Note on an Occurrence of Bertrandite and Beryl at the South Crofty Mine, Cornwall1

James Phemister
Petrographer, Geological Survey and Museum, London
1Communicated by permission of the Director, Geological Survey and Museum.

Mineralogical Magazine; September 1940 v. 25; no. 170; p. 573-578; DOI: 10.1180/minmag.1940.025.170.01
© 1940, The Mineralogical Society
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