An asbestos mine in serpentinized peridotite, Thetford mines ophiolite complex. Operated by LAB Chrysotile (LAB = Lake Asbestos Bell), this is a huge, active open pit mine. In recent years many labels show "LAB mine" as the locality which reflects the preference of many local collectors.
Also erroneously known as "Black Lake Mine".
Refs.:
Tschernich, R. (1992): Zeolites of the World, p.440
Gaudard, S. (1993) Voyage au coeur des Appalaches (Guide to the Thetford Mines - Black Lake area in French) publ. Musée minéralogique et minier de la région de l'Amiante, 178 p.
Riordon, P.H. & Laliberté, R. (1972): Asbestos deposits of southern Quebec. Guide book Excursion B-08, Int. Geological Congress, 22 p.
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Map Reference: 46°1'N , 71°22'W
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