Los Amigos Zone. Photo 45 – massive and brecciated chalcedonic-microcrystalline silica. Photo 46 – fine-bedded chalcedonic-microcrystalline silicified tuff or sediments.
Los Amigos Zone. Photo 45 – massive and brecciated chalcedonic-microcrystalline silica. Photo 46 – fine-bedded chalcedonic-microcrystalline silicified tuff or sediments.