Home > Copper Minerals II – September 8 > MS1124 Marshite

Marshite - Sold


Marshite is copper iodide with the sphalerite crystal structure type. Liversidge (1892) named the mineral in honor of Charles W. Marsh, who first noted the mineral. While known from several world localities, marshite is the rarely available on the specimen market. This specimen consists mainly of cerussite, covered on one surface with a black manganese oxide, perhaps coronadite. On the black coronadite are numerous orangey red marshite crystals to 4 mm. The marshite crystals were presumably colorless when unearthed, but exposure to sunlight has darkened the crystals here. This is a rich specimen of marshite, from the type locality.