Rare card
Oil shale in Estonia
- Value
- 50 W
- Attack
- 204
- Defence
- 163
- Players
- 0
0 copies in circulation
There are two kinds of oil shale in Estonia, both of which are sedimentary rocks laid down during the Ordovician geologic period. Graptolitic argillite is the larger oil shale resource, but, because its organic matter content is relatively low, it is not used industrially.
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