Servette slag heaps, Servette-Chuc mining complex, Saint-Marcel, Aosta Valley, Italyi
| Regional Level Types | |
|---|---|
| Servette slag heaps | Group of Slag Localities |
| Servette-Chuc mining complex | Mining Area |
| Saint-Marcel | Commune |
| Aosta Valley | Autonomous Region |
| Italy | Country |
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Latitude & Longitude (WGS84):
45° 42' 3'' North , 7° 27' 13'' East
Latitude & Longitude (decimal):
Type:
Group of Slag Localities
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Saint Marcel | 930 (2014) | 3.4km |
| Nus | 1,826 (2014) | 4.5km |
| Neyran-Etabloz | 670 (2014) | 4.6km |
| Fénis | 1,667 (2015) | 4.9km |
| Villefranche | 593 (2014) | 5.3km |
Name(s) in local language(s):
Cumuli di scorie di Servette, Complesso minerario di Servette-Chuc, Saint-Marcel, Valle d'Aosta, Italia
Large furnace slag heaps near the Servette mine. These heaps can be grouped under two sub-localities: the Fontillon dump and the “Strada Cavour” (Cavour road) slag heaps. Two kinds of slags are observable: porous slags containing fragments of gangue and pieces of carbonized wood; lava-like slags. The slags mainly consist of fayalite, wüstite, hercynite, Cu-Fe eutectoid alloys, relict sulphides and interstitial glass. Weathering products include goethite, green Cu sulphates and chrysocolla (Tumiati et al., 2005).
The Fontillon dump, a 300-m-wide and 50-m-high slag deposit at about 1660-1680 m in altitude, is located along the path between the Treves foundry, a blast furnace built around the XV century, and Servette mine. This dump has been partly damaged, as the slags have been utilized for paving the nearby roadways. Radiocarbon dating of a piece of carbonized wood enclosed in a piece of slag, sampled from the deepest and oldest part of the dump, provided an age of 1120 +/- 40 BP and, after calibration, 780-1120 AD. This testifies that the mine was operated during the Middle Ages, far before the activity of the Treves foundry.
Various slag heaps with an average thickness up to 7-10 m are spread along “Strada Cavour” (Cavour road), i.e., the pathway that connects Plout and the Chuc mining village to the nowadays main path Druges-Servette-Prabornaz mine. The largest of them is located at an altitude of 1738 m at the intersection of “Strada Cavour” with the main road to Prabornaz. Radiocarbon dating of a piece of carbonized wood enclosed in a piece of porous slag, sampled from the uppermost level of the dump, provided an age of < 100 BP. This is the age of the last period of exploitation of the Servette mine and suggests that the old low-shaft smelting technique (a technique used from the Middle Ages up to 1700) was still in use here at the end of the 19th century, due to the low socio-economic development of the valley.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
22 valid minerals.
Rock Types Recorded
Note: data is currently VERY limited. Please bear with us while we work towards adding this information!
