Machete epithermal vein zone. The veins and gold mineralization are hosted in strongly sericite-altered granodiorite (a), with quartz veinlets (b) and portions brecciated with green/grey silica and iron oxides and jarosite. Float in the area includes samples of finely banded silica and iron oxide (d) and breccia with matrix of crystalline quartz (comb texture) with fragments of finally banded silica and iron oxides after sulphides (e), both textures typical of epithermal veins.
Machete epithermal vein zone. The veins and gold mineralization are hosted in strongly sericite-altered granodiorite (a), with quartz veinlets (b) and portions brecciated with green/grey silica and iron oxides and jarosite. Float in the area includes samples of finely banded silica and iron oxide (d) and breccia with matrix of crystalline quartz (comb texture) with fragments of finally banded silica and iron oxides after sulphides (e), both textures typical of epithermal veins.