Foucault Quarry, Brownsburg-Chatham, Argenteuil RCM, Laurentides, Québec, Canada
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|Latitude & Longitude (WGS84):||45° 40' 5'' North , 74° 30' 33'' West|
|Latitude & Longitude (decimal):||45.6680555556, -74.5091666667|
Active quarry since 1999. The following has been extracted from the MRN's Fiche de gîte (Deposit File) :
The main rock type is a quartziferous, coarse-grained, orange-brown syenite of the Chatham-Grenville sequence. Most of the quarry rock is fractured and altered.
Two metric-sized shear zones cross the quarry diagonally. Close to these shear zones, the rock is hematized, sericitized, epidotized, chloritized, and cut by brecciated and geodic calcite veins.
A significant pyrite, fluorite (green and mauve) and quartz mineralization is present in these veins.
4 valid minerals.
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-Bellemare, Y. (2000): Inventaire des carrieres de Pierre, region du Sud-ouest du Quebec. Fiche de gîte du MRN. MB-2000-01