Sand from Portugal
Portugal | |
| LNEG/Siorminp ID 801Caulino |
| LNEG/Siorminp ID 1639Carvão |
| LNEG ref 2173Au |
| Rui Nunes information 2018 |
Rui Nunes' visit in October 2022 | |
| LNEG Siorminp ID 1735Diatomito |
LNEG Siorminp ID Tripoli (SiO2) | |
LNEG Siorminp ID 1736Carvão | |
| Klaus Ludwig visit 2022 |