Hostname: page-component-cb9f654ff-w5vf4 Total loading time: 0 Render date: 2025-09-07T06:19:46.885Z Has data issue: false hasContentIssue false
  • English
  • Français

Notes on Minerals from Cornwall and Devon

Published online by Cambridge University Press:  14 March 2018

R. H. Solly
R. H. Solly*
Affiliation:
Demonstrator in Mineralogy to the University of Cambridge
Get access Rights & Permissions [Opens in a new window]

Extract

I obtained this summer a most beautiful variety of fluor spar, which was raised from the 145 fathom level of the Holmbush Mine. It is of a transparent azure-blue colour, and shows well marked fluorescent phenomena, though not so strongly as that of Weardale, Cumberland.

Some of the specimens are deep blue in one part and limpid like glass in another ; it was found that while the deeply coloured part was strongly fluorescent the limpid part had little or no effect upon the refrangibility of the light passed through it.

Information

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 6 , Issue 31 , March 1886 , pp. 202 - 211
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1886

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable