Pervasively silicified and fractures fragments of tuffaceous wallrock, with hematite and goethite fracture fill, forming part of a saccharoidal quartz vein which is partly dark grey and sulphidic.
Pervasively silicified and fractures fragments of tuffaceous wallrock, with hematite and goethite fracture fill, forming part of a saccharoidal quartz vein which is partly dark grey and sulphidic.