We present the results of an investigation for REE, carried out on the Silius fluorite vein system (SE Sardinia, Italy), which is similar to other late- to post-Hercynian mineralizations of this type in Europe. The mineralogical study evidenced that REE-fluorocarbonates, mainly represented by synchysite, occur in the gangue of the vein system, in association with hydrothermal dolomite and quartz. This is a relevant discovery, because this mineral association has been commonly observed in several fluorite vein systems genetically related to magmatic activity, whereas it is rare in non-magmatically associated hydrothermal veins.
Not Only Carbonatites: Rare Earth Elements in the Silius Fluorite-Calcite Vein System (SE Sardinia, Italy)
Santoro Licia
2015-01-01
Abstract
We present the results of an investigation for REE, carried out on the Silius fluorite vein system (SE Sardinia, Italy), which is similar to other late- to post-Hercynian mineralizations of this type in Europe. The mineralogical study evidenced that REE-fluorocarbonates, mainly represented by synchysite, occur in the gangue of the vein system, in association with hydrothermal dolomite and quartz. This is a relevant discovery, because this mineral association has been commonly observed in several fluorite vein systems genetically related to magmatic activity, whereas it is rare in non-magmatically associated hydrothermal veins.
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