liaoning Province, China

Bin Wu, Xiang-ping Gu, Can Rao, Ru-cheng Wang, Xing-qing Xing, Jian-jun Wan, Fu-jun Zhong, Christophe Bonnetti
Published: 21 November 2022
Mineralogical Magazine (2023) 87 (1): 143–150.
DOI: https://doi.org/10.1180/mgm.2022.126
.... It commonly occurs as subhedral to anhedral, granular and platy crystals of 5 to 50 μm in size, in interstices or enclosed in microcline, aegirine and nepheline. Associated minerals include nepheline, aegirine, microcline, natrolite, eudialyte, lamprophyllite, bastnäsite-(Ce), parasite-(Ce), ancylite-(La...
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Calcio-ancylite-(ND), a new REE-carbonate from Baveno, Italy

P. Orlandi, M. Pasero, G. Vezzalini
Published: 01 January 1990
European Journal of Mineralogy (1990) 2 (3): 413–418.
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Gysinite, Pb(Nd,La)(CO 3 ) 2 (OH) · H 2 O, a new lead, rare-earth carbonate from Shinkolobwe, Shaba, Zaire and its relationship to ancylite

Halil Sarp, Jean Bertrand
Published: 01 December 1985
American Mineralogist (1985) 70 (11-12): 1314–1317.
...: c ratio is 0.5929:1:0.8529. The calculated density is 4.82 g/cm 3 . X-ray diffraction data are similar to those of ancylite. The mineral is biaxial negative with 2 V x = 70°, 2 V calc = 72.4°, α = 1.745, β = 1.805, γ = 1.840, dispersion r < ν . Optical orientation: X = c , Y = a , Z = b...
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The crystal structure of ancylite,(RE) x ,(Ca,Sr) 2-x (CO 3 ) 2 (OH) x (2-x)H 2 O

Alberto Dal Negro, Giuseppe Rossi, Vittorio Tazzoli
Published: 01 April 1975
American Mineralogist (1975) 60 (3-4): 280–284.
...Alberto Dal Negro; Giuseppe Rossi; Vittorio Tazzoli Abstract The crystal structure of ancylite (La,Ce) 1.38 (Sr,Ca) 0.62 (CO 3 ) 2 (OH) 1.38 ·0.62H 2 O, a = 5.03, a = 8.53, c = 7.29 Å, space group Pmcn, Z = 2, has been determined by Patterson and Fourier methods, using 502 intensities measured...
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Bipyramidal zoned crystal of <span class="search-highlight">ancylite</span>-(Ce) – calcio-<span class="search-highlight">ancylite</span>-(Ce) from a pe...

Bipyramidal zoned crystal of ancylite-(Ce) – calcio-ancylite-(Ce) from a pe...

Published: 01 February 2002
F ig . 3. Bipyramidal zoned crystal of ancylite-(Ce) – calcio-ancylite-(Ce) from a perovskite–titanite segregation in CAPR. Vertical dimension of the crystal: 850 μm.
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REPRESENTATIVE COMPOSITIONS OF <span class="search-highlight">ANCYLITE</span>-(Ce) AND CALCIO-<span class="search-highlight">ANCYLITE</span>-(Ce) FROM ...

REPRESENTATIVE COMPOSITIONS OF ANCYLITE-(Ce) AND CALCIO-ANCYLITE-(Ce) FROM ...

Published: 01 February 2002
TABLE 2. REPRESENTATIVE COMPOSITIONS OF ANCYLITE-(Ce) AND CALCIO-ANCYLITE-(Ce) FROM AFRIKANDA (WT.%)
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Pattern of zoning in a crystal of <span class="search-highlight">ancylite</span>-(Ce) – calcio-<span class="search-highlight">ancylite</span>-(Ce), wit...

Pattern of zoning in a crystal of ancylite-(Ce) – calcio-ancylite-(Ce), wit...

Published: 01 February 2002
F ig . 5. Pattern of zoning in a crystal of ancylite-(Ce) – calcio-ancylite-(Ce), with ancylite-(Ce) in the core and calcio-ancylite-(Ce) in the rim. BSE image. Scale bar: 150 μm.
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Compositional variation (wt.%) of <span class="search-highlight">ancylite</span>-(Ce) and calcio-<span class="search-highlight">ancylite</span>-(Ce): (...

Compositional variation (wt.%) of ancylite-(Ce) and calcio-ancylite-(Ce): (...

Published: 01 February 2002
F ig . 6. Compositional variation (wt.%) of ancylite-(Ce) and calcio-ancylite-(Ce): (a) CaO versus SrO, and (b) CaO + SrO versus REE 2 O 3 .
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<span class="search-highlight">Ancylite</span> textures and habits. A) Backscattered electron (BSE) image of a re...

Ancylite textures and habits. A) Backscattered electron (BSE) image of a re...

Published: 01 June 2022
Fig. 5. Ancylite textures and habits. A) Backscattered electron (BSE) image of a replaced hexagonal grain, exhibiting ancylite intergrown with strontianite and barite. B) BSE image of ancylite, barite, and strontianite intergrowth texture within a hexagonal pseudomorph. C) Subhedral ancylite
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Textural appearances of <span class="search-highlight">ancylite</span> and cordylite. ( a ) Heterogeneous <span class="search-highlight">ancylit</span>...

