Note: some specimens of crystallized gypsum uploaded to this locality (Sesimbra municipality) have their origin more accurately somewhere on the north bank of the Tagus River. Everything indicates that the dirt and debris from the excavation works (in the early years of this century), for the new underground lines of the Lisbon subway, were removed to some quarries in the area of Sesimbra.
Mindat ArticlesCalcite Aragonite Eccentric Speleotherms by Rui Nunes
Mineral ListMineral list contains entries from the region specified including sub-localities
| 'Manganese Oxides|
var: Manganese Dendrites'
20 entries listed. 8 valid minerals.
Localities in this Region
The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.
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Locality Updated: Forsythe Mine, Cooksville, Howard Co., Maryland, USAFrom Bill Cordua, 9th Dec 2013 04:44:50