Tuviois Mine (Axareddu Mine), Sinnai, Cagliari metropolitan city (Metropolitan City of Cagliari), Sardinia, Italy
|Latitude & Longitude (WGS84):||39° 23' 28'' North , 9° 19' 25'' East|
|Latitude & Longitude (decimal):||39.39116,9.32370|
|Köppen climate type:||Csa : Hot-summer Mediterranean climate|
|Name(s) in local language(s):||Miniera Tuviois (Axareddu Mine), Sinnai, Città metropolitana di Cagliari, Sardegna, Italia|
|Other/historical region names associated with this locality:||Cagliari Province (1859-2016); Sarrabus|
Old silver mine in the narrow valley of Riu Su Predi (Rio Brabaisu hydrographic basin). Although the mining area is located in the municipal territory of Sinnai, it is more easily reachable from Burcei, from where the site is about 14 km away.
In the first half of the 19th century prospecting works performed at Sa Scalitta de Tuviois evidenced the presence of galena in association with baryte and quartz (Baldracco, 1853; Jervis, 1881). In 1885 a NW-SE-trending vein of argentiferous galena was discovered at Tuvu de Ois and Arcu de Predi. The Tuviois silver mineralisation was discovered in 1886 and in 1888 the mineral rights were acquired by the company Società Anonima Miniere di Lanusei, which exploited the vien until 1900. The mine was definitively closed in 1906. Some unsuccesful attempts to exploit Cu-, Pb- and Sb-bearing sulphides were made between 1910 and 1941. Prospect workings for fluorite (Axareddu prospecting permit) were dug between 1959 and 1972.
From a mineralogical point of view, the mine is famous for the native silver wires, that in some cases attained even more than 50 cm in length, and also for the abundance of chlorargyrite near the outcrops of the vein.
25 valid minerals.
This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.
Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org
|Carboniferous - Cambrian|
298.9 - 541 Ma
Age: Paleozoic (298.9 - 541 Ma)
Description: low grade metamorphic
Reference: Asch, K. The 1:5M International Geological Map of Europe and Adjacent Areas: Development and Implementation of a GIS-enabled Concept. Geologisches Jahrbuch, SA 3. 
443.8 - 541 Ma
|Paleozoic sedimentary rocks|
Age: Paleozoic (443.8 - 541 Ma)
Lithology: Sedimentary rocks
Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529.