K Feldspar from Great Barrier Island, Auckland Region, New Zealand
New Zealand | |
| [var. Adularia] Christie, T., Brathwaite, B. Mineral Commodity Report 13 - Silver, Institute of Geological and Nuclear Science Ltd. |
New Zealand | |
| [var. Adularia] Christie, T., Brathwaite, B. Mineral Commodity Report 13 - Silver, Institute of Geological and Nuclear Science Ltd. |