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Blackburn mica mine, Cantley

ROCKHOUNDING PERMISSION REQUIRED DOCUMENTED

Where: Quebec · North America · approx. 45.57, -75.78 (vicinity only)

Why this spot: Gatineau phosphate and mica pits of the 1880s in Grenville marble

What turns up: apatite, phlogopite, diopside, calcite

Access: Permission required.

Old pits on private and municipal land, ask before collecting.

Open in Mudlark Map →

Satellite view, historic-map overlays, tide/flow context and field notes are in the app. Exact research detail is part of Pro.

Pins are approximate by design. This page is historical research, not permission to dig. Check ownership and local law first.