Strengite from Catalonia, Spain
Spain | |
| F. Costa et al. , "Current Research in Geology Applied to Ore Deposits", P. Fenoll Hach-Ali et al. Editors, University of Granada, Spain, 1993. |
| Joan Rosell (2023) |
Bareche, E (2005) "Els minerals de Catalunya. Segle XX" Ed. Grup Mineralògic Català, Barcelona, 269 p. | |
| Mineralogistes de Catalunya (1997), VII (1): 34-55 |
Cal Gairal street outcrops, Bruguers, Gavà, Baix Llobregat, Barcelona, Catalonia, Spain