Sphalerite, Quartz
Ingurtosu Mine, Arbus, South Sardinia Province, Sardinia, Italy
Old sphalerite specimens from the 2nd zone of Brassey Lode, Ingurtosu mine, collected on Sept, 14, 1959. The left specimen is 9x5x2 cm, the right one is 10x6x2 cm size. The white matrix is quartz, while the sphalerite cockades have grown around a schist nucleus -
© Dr. Geol. Marco Barsanti