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Australia | |
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| Graham, I. T., Pogson, R. E. and Colchester, D. (2002): Cowlesite and associated minerals from the Barrington Tops area, New South Wales. Australian J. Mineral. 8, 3-8. |
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| Graham, I.T., Judd, K., Colchester, D.M., Hager, S., Lay, A., Greig, A. (2020) The cause of colour in phillipsite-Na and phillipsite-K in basanite from Kulnura quarry, Central Coast, New South Wales. Australian Journal of Mineralogy, 21:1, 7-17. |
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| Graham, I. T., Colchester, D. and Pogson, R. E. (2002): Phillipsite and associated minerals from Hargraves quarry, Oberon, New South Wales. Australian Journal of Mineralogy 8, 29-32. |
