Eighth supplementary list of British Isles minerals (English)

George Ryback, Peter C. Tandy
1992 Mineralogical magazine  
The last three, together with the present English list, represent a set equivalent to one of the earlier lists, the faster pace of new discoveries dictating the division into smaller regional lists. An occurrence qualifies for inclusion in this English list only if it is both the first in the British Isles and from an English locality, although the practice of mentioning, where appropriate, additional finds in whatever region has been continued. To keep the supplementary lists realistically
more » ... s realistically brief, none of them routinely includes corrections of or deletions from Greg and Lettsom's Manual (1858), nor new and perhaps more significant occurrences of species already on record. (A mineral should not normally appear in more than one list.) Nevertheless, the lists are useful in bringing together a great deal of scattered infor-
doi:10.1180/minmag.1992.056.383.17 fatcat:iaflzp6glncd5kowqc7hhh47ma