Fukuchilite occures as indistinguishable grains, admixed with pyrite, covellite, and barite, in an anhydrite-gypsum matrix. See Handbook of Mineralogy for further description, http://rruff.geo.arizona.edu/doclib/hom/fukuchilite.pdf> S402-155
0.7 cm specimen, courtesy of Excalibur Mineral Company.
0.7 cm specimen, courtesy of Excalibur Mineral Company.
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