Calcite ( fishtail twin)

A  rare tri-state fishtail twin with what looks like the original hand written label (price $3.75) stating “golden calcite prism faces , rhombohedral truncations, dusted with micro sphalerite”. A second label states it is from the Grace Dearborn, Boston Mass collection. I got it in the James Wilson collection.

Locality: Joplin,  Missouri

Composition: calcium carbonate