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V.—Pleochroism in a Tin-bearing Mineral from Siam

Published online by Cambridge University Press:  01 May 2009

J. B. Scrivenor
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Extract

In 1915 a heavy concentrate of sand from an unknown locality in Siam was submitted to me for identification. The sand consisted of rather coarse grains of a dark mineral, and finer grains of ilmenite, monazite, tourmaline, zircon, and topaz, with some of the same dark mineral as that occurring in coarse grains.

Type
Original Articles
Information
Geological Magazine , Volume 6 , Issue 3 , March 1919 , pp. 123 - 124
Copyright
Copyright © Cambridge University Press 1919

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