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Neal, Colin, Stanger, Gordon (1984) Calcium and magnesium hydroxide precipitation from alkaline groundwaters in Oman, and their significance to the process of serpentinization. Mineralogical Magazine, 48 (347) 237-241 doi:10.1180/minmag.1984.048.347.07

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Reference TypeJournal (article/letter/editorial)
TitleCalcium and magnesium hydroxide precipitation from alkaline groundwaters in Oman, and their significance to the process of serpentinization
JournalMineralogical MagazineISSN0026-461X
AuthorsNeal, ColinAuthor
Stanger, GordonAuthor
Year1984 (June)Volume48
Issue347
PublisherMineralogical Society
Download URLhttps://rruff.info/doclib/MinMag/Volume_48/48-347-237.pdf+
DOIdoi:10.1180/minmag.1984.048.347.07Search in ResearchGate
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Mindat Ref. ID3619Long-form Identifiermindat:1:5:3619:5
GUID0
Full ReferenceNeal, Colin, Stanger, Gordon (1984) Calcium and magnesium hydroxide precipitation from alkaline groundwaters in Oman, and their significance to the process of serpentinization. Mineralogical Magazine, 48 (347) 237-241 doi:10.1180/minmag.1984.048.347.07
Plain TextNeal, Colin, Stanger, Gordon (1984) Calcium and magnesium hydroxide precipitation from alkaline groundwaters in Oman, and their significance to the process of serpentinization. Mineralogical Magazine, 48 (347) 237-241 doi:10.1180/minmag.1984.048.347.07
In(1984, June) Mineralogical Magazine Vol. 48 (347) Mineralogical Society
Abstract/NotesAbstractThe occurrence and genesis of Ca(OH)2 and Mg(OH)2 deposits associated with hyperalkaline groundwater from partly serpentinized ultramafic rocks in Northern Oman is reported. Two types of Ca(OH)2 deposit are differentiated; crystalline portlandite formed by the evaporation of Ca2+-2OH− spring waters, and a form of amorphous gel, not previously known in nature. The latter is a product of present-day low-temperature serpentinization. Mg(OH)2 (brucite) in both holocrystalline and gel forms is produced by mixing of Mg2+−2H surface waters with a Ca2+-2OH− groundwater in both surface and groundwater environments. These results indicate that significant differences exist between the processes of medium- and low-temperature brucite generation.

Map of Localities

Locality Pages

LocalityCitation Details
Jebel Awq, Lower Semail Nappe, Ad Dakhiliyah Governorate, Oman

Mineral Pages

MineralCitation Details
Portlandite

Mineral Occurrences

LocalityMineral(s)
Jebel Awq, Lower Semail Nappe, Ad Dakhiliyah Governorate, Omanⓘ Brucite, ⓘ Portlandite

See Also

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Stanger, Gordon, Neal, Colin (1984) A new occurrence of suolunite, from Oman. Mineralogical Magazine, 48 (346) 143-146 doi:10.1180/minmag.1984.048.346.22
Stanger, Gordon, Laver, James, Neal, Colin (1988) Black Carbonaceous Calcite Associated with Serpentinite from Oman. Mineralogical Magazine, 52 (366) 403-408 doi:10.1180/minmag.1988.052.366.15
Evans, Howard T., Nord, Gordon, Marinenko, John, Milton, Charles (1984) Straczekite, a new calcium barium potassium vanadate mineral from Wilson Springs, Arkansas. Mineralogical Magazine, 48 (347) 289-293 doi:10.1180/minmag.1984.048.347.16
Golubev, S. V. (1998) Kinetics of Calcium and Magnesium Phosphates Precipitation from Seawater. Mineralogical Magazine, 62 (1) 533-534 doi:10.1180/minmag.1998.62a.1.282
Lippard, S. J. (1984) Petrology of alkali wehrlite sills in the Oman Mountains. Mineralogical Magazine, 48 (346) 13-20 doi:10.1180/minmag.1984.048.346.02
Mackenzie, R. C. (1984) Discovery of volkonskoite. Mineralogical Magazine, 48 (347) 297-298 doi:10.1180/minmag.1984.048.347.18
Kanat, Leslie Howard (1984) Jadeite from southern Oscar II Land, Svalbard. Mineralogical Magazine, 48 (347) 301-303 doi:10.1180/minmag.1984.048.347.20
(1894) Index to Vol. X. Mineralogical Magazine and Journal of the Mineralogical Society, 10 (48) 347-354 doi:10.1180/minmag.1894.010.48.10
Stanger, Gordon, Neal, Colin (1994) The occurrence and chemistry of huntite from Oman. Chemical Geology, 112 (3) 247-254 doi:10.1016/0009-2541(94)90027-2
Wearing, E. (1984) Occurrence of some Ni- and Sn-rich minerals in copper converter slags. Mineralogical Magazine, 48 (347) 243-249 doi:10.1180/minmag.1984.048.347.08
Scatena-Wachel, D. E.; Jones, A. P. (1984) Primary baddeleyite (ZrO2) in kimberlite from Benfontein, South Africa. Mineralogical Magazine, 48 (347). 257-261 doi:10.1180/minmag.1984.048.347.10
 
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