Grossular from Portugal
Portugal | |
| Pedro Alves collection and analytical data. |
| |
| (1998) International strategic mineral issues summary report: tungsten. Circular 930-O. US Geological Survey doi:10.3133/cir930o |
Portugal | |
| Pedro Alves collection and analytical data. |
| |
| (1998) International strategic mineral issues summary report: tungsten. Circular 930-O. US Geological Survey doi:10.3133/cir930o |
Sintra Complex, Sintra, Lisbon, Portugal