The Demix-Varennes quarry is an operating quarry and a "mini Mont St Hilaire"(see MR 29, 83-118). The quarry is exploiting an alkaline sill 12-20 m thick that covers a large area. It is on the municipal boundary of the towns of Varennes and Saint-Amable. The gate is located at the Varennes end but the workings and crushing plant are in St-Amable (approx. 1.6 km from the gate).
Ref.:
Horváth, L., Pfenninger-Horváth, E., Gault, R. A., & Tarassoff, P., 1998. Mineralogy of the Saint-Amable Sill, Varennes and Saint-Amable, Québec. Mineralogical Record, 29: 83-118.
Horváth, L. et al. (1999). Die Mineralien des Saint-Amable sill, Quebec, Canada. Mineralien-Welt, 2/99,53-64; 3/99 45-63 (in German).
ZAITSEV, A.N., YAKOVENCHUK, V.N., CHAO, G.Y., GAULT, R.A., SUBBOTIN, V.V., PAKHOMOSKY, Y.A., and BOGDANOVA, A.N. (1996) Kukharenkoite-(Ce) Ba2Ce(CO3)3F, a new mineral from Kola Peninsula, Russia and Qu_bec, Canada. European Journal of Mineralogy, 8, 1327-1336.
GRICE, J.D. & GAULT, R.A. (1995) Varennesite, a new species of hydrated Na-Mnsilicate with a uniques monophyllosilicate structure. Can. Min. 33, 1073-1081.
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Map Reference: 45°40'2"N , 73°20'36"W
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