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Copper | 1.AA.05 | Cu |
| ⓘ | Native Iron | 1.AE.05 | Fe |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Chalcocite | 2.BA.05 | Cu2S |
| ⓘ | Anilite | 2.BA.10 | Cu7S4 |
| ⓘ | Bornite | 2.BA.15 | Cu5FeS4 |
| ⓘ | Troilite | 2.CC.10 | FeS |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Goethite | 4.00. | Fe3+O(OH) |
| ⓘ | Cuprite | 4.AA.10 | Cu2O |
| ⓘ | Wüstite | 4.AB.25 | FeO |
| ⓘ | Hercynite | 4.BB.05 | Fe2+Al2O4 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| ⓘ | Aragonite | 5.AB.15 | CaCO3 |
| ⓘ | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Brochantite | 7.BB.25 | Cu4(SO4)(OH)6 |
| ⓘ | Chalcanthite | 7.CB.20 | CuSO4 · 5H2O |
| ⓘ | Halotrichite | 7.CB.85 | FeAl2(SO4)4 · 22H2O |
| ⓘ | Gypsum | 7.CD.40 | CaSO4 · 2H2O |
| ⓘ | Langite | 7.DD.10 | Cu4(SO4)(OH)6 · 2H2O |
| ⓘ | Ramsbeckite | 7.DD.60 | (Cu,Zn)15(SO4)4(OH)22 · 6H2O |
| Group 9 - Silicates | |||
| ⓘ | Fayalite | 9.AC.05 | Fe2+2(SiO4) |
| ⓘ | Forsterite | 9.AC.05 | Mg2(SiO4) |
| ⓘ | Chrysocolla | 9.ED.20 | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| Unclassified | |||
| ⓘ | 'Glass' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Brochantite | Cu4(SO4)(OH)6 |
| H | ⓘ Chalcanthite | CuSO4 · 5H2O |
| H | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| H | ⓘ Goethite | Fe3+O(OH) |
| H | ⓘ Gypsum | CaSO4 · 2H2O |
| H | ⓘ Halotrichite | FeAl2(SO4)4 · 22H2O |
| H | ⓘ Langite | Cu4(SO4)(OH)6 · 2H2O |
| H | ⓘ Malachite | Cu2(CO3)(OH)2 |
| H | ⓘ Ramsbeckite | (Cu,Zn)15(SO4)4(OH)22 · 6H2O |
| C | Carbon | |
| C | ⓘ Aragonite | CaCO3 |
| C | ⓘ Calcite | CaCO3 |
| C | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | Oxygen | |
| O | ⓘ Aragonite | CaCO3 |
| O | ⓘ Brochantite | Cu4(SO4)(OH)6 |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Chalcanthite | CuSO4 · 5H2O |
| O | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| O | ⓘ Cuprite | Cu2O |
| O | ⓘ Fayalite | Fe22+(SiO4) |
| O | ⓘ Forsterite | Mg2(SiO4) |
| O | ⓘ Goethite | Fe3+O(OH) |
| O | ⓘ Gypsum | CaSO4 · 2H2O |
| O | ⓘ Halotrichite | FeAl2(SO4)4 · 22H2O |
| O | ⓘ Hercynite | Fe2+Al2O4 |
| O | ⓘ Langite | Cu4(SO4)(OH)6 · 2H2O |
| O | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | ⓘ Ramsbeckite | (Cu,Zn)15(SO4)4(OH)22 · 6H2O |
| O | ⓘ Wüstite | FeO |
| Mg | Magnesium | |
| Mg | ⓘ Forsterite | Mg2(SiO4) |
| Al | Aluminium | |
| Al | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| Al | ⓘ Halotrichite | FeAl2(SO4)4 · 22H2O |
| Al | ⓘ Hercynite | Fe2+Al2O4 |
| Si | Silicon | |
| Si | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| Si | ⓘ Fayalite | Fe22+(SiO4) |
| Si | ⓘ Forsterite | Mg2(SiO4) |
| S | Sulfur | |
| S | ⓘ Anilite | Cu7S4 |
| S | ⓘ Bornite | Cu5FeS4 |
| S | ⓘ Brochantite | Cu4(SO4)(OH)6 |
| S | ⓘ Chalcanthite | CuSO4 · 5H2O |
| S | ⓘ Chalcocite | Cu2S |
| S | ⓘ Gypsum | CaSO4 · 2H2O |
| S | ⓘ Halotrichite | FeAl2(SO4)4 · 22H2O |
| S | ⓘ Langite | Cu4(SO4)(OH)6 · 2H2O |
| S | ⓘ Ramsbeckite | (Cu,Zn)15(SO4)4(OH)22 · 6H2O |
| S | ⓘ Troilite | FeS |
| Ca | Calcium | |
| Ca | ⓘ Aragonite | CaCO3 |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Gypsum | CaSO4 · 2H2O |
| Fe | Iron | |
| Fe | ⓘ Bornite | Cu5FeS4 |
| Fe | ⓘ Fayalite | Fe22+(SiO4) |
| Fe | ⓘ Goethite | Fe3+O(OH) |
| Fe | ⓘ Halotrichite | FeAl2(SO4)4 · 22H2O |
| Fe | ