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Australia | |
| Fetherston, J., Stocklmayer, S., Stocklmayer, V. (2013): Gemstones of WA, Geological Survey of WA |
| Fetherston, J., Stocklmayer, S., Stocklmayer, V. (2013): Gemstones of WA, Geological Survey of WA |
| Feldtmann, F.R. (1919), The Magnesite Deposits of Bulong. North-East Coolgardie Goldfield, Geological Survey of Western Australia, Bulletin 82, 1919 |
| Kim McDonald collection |
| Fetherston, J., Stocklmayer, S., Stocklmayer, V. (2013): Gemstones of WA, Geological Survey of WA |
| Fetherston, J., Stocklmayer, S., Stocklmayer, V. (2013): Gemstones of WA, Geological Survey of WA |
| Fetherston, J., Stocklmayer, S., Stocklmayer, V.(2013): Gemstones of Western Australia, Geological Survey of Western Australia |
Bulong opal deposits, Bulong Goldfield, Kalgoorlie-Boulder Shire, Western Australia, Australia