Textural appearances of ancylite and cordylite. ( a ) Heterogeneous ancylit...

Published: 01 June 2017
Figure 7. Textural appearances of ancylite and cordylite. ( a ) Heterogeneous ancylite needle with light parts reflecting intergrown baryte. The darkest parts reflect a high Ca, low Sr, and low REE contents and the medium light parts reflect a high Sr and low Ca content with a high concentration
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Textures of <span class="search-highlight">ancylite</span> and the SCRp mineral in moderately weathered carbonati...

Textures of ancylite and the SCRp mineral in moderately weathered carbonati...

Published: 01 June 2022
Fig. 10. Textures of ancylite and the SCRp mineral in moderately weathered carbonatite. A) Backscattered electron image of subhedral ancylite that is loosely bound to other minerals and contains iron oxide growing on mineral facets (at 133-m depth). B) Ancylite intergrown with and partially
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Backscattered electron (BSE) images of rare earth minerals. A) Strontianite...

Backscattered electron (BSE) images of rare earth minerals. A) Strontianite...

Published: 01 June 2022
Fig. 7. Backscattered electron (BSE) images of rare earth minerals. A) Strontianite replacement of rare earth element (REE)-fluorocarbonates and ancylite. B) Replacement of daqingshanite by SCRp in association with ancylite and strontianite within a rare earth pseudomorph. C) Evidence of SCRp
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Bear Lodge minerals. ( A ) <span class="search-highlight">Ancylite</span>–parisite–fluorite vein transecting sövi...

Bear Lodge minerals. ( A ) Ancylite–parisite–fluorite vein transecting sövi...

Published: 01 October 2012
F igure 4 Bear Lodge minerals. ( A ) Ancylite–parisite–fluorite vein transecting sövite (field of view = 40 mm). ( B ) Burbankite prisms in sövite (field of view = 4.4 mm). ( C ) Hexagonal pseudomorph with contained ancylite, carbocernaite, and strontianite in sövite (field of view = 1.8 mm
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Bear Lodge minerals. ( A ) <span class="search-highlight">Ancylite</span>–parisite–fluorite vein transecting sövi...

Bear Lodge minerals. ( A ) Ancylite–parisite–fluorite vein transecting sövi...

Published: 01 October 2012
F igure 4 Bear Lodge minerals. ( A ) Ancylite–parisite–fluorite vein transecting sövite (field of view = 40 mm). ( B ) Burbankite prisms in sövite (field of view = 4.4 mm). ( C ) Hexagonal pseudomorph with contained ancylite, carbocernaite, and strontianite in sövite (field of view = 1.8 mm
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Bear Lodge minerals. ( A ) <span class="search-highlight">Ancylite</span>–parisite–fluorite vein transecting sövi...

Bear Lodge minerals. ( A ) Ancylite–parisite–fluorite vein transecting sövi...

Published: 01 October 2012
F igure 4 Bear Lodge minerals. ( A ) Ancylite–parisite–fluorite vein transecting sövite (field of view = 40 mm). ( B ) Burbankite prisms in sövite (field of view = 4.4 mm). ( C ) Hexagonal pseudomorph with contained ancylite, carbocernaite, and strontianite in sövite (field of view = 1.8 mm
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Bear Lodge minerals. ( A ) <span class="search-highlight">Ancylite</span>–parisite–fluorite vein transecting sövi...

Bear Lodge minerals. ( A ) Ancylite–parisite–fluorite vein transecting sövi...

Published: 01 October 2012
F igure 4 Bear Lodge minerals. ( A ) Ancylite–parisite–fluorite vein transecting sövite (field of view = 40 mm). ( B ) Burbankite prisms in sövite (field of view = 4.4 mm). ( C ) Hexagonal pseudomorph with contained ancylite, carbocernaite, and strontianite in sövite (field of view = 1.8 mm
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A–F. Backscattered electron images of dolomite carbonatite. A. Cross sectio...

A–F. Backscattered electron images of dolomite carbonatite. A. Cross sectio...

Published: 01 January 2016
of a fracture infilled by barite that was later replaced by ancylite-(Ce) (Anc). Inset: Intergrowths of bastnäsite-(Ce) and parisite-(Ce) that replaced ancylite-(Ce). C. Cross section of a vein of dolomite 3 with inclusions of barite and cavity-lining cordylite-(Ce) (Cor) that was replaced by ancylite-(Ce) (Anc
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(a) Hexagonal polymineralic pseudomorphs after burbankite. Resorbed relict ...

(a) Hexagonal polymineralic pseudomorphs after burbankite. Resorbed relict ...

Published: 01 July 2021
Fig. 6. (a) Hexagonal polymineralic pseudomorphs after burbankite. Resorbed relict of burbankite (Brb) replaced by ancylite (Anc) and strontianite (Str). The pseudomorphs are associated with calcite (Cal), magnetite (Mgt), fluorite, phlogopite (Phl), fluorapatite (Ap), ankerite (Ank). BSE image