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Spencer, L. J. (1926) Sperrylite crystals from the Transvaal. Mineralogical Magazine and Journal of the Mineralogical Society, 21 (114) 94-97 doi:10.1180/minmag.1926.021.114.05

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Reference TypeJournal (article/letter/editorial)
TitleSperrylite crystals from the Transvaal
JournalMineralogical Magazine and Journal of the Mineralogical Society
AuthorsSpencer, L. J.Author
Year1926 (September)Volume21
Issue114
PublisherMineralogical Society
Download URLhttps://rruff.info/doclib/MinMag/Volume_21/21-114-94.pdf+
DOIdoi:10.1180/minmag.1926.021.114.05
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Mindat Ref. ID7023Long-form Identifiermindat:1:5:7023:6
GUID0
Full ReferenceSpencer, L. J. (1926) Sperrylite crystals from the Transvaal. Mineralogical Magazine and Journal of the Mineralogical Society, 21 (114) 94-97 doi:10.1180/minmag.1926.021.114.05
Plain TextSpencer, L. J. (1926) Sperrylite crystals from the Transvaal. Mineralogical Magazine and Journal of the Mineralogical Society, 21 (114) 94-97 doi:10.1180/minmag.1926.021.114.05
In(1926) Mineralogical Magazine Vol. 21 (114) Mineralogical Society
Abstract/NotesA very fine and unusual crystal of sperrylite, recently presented by Mr. G. H. Beatty of Johannesburg to the mineral collection of the British Museum, came from a new adit on the Tweefontein farm (no. 1083), about 10 miles NNW. of Potgietersrust, Waterberg district, Transvaal. It had been found embedded in copper-stained limonite in crush-zones of banded ironstone underlying norite. The limonite matrix is presumably an alteration-product of sulphides (pyrrhotine, pentlandite, and chalcopyrite). The banded ironstone is an altered sediment belonging to the dolomite series, and is penetrated by apophyses from the basic margin of the Bushveld igneous complex.


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