Hydrothermally altered rhyolite pyroclastic rock from the area of the exposed cryptodome including a chalcedonic veinlet with finely disseminated marcasite in the far-right piece (above scribe end), 506g/t As, 107g/t Sb.
Hydrothermally altered rhyolite pyroclastic rock from the area of the exposed cryptodome including a chalcedonic veinlet with finely disseminated marcasite in the far-right piece (above scribe end), 506g/t As, 107g/t Sb.