“An S-shaped drift of complex crystals of black sphalerite perched atop ankerite (per the original label) or possibly (?) dolomite on deep grey specular matrix. If the original label and ID is correct, a Mindat photo reviewer noted that the "specimen has been cleaned in an inappropriate manner. The ankerite has only a very thin orange weathering zone at its surface, which rapidly disappears upon short-time contact with citric acid, iron out etc. These specimens are not naturally found on white ankerite."”

“An S-shaped drift of complex crystals of black sphalerite perched atop ankerite (per the original label) or possibly (?) dolomite on deep grey specular matrix. If the original label and ID is correct, a Mindat photo reviewer noted that the "specimen has been cleaned in an inappropriate manner. The ankerite has only a very thin orange weathering zone at its surface, which rapidly disappears upon short-time contact with citric acid, iron out etc. These specimens are not naturally found on white ankerite."”