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Finch, Adrian A. (1990) Genthelvite and willemite, zinc minerals associated with alkaline magmatism from the Motzfeldt centre, South Greenland. Mineralogical Magazine, 54 (376) 407-412 doi:10.1180/minmag.1990.054.376.05

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Reference TypeJournal (article/letter/editorial)
TitleGenthelvite and willemite, zinc minerals associated with alkaline magmatism from the Motzfeldt centre, South Greenland
JournalMineralogical MagazineISSN0026-461X
AuthorsFinch, Adrian A.Author
Year1990 (September)Volume54
Issue376
PublisherMineralogical Society
Download URLhttps://rruff.info/doclib/MinMag/Volume_54/54-376-407.pdf+
DOIdoi:10.1180/minmag.1990.054.376.05Search in ResearchGate
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Mindat Ref. ID1634Long-form Identifiermindat:1:5:1634:0
GUID0
Full ReferenceFinch, Adrian A. (1990) Genthelvite and willemite, zinc minerals associated with alkaline magmatism from the Motzfeldt centre, South Greenland. Mineralogical Magazine, 54 (376) 407-412 doi:10.1180/minmag.1990.054.376.05
Plain TextFinch, Adrian A. (1990) Genthelvite and willemite, zinc minerals associated with alkaline magmatism from the Motzfeldt centre, South Greenland. Mineralogical Magazine, 54 (376) 407-412 doi:10.1180/minmag.1990.054.376.05
In(1990, September) Mineralogical Magazine Vol. 54 (376) Mineralogical Society
Abstract/NotesAbstractTwo new occurrences of Zn-rich minerals are described from the SM6 lujavrite unit of the Motzfeldt alkaline centre, South Greenland. Zinc and beryllium complexes in the magma gave rise to the formation of interstitial grains of genthelvite (Zn4Be3Si3O12S), identified in samples by strong green cathodoluminescence. It is suggested that subsequent metasomatism leached Be from the genthelvite, giving rise to the formation of associated willemite (Zn2SiO4).

Map of Localities

Locality Pages

LocalityCitation Details
Motzfeldt Centre, Igaliku Complex, Kujalleq, Greenland
SM6 unit, Motzfeldt Centre, Igaliku Complex, Kujalleq, Greenland

Mineral Pages

MineralCitation Details
Genthelvite

Mineral Occurrences

LocalityMineral(s)
Motzfeldt Centre, Igaliku Complex, Kujalleq, Greenlandⓘ Fluorite, ⓘ Genthelvite, ⓘ Sodalite, ⓘ Willemite
SM6 unit, Motzfeldt Centre, Igaliku Complex, Kujalleq, Greenlandⓘ Genthelvite, ⓘ Lujavrite, ⓘ Willemite

See Also

These are possibly similar items as determined by title/reference text matching only.

Jones, A. P. (1984) Mafic silicates from the nepheline syenites of the Motzfeldt centre, South Greenland. Mineralogical Magazine, 48 (346) 1-12 doi:10.1180/minmag.1984.048.346.01
Finch, A. A., Goodenough, K. M., Salmon, H. M., Andersen, T. (2001) The petrology and petrogenesis of the North Motzfeldt Centre, Gardar Province, South Greenland. Mineralogical Magazine, 65 (6) 759-774 doi:10.1180/0026461016560007
Finch, Adrian A., Walker, F. David L. (1991) Cathodoluminescence and microporosity in alkali feldspars from the Blå Måne Sø perthosite, South Greenland. Mineralogical Magazine, 55 (381) 583-589 doi:10.1180/minmag.1991.055.381.11
Spencer, L. J. (1927) South African occurrences of willemite. Fluorescence of willemite and some other zinc minerals in ultra-violet rays. Mineralogical Magazine and Journal of the Mineralogical Society, 21 (119) 388-396 doi:10.1180/minmag.1927.021.119.04
Metcalf-Johansen, John (1977) Willemite from the Ilímaussaq alkaline Intrusion. Mineralogical Magazine, 41 (317) 71-75 doi:10.1180/minmag.1977.041.317.11
Pearce, N. J. G. (1990) Zirconium and niobium-bearing ilmenites from the Igaliko dyke swarm, South Greenland. Mineralogical Magazine, 54 (377) 585-588 doi:10.1180/minmag.1990.054.377.08
Andersen, Tom (1997) Age and petrogenesis of the Qassiarsuk carbonatite-alkaline silicate volcanic complex in the Gardar rift, South Greenland. Mineralogical Magazine, 61 (407) 499-513 doi:10.1180/minmag.1997.061.407.03
Finch, Adrian A. (1991) Conversion of nepheline to sodalite during subsolidus processes in alkaline rocks. Mineralogical Magazine, 55 (380) 459-463 doi:10.1180/minmag.1991.055.380.15
Coulson, Ian M. (1997) Post-magmatic alteration in eudialyte from the North Qôroq centre, South Greenland. Mineralogical Magazine, 61 (404) 99-109 doi:10.1180/minmag.1997.061.404.10
Pollard, A. M., Thomas, R. G., Williams, P. A. (1990) Connellite: stability relationships with other secondary copper minerals. Mineralogical Magazine, 54 (376) 425-430 doi:10.1180/minmag.1990.054.376.08
Hall, A., Neiva, A. M. R. (1990) Distribution of the ammonium ion in pegmatites, aplites and their minerals from central northern Portugal. Mineralogical Magazine, 54 (376) 455-461 doi:10.1180/minmag.1990.054.376.11
 
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