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hingganite

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Journal Article
Published: 01 September 2023
Mineralogical Magazine (2023) 87 (5): 738–740.
...Daniel Atencio Abstract Minasgeraisite-(Y) is discredited on the basis of it being an ordered intermediate between datolite and hingganite-(Y) (IMA-CNMNC Proposal 23-F). An idealised formula is (Ca 2 Y 2 )□ 2 (Be 2 B 2 )Si 4 O 16 (OH) 4 , which corresponds to Ca 2 □B 2 Si 2 O 8 (OH) 2 (datolite...
FIGURES
Journal Article
Published: 24 January 2022
Mineralogical Magazine (2022) 86 (4): 586–605.
... of hellandite-(Y) [(Ca,REE) 4 Y 2 Al□ 2 (B 4 Si 4 O 22 )(OH) 2 ] and hingganite-(Y) [Y 2 □Be 2 Si 2 O 8 (OH) 2 ] of ~1–5 μm, and rarely ≤10 μm in size. The localised occurrence of Y–B–Be silicates, which are associated closely with other secondary minerals, suggests the involvement of B and Be during...
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Journal Article
Published: 24 November 2020
The Canadian Mineralogist (2020) 58 (5): 549–562.
...Anatoly V. Kasatkin; Fabrizio Nestola; Radek Škoda; Nikita V. Chukanov; Atali A. Agakhanov; Dmitriy I. Belakovskiy; Arianna Lanza; Markéta Holá; Mike S. Rumsey ABSTRACT Hingganite-(Nd), ideally Nd 2 □Be 2 Si 2 O 8 (OH) 2 , is a new gadolinite group, gadolinite supergroup mineral discovered at Zagi...
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Journal Article
Published: 16 May 2019
The Canadian Mineralogist (2019) 57 (3): 371–382.
...Mark A. Cooper; Frank C. Hawthorne; Ritsuro Miyawaki; Roy Kristiansen Abstract The crystal structure of ‘Ca-hingganite-(Y)', triclinic P 1, a 9.863(4), b 7.602(3), c 4.762(2) Å, α 90.002(15), β 90.073(7), γ 90.020(5)°, V 357.1(5) Å 3 , Z = 1, has been refined to an R 1 index of 2.28% for 4186...
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Journal Article
Published: 01 December 2013
Mineralogical Magazine (2013) 77 (8): 3137–3153.
... by the decomposition of eudialyte in the agpaitic rocks, occurs as small rounded crystals rich in Ce (~63–74 wt.% CeO 2 ) and Y (6.03–11.69 wt.% Y 2 O 3 ). The presence of cerianite-(Ce) indicates formation in an evolving hydrothermal fluid in an oxidizing milieu. Hingganite-(Ce) is present in the miaskitic unit...
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Journal Article
Published: 01 February 2011
Mineralogical Magazine (2011) 75 (1): 159–167.
...J. Majka; J. Pršek; B. Budzyń; P. Bačík; A. K. Barker; M. Łodziński Abstract The pre-Caledonian NYF Skoddefjellet pegmatite in Wedel Jarlsberg Land, Svalbard, contains xenotime-(Y) that is partly replaced by fluorapatite-hingganite-(Y) reaction coronas. Hingganite-(Y) contains up to 2.0 wt.% of Gd...
FIGURES
Journal Article
Published: 01 February 2010
The Canadian Mineralogist (2010) 48 (1): 81–94.
... with hingganite in younger hydrothermal quartz – albite – chlorite veinlets, or as rim zones on monazite I. Monazite II is depleted in Th and U and has an unusually high content of S (≤11.3% SO 3 , 0.31 apfu S) and Sr (≤8.7% SrO, 0.18 apfu Sr). This composition indicates a (Ca,Sr)S(REE,Y) −1 P −1 substitution...
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Journal Article
Published: 01 August 2001
The Canadian Mineralogist (2001) 39 (4): 1105–1114.
... the Fe-poor and Ca-rich gadolinite-group minerals from Cuasso al Monte, Varese, Italy. These crystals can be ascribed to hingganite-(Y), with minor amounts of gadolinite (0.26–0.31 molar fraction) and datolite components (0.15–0.25 molar fraction) in solid solution. The component minasgeraisite-(Y...
FIGURES
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BSE photomicrographs of REE-Nb-Be minerals in the altered transsolvus grani...
Published: 01 May 2021
Fig. 10. BSE photomicrographs of REE-Nb-Be minerals in the altered transsolvus granite. (A) Hingganite-(Y) that occurs in association with aeschynite-(Y), ilmenite, ecandrewsite, and genthelvite, all of which are hosted in quartz. (B) Hingganite-(Y) and hingganite-(Ce), together with aeschynite
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COMPARATIVE DATA FOR <span class="search-highlight">HINGGANITE</span>-(Nd), <span class="search-highlight">HINGGANITE</span>-(Y), <span class="search-highlight">HINGGANITE</span>-(Yb), AND ...
Published: 24 November 2020
TABLE 6. COMPARATIVE DATA FOR HINGGANITE-(Nd), HINGGANITE-(Y), HINGGANITE-(Yb), AND HINGGANITE-(Ce)
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( a ) Large anhedral <span class="search-highlight">hingganite</span>-(Ce) in association with zircons and magnet...
Published: 01 December 2013
F ig . 7. ( a ) Large anhedral hingganite-(Ce) in association with zircons and magnetite in miaskitic gneiss. Note smaller euhedral crystals of hingganite-(Ce) present in isolation set within the albite matrix. ( b ) Hingganite-(Ce) replacing magmatic zircon in miaskitic gneiss. Such textural
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CHEMICAL COMPOSITION OF <span class="search-highlight">HINGGANITE</span>-(Nd) AND ASSOCIATED <span class="search-highlight">HINGGANITE</span>-(Y) (wt.%...
Published: 24 November 2020
TABLE 1. CHEMICAL COMPOSITION OF HINGGANITE-(Nd) AND ASSOCIATED HINGGANITE-(Y) (wt.%)
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( a ) Plot of compositions of minerals in the gadolinite–datolite group in ...
Published: 01 December 2013
F ig . 8. ( a ) Plot of compositions of minerals in the gadolinite–datolite group in terms of W ( REE +Y)/ W ( REE +Y+Ca) and X □/ X (□+Fe 2+ ) showing that the mineral from Sushina is hingganite which is compositionally similar to hingganite reported from the Cuasso al Monte (Italy) and Bacúch
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Dark greenish-brown prismatic crystal of <span class="search-highlight">hingganite</span>-(Nd) &#x2F; <span class="search-highlight">hingganite</span>-(Y).
Published: 24 November 2020
Fig. 2. Dark greenish-brown prismatic crystal of hingganite-(Nd) / hingganite-(Y).
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Representative chondrite-normalized REE patterns for (A) <span class="search-highlight">hingganite</span> and (B)...
Published: 01 November 2015
Fig. 9. Representative chondrite-normalized REE patterns for (A) hingganite and (B) fergusonite-(Y). Y is used as a proxy for Ho in (A). Normalizing factors from Sun & McDonough (1989) . (A) Patterns 1 and 2, hingganite-(Y); pattern 3, Nd-dominant hingganite; pattern 4, hingganite-(Ce
Journal Article
Published: 03 April 2023
American Mineralogist (2023) 108 (4): 754–768.
...-rich hingganite-(Y) show heterogeneous compositions and reflect a strong fractionation trend toward the enrichment of MREE (Sm to Dy), particularly Gd. Here, the gadolinium abundance reported in “monazite-(Gd)” (≤23.4 wt% Gd 2 O 3 ) and Gd-rich xenotime-(Y) to “xenotime-(Gd)” (≤28.7 wt% Gd 2 O 3...
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Fragment of the crystal pictured in  Figure 2 . The large <span class="search-highlight">hingganite</span>-(Nd) z...
Published: 24 November 2020
Fig. 3. Fragment of the crystal pictured in Figure 2 . The large hingganite-(Nd) zone is rimmed by hingganite-(Y). Polished section. SEM (BSE) image.
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Ternary and quarternary plots showing chemical variability of the holotype ...
Published: 24 November 2020
Fig. 6. Ternary and quarternary plots showing chemical variability of the holotype sample of hingganite-(Nd) with its associated overgrowth of slightly heterogenous hingganite-(Y).
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BSE images of selected textural relationships in Zone B. (A) Patchy intergr...
Published: 01 November 2015
of fergusonite-(Y) and REE-carbonates. The light-colored veins cutting the titanite-rutile pseudomorphs are REE-carbonate. (C) Crystal of fergusonite-(Y) in the (ferri)allanite zone, partly altered to fergusonite with higher Y and HREE contents, cerite-(Ce), hingganite-(Y), and Nd-dominant hingganite (Hgt
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Infrared absorption spectra of (a) <span class="search-highlight">hingganite</span>-(Nd), (b) Ca- and Fe-bearing ...
Published: 24 November 2020
Fig. 5. Infrared absorption spectra of (a) hingganite-(Nd), (b) Ca- and Fe-bearing hingganite-(Y) from Heftetjern, Norway, and (c) gadolinite-(Y) from Birkeland, Norway.