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| Russell, Arthur (1946) On rhodonite and tephroite from Treburland manganese mine, Altarnun, Cornwall; and on rhodonite from other localities in Cornwall and Devonshire. Mineralogical Magazine and Journal of the Mineralogical Society, 27 (194) 221-235 doi:10.1180/minmag.1946.027.194.02 |
| [var. Byssolite] Henwood, William Jory (1843) On the Metalliferous Deposits of Cornwall and Devon. Transactions of the Royal Geological Society of Cornwall, 5. 1-386 |
| [var. Byssolite] Carne, J. (1822) On the relative age of the veins of Cornwall. Transactions of the Royal Geological Society of Cornwall, 2. 49-128 |
| Dines, H. G. (1956) The Metalliferous Mining Region of South-West England (1st ed.) Vol. 1. Geological Survey of Great Britain, London. |
| Collins, J. H. (1871) A Handbook to the Mineralogy of Cornwall and Devon. Heard and Sons, Truro. |
| [var. Byssolite] Carne, J. (1822) On the Mineral Productions and the Geology of the Parish of St. Just. Transactions of the Royal Geological Society of Cornwall, 2. 290-358 |
| Collins, J. H. (1871) A Handbook to the Mineralogy of Cornwall and Devon. Heard and Sons, Truro. |
Levant Mine, Trewellard, St Just, Cornwall, England, UK