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Minerals from Swaziland: Niobates and titanates of the rare earths, chemically allied to Euxenite and Fergusonite; Cassiterite, Monazite, etc. The “Æschynite” from Hitterö

Published online by Cambridge University Press:  14 March 2018

G. T. Prior*
Affiliation:
Mineral Department of the British Museum

Extract

The specimens described in this note were collected by Mr. Sydney Ryan, Managing Director of the Ryan Tin Mines, and were presented by him to the British Museum through Mr. John Ballot, who brought them to England.

They were found in the stanniferous gravels of the Embabaan district in Swaziland, S. Africa. Their probable source is the granite-gneiss which forms the base of the rock-series in that district.

Type
Research Article
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1899

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References

page 96 note 1 The geology of the district is described by Prof. T. Rupert Jones in the Geol. Mag. for March, 1899.

page 100 note 1 Jehn, Inaug. Oiss. Jena, 1871. Analysis quoted by Dana, Syst. Min. 1892, p. 744.

page 101 note 1 Am. J. Sci. XLI. 1891, 249.

page 101 note 2 Neues Jahrb. f. Min. 1885, it. 89.

page 101 note 3 Videnskabsselskabets Skrifter, 1 Math.-Natur. Klasse, 1897, No. 7, Kristiania.

page 101 note 4 Am. J. Sci. 1898, VI. 116.

page 101 note 5 Since the above description was written, I have received from Prof. Molengraaff a copy of the recently published Annual Report of The State Geologist of the South African Republic for the year 1897, in which he describes and figures, in his account of the occurrence of Tinstone in Swaziland, crystals precisely similar to those described above.

A correction has been issued for this article: