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UK | |
| Golley, Peter, Williams, Richard (1995) Cornish Mineral Reference Manual. Endsleigh Book Co., Truro. 71pp. |
| Royal Cornwall Polytechnic Society (1870): 38. Annual Report, pp. 30-31 |
- Carclaze China Clay Pit (Baal China Clay Pit)
| Golley, Peter, Williams, Richard (1995) Cornish Mineral Reference Manual. Endsleigh Book Co., Truro. 71pp. |
| Brian Craik-Smith collection |
| Collins, J.H. (1877) II. - Remarks on Gramenite from Smallacombe, and on the Chloropal Group of Minerals. Mineralogical Magazine: 1(3): 67-72. |
| King, Van (n.d.) Personal communcation. |
| Livingstone (2002) p. 176. Livingstone, A., Macpherson, H. G. (1983) Fifth supplementary list of British minerals (Scottish) Mineralogical Magazine, 47 (342) 99-105 doi:10.1180/minmag.1983.047.342.23 Stephen, I. (1954) An Occurrence of Palygorskite in the Shetland Isles. Mineralogical Magazine, vol. 30, n° 226, pp. 471-480. |