Old cobalt mines, now in a state forest, first worked ca. 1762 under the direction of Dr. Stephaunes of Germany.
References:
- Barber, J. W. (1836) Connecticut Historical Collections, p.520.
- American Mineralogist 6 (1921) 88-90.
Mineral List:49 entries listed. 37 valid minerals. 1 erroneous literature entry.
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