Random triples
| Subject | Object |
|---|---|
| gptkb:Chuquicamata_Mine | 0.5% to 1% copper |
| gptkb:Lumwana_Mine | approximately 0.6% copper |
| gptkb:Morenci_mine | 0.4% to 0.5% copper |
| gptkb:Safford_Mine | 0.25% to 0.5% copper |
| gptkb:Cobre_Panama | 0.5% to 0.6% copper |
| gptkb:Escondida_mine | high quality |
| gptkb:Codelco_Radomiro_Tomic | high-grade ore |