Veinlet of quartz-pyrrhotite-chalcopyrite

Tags: chalcopyrite dacite porphyry pyrrhotite sericite smectite stockwork

Category: Ore

Deposit: Marmato

Description:

Veinlet of quartz-pyrrhotite-chalcopyrite with halo of green sericite-smectite in dacite porphyry with weak biotite alteration. MT-1498 at 847.3 m. Sample 2.0 m at 2.88 g/t Au, 0.7 g/t Ag, and 225 Cu