| Prussian formation | |
|---|---|
| Stratigraphic range: Eocene | |
 Amber with an insect inclusion from the Prussian formation. | |
| Type | Geological formation |
| Lithology | |
| Other | Phosphorite, Amber |
| Location | |
| Location | Russia |
| Type section | |
| Region | Sambian Peninsula |
The Prussian Formation is a geologic formation in Prussia, today mostly Kaliningrad Oblast. It holds 90% of the world's amber supply.[1]
References
- ↑ G.s, Kharin; N.p, Lukashina (2002). "ACCUMULATION CONDITIONS AND CORRELATION OF THE UPPER EOCENE AMBER-BEARING PRUSSIAN FORMATION, KALININGRAD REGION". ISSN 0869-5938.
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