| Samples | Easting (E) | Northing (N) | Description | Location |
| A16 | 534599 | 1307216 | Reddish oolitic iron ore, with spherical ooïds | Madékali |
| A20 | 544933 | 1296552 | Dark red oolitic iron ore with yellowish stains | Madékali |
| B2 | 553305 | 1284132 | Dense oolitic iron ore | Sendé |
| B3 | 538719 | 1277156 | Indurated scoria, very ferrugineous and dense | Sendé |
| B5 | 539474 | 1278511 | Dense oolitic iron ore | Sendé |
| B10 | 554688 | 1281944 | Dense and shiny oolitic iron ore | Sendé |
| B12 | 553336 | 1286453 | Dense and shiny oolitic iron ore | Sendé |
| D6’ | 518200 | 1303077 | Dense and shiny oolitic iron ore | Guéné - Goungoun |
| D16 | 517265 | 1277734 | Laterite with ferrugineous oolite, dense | Guéné - Goungoun |
| D20 | 521646 | 1246402 | Variegated ferrugineous lateritic sandstone (reddish, yellowish), oolitic and dense | Fouè |