This specimen features soft white tufts of the zeolite mordenite safely nestled in a vug, a rare occurrence for the Francon Quarry. It is accompanied by micro dolomite and white analcime crystals. Mordenite is a zeolite mineral first described in 1864 by Henry How, named after the small community of Morden, Nova Scotia, Canada, along the Bay of Fundy, where it was first found. Collected by Dr. Tarassoff in 1978, this specimen originates from the Francon Quarry in central Montreal. Known for its alkalic intrusive sill in limestone, the quarry ceased operations in 1981 and will never reopen, making specimens from this location particularly rare and valuable to collectors.
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