| Atlantic Ocean | |
- Mid-Atlantic Ridge complex
- Sierra Leone fracture zone
| Sharkov, E.V., Abramov, S.S., Simonov, V.A., Krinov, D.I., Skolotnev, S.G., Bel’tenev, V.E., and Bortnikov, N.S. (2007): Geology of Ore Deposits 49(6), 467-486. | | Canada | | |
| Galley, A.G., Jonasson, I.R., and Watkinson, D.H. (2000): Mineralium Deposita 35, 619-637. | | China | | |
| Dahlkamp, F.J., Ed. (2009): Uranium Deposits of the World. Springer (Berlin, Heidelberg), pp. 31-156. | | Russia | | |
| Semenov, S.V., Glebovitsky, V.A., Kol’tsov, A.B., Semenov, V.S., Korneev, S.I., and Savatenkov, V.M. (2008): Geology of Ore Deposits 50(4), 249-274. | | Slovakia | | |
| Koděra et all.,1990: Topografická mineralógia Slovenska, I-III, 1590p | | UK | |
- Camborne - Redruth - St Day District
| Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 1, p. 295. | |
| Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 1, pp. 317-326. |
- Caradon & Phoenix Area (South-Eastern Bodmin Moor)
| No reference listed | |
| No reference listed | | USA | | |
| Yale Peabody Museum | |
| Minerals of Virginia, 1990 by R. V. Dietrich |
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