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Australia | |
| Fetherston, J., Stocklmayer, S., Stocklmayer, V(2013): Gemstones of WA, Geological Survey of WA |
| Groom, F. (1896) Report of the Department of Mines for the Year 1895. (Western Australia) |
| Coolgardie Miner newspaper (1899), Gold and Diamonds. Mr. Achimovich Interviewed, 03/02/1899 |
| Western Mail newspaper (Perth) (1915), Gold and Diamonds. Nullagine Mineral Area, 11/06/1915 |
| Gibb-Maitland, A. (1908), The Geological Features and Mineral Resources of the Pilbara Goldfield, Geological Society of Western Australia, State Government of Western Australia, 1908 |
| The West Australian newspaper (Perth) (1896), Nullagine Notes, 31/07/1896 |
| Gibb-Maitland, A. (1908), The Geological Features and Mineral Resources of the Pilbara Goldfield, Geological Survey of Western Australia, State Government of Western Australia, 1908 |
| online-wikipedia on Jack Hills University of Wisconsin website which includes photos Earth Obsevatory NASA mag online. |
| Fetherston, J., Stocklmayer, S., Stocklmayer, V.(2013): Gemstones of WA, Geological Survey of WA |