K Feldspar (Var: Adularia)
Ayer's Cliff Quarry, Ayer's Cliff area, Sainte-Catherine-de-Hatley, Memphrémagog RCM, Estrie, Québec, Canada
Very interesting and unique for the locality is this large Adularia crystal group. Stands up to 4 cm. Pocket was similar to the Alpine cleft localities and it contained lots of Quartz and Chlorite (Chamosite).
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