Orange-brown aggregates of erythrosiderite with
sal
ammoniac. Material from the 1926 eruption of the Vesuvius. Erythrosiderite
is hygroscopic and must be stored in a closed vial. The photo was made through
the vial.
Origin: Somma-Vesuvius Complex, Naples Province, Campania, Italy
Picture size: 4 mm
Owner: Thomas Witzke
Photo courtesy of: