Chalcedony from selected localities.
New Zealand | |
| Oldfield, G. (1989) Gladstone Hill Epithermal System, Waihi, New Zealand. Proceedings of the 11th New Zealand Geothermal Workshop 1989, University of Auckland Geothermal Institute. |
Oldfield, G. (1989) Gladstone Hill Epithermal System, Waihi, New Zealand. Proceedings of the 11th New Zealand Geothermal Workshop 1989, University of Auckland Geothermal Institute. |