[Rockhounds] David Shannon chalcanthite

[Alan Goldstein]

I found a large specimen of chalcanthite - crust on a matrix with tiny pyrite cubes in it from Steve Garza's collection. Dee tells me it's a David Shannon specimen. Does anyone have a copy of his catalogs from the 1980s? I can't find mine. I have a Christmas mine, Gila Co., AZ specimen, but the matrix is different. It might be 79 Mine, but I'd love to have a more certain locality.

Alan G.