A beautiful, truly sculptural specimen with finely filigreed crystals of kutnahorite in curving rows and layers twisting upon each other. Extremely dramatic example of this style, as I think the pics convey! Usually this style is labeled simply as kutnahorite, but there is probably some manganocalcite mixed in as well (its a series) in the underlaying, less crystallized platelike layers upon which the finely filigreed crystals rest. I think these are among the most biological-looking of mienral specimens!