8.0 x 2.8 x 2.2 cm. Very long, pearlescent, parallel-growth thomsonite blades comprise this fine zeolite group specimen from the old-time and famous locality of Cape Blomidon, Nova Scotia. The Triassic basalt outcrops are along the Bay of Fundy. From an older museum collection dating to prior to WW I.
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Photo added: 10th Dec 2008