Mineral: Phlogopite
Locality: Yates Mine, Otter Lake, Pontiac RCM, Outaouais, Québec, Canada
Dimensions: 6.5 x 8.1 cm

Description: When this specimen was collected it was known as biotite as were most black micas. In 1999, biotite was discredited, but the name is still used to describe unknown (not analyzed) dark micas.

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