 |
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| dopplerite; peaty pitch coal; pitch peat | |||
| peaty pitch coal (сибирский асфальт) | |||
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допплерит : 1 phrases, 1 sujets |
| Géologie | 1 |
|
| |||
| dopplerite; peaty pitch coal; pitch peat | |||
| peaty pitch coal (сибирский асфальт) | |||
|
допплерит : 1 phrases, 1 sujets |
| Géologie | 1 |