Foucault Quarry, Brownsburg-Chatham, Argenteuil RCM, Laurentides, Québec, Canada
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.
| Calcite|| Fluorite|| Pyrite|| Quartz|
4 entries listed. 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
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Locality Updated: Cox Mines (Mountain View Mine), Frederick Co., Maryland, USAFrom Bill Cordua, 12th Dec 2013 04:04:25