82 mm Astrophyllite from Khibiny, Russia
Mount Eveslogchorr, Khibiny Massif, Murmansk Oblast, Russia
Size: 82x81x53 mm (561 gr.)
Bronze-bladed crystals of Astrophyllite embedded in a white feldspar.
Please watch the video for a better view:
I am not sure when it was found, but my father bought this when he visited Russia, about 20 years ago.