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RM1364   Balangeroite

Poggio San Vittore mine, Balangero, Torino, Piemonte, Italy

Really fine specimen, with good size, for this rare species. The balangeroite is a magnesium, iron anfd manganese silicate, only found in a few places worldwide. The serpentine Poggio San Vittore quarry, which were the best samples has been found and it is the type locality for the species, is abandoned since 1990.
The mineral usually appears included in the serpentine matrix and only few fibers are aerial. In this specimen, fibers are totally aerial and with an unusual length. A definitive piece, from the TL for selected displays.

Size: 12.4 x 6.0 x 5.5 cm.
Main crystal: 95 mm. fibr.