A seam that was infilled with a layer of white calcite on which clusters of hemimorphites formed in varying sized groupings and with various shades of grey. Rosasite appears under and on top of the hemimorphites. The back is coated with the same combination but with dramatically different composition. Ex Jim and Paula Wilson. Locality: Hidden Treasure Mine, Ophir Mining District, Tooele County, Utah Composition: copper zinc carbonate with hydrous zinc silicate and calcium carbonate
