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New Mexico Mineral Symposium — Abstracts


Mineral adventures in the Keweenaw

Tom Rosemeyer

57647 Caledonia Street, Calumet,, MI, 49913,, datolite@charter.net

https://doi.org/10.58799/NMMS-2019.554

View PDF (1.85 MB) 

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Two years have passed since I have given a talk on the Michigan Copper Country and I will update you on the collecting over that period of time. Most of the specimens recovered have been the result of mine dumps being crushed for construction purposes. Crushing has continued at a steady pace and will continue to do so in the future. The downside is that once the dumps are gone they are gone for good but on the upside specimens are being recovered. The contractors have been allowing collecting after working hours and on weekends. This has allowed the recovery of many copper and silver specimens along with associated minerals being saved from the jaws of the crusher. Every year it is a race against time to try and save specimens from a colorful bygone era of mining in the district. There has also been small but important discoveries made at remote mine sites that I will discuss in the talk.

Keywords:

copper, microcrystals, silver

pp. 19

40th Annual New Mexico Mineral Symposium
November 9-10, 2019, Socorro, NM
Print ISSN: 2836-7294
Online ISSN: 2836-7308