Columbite-Tantalite from Finland
Finland | |
| Lahti, Seppo I. (1981) On the granitic pegmatites of the Eräjärvi area in Orivesi, southern Finland. Bulletin de la Commission Géologique de Finlande Vol. 314. Geological Survey of Finland |
Lahti, Seppo I. (1981) On the granitic pegmatites of the Eräjärvi area in Orivesi, southern Finland. Bulletin de la Commission Géologique de Finlande Vol. 314. Geological Survey of Finland | |
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