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On bultfonteinite, a new fluorine-bearing hydrous calcium silicate from South Africa.

Published online by Cambridge University Press:  14 March 2018

John Parry ,
Alpiieus F. Williams  and
F. E. Wright
John Parry
Affiliation:
(chemical study), De Beers Consolidated Mines, Kimberley, Union of South Africa
Alpiieus F. Williams
Affiliation:
(chemical study), De Beers Consolidated Mines, Kimberley, Union of South Africa
F. E. Wright
Affiliation:
(crystallographical and optical study), Geophysical Laboratory, Carnegie Institution of Washington, D.C.
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Extract

This new mineral was first found by a miner named Cann in 1903 or 1904 on the 480-foot level of the Bultfontein mine at Kimberley. It occurred, associated with calcite, apophyllite, and natrolite, in a large ‘horse’ of dolerite and shale fragments enclosed in kimberlite. This huge inclusion, several hundred feet in height, undoubtedly formed part of the country-rock that now encloses the kimberlite pipe. The Specimens of the new mineral were considered to be natrolite and were presented to Mr. A. F. Williams. Several years later the same mineral was found by Mr. C. E. Adams in the Dutoitspan mine, which is located about half a mile from the Bultfontein mine; he presented his specimens to the MacGregor Museum at Kimberley. Recently, Mr. Miller, Underground Manager of the Jagersfontein mine in Orange River Colony, discovered the new mineral in that mine, which is located 100 miles south-east of Kimberley.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 23 , Issue 138 , September 1932 , pp. 145 - 162
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1932

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References

page 146 note 1 Parry, J. and Wright, F. E., Min. Mag., 1925, vol. 20, p. 277.CrossRefGoogle Scholar

page 160 note 1 Umpleby, J. B., Schaller, W. T., and Larsen, E. S., Amer. Journ. Sci., 1913, set. 4, vol. 36, pp. 385–;394 CrossRefGoogle Scholar.

page 160 note 2 Pelikan, A., Sitzungsber. Akad. Wiss. Wien, Abt. 1, 1902, vol. 111, p. 334;Google Scholar also F. Cornu, Min. Pctr. Mitt. (Tschermak), 1.905, vol. 24, p. 127

page 160 note 3 Wright, F. E., Amer. Journ. Sci., 1908, ser. 4, vol. 26, pp. 551–;553.Google Scholar