“A sealed test tube containing curly melanterite. Formed as a post-mining secondary mineral inside the coal mine. FOV is an estimate.
Nova Scotia Museum of Natural History specimen 979GM0065.001.
Erwin L. Zodrow and Keith McCandlish (1978) Hydrated Sulfates in the Sydney Coalfiled, Cape Breton, Nova Scotia. Canadian Mineralogist: 16: 17-22.
Thanks to Tim Fedak and the NSMNH for allowing the photo to be taken and shared.”