Quartz vein in Pontivy leucogranite, near the contact with micaschists.
Vein structure : early palissadic sterile quartz, microcrystalline quartz with pitchblende, late milky quartz.
Located NW of Hinguer farm, along the road from Lignol to Saint-Yves hamlet.
Mineral List:8 entries listed. 6 valid minerals.
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