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The variation of optical properties with chemical composition in the rhodonite-bustamite series

Published online by Cambridge University Press:  14 March 2018

Max H. Hey*
Affiliation:
Mineral Department of the British Museum of Natural History

Extract

A specimen of hardystonite from Franklin Furnace, New Jersey, U.S.A., purchased in 1899 from Mr. W. M. Foote of Philadelphia for the British Museum collection consists largely of an associated pale pink mineral which has at various times been thought to be rhodonite, fowlerite, wollastonite, or scapolite. This specimen has recently again attracted attention because of the remarkable fluorescent effects it shows in ultra-violet rays. The pink mineral displays a bright brick-red fluorescence, the hardystonite a violet; and some willemite present fluoresces a brilliant green. A description in the literature of such a mineral from Franklin Furnace being unknown to Dr. L. J. Spencer, he handed over to me the problem for investigation, and a detailed examination has proved the pink mineral to be bustamite.

Type
Research Article
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1929

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