Phosgenite- monteponi , Sardinia,Italy

A piece of great interest from the Lattuada collection with original Label  from the Bottega delle Pietre, Milan.
Crystal with the classic luster and strongly fluorescent, 2 cm. Difficult to find in the current market. 
the crystal is complete in the front part, but the back is incomplete due to the closure of the galena geode,
size 5x5x3 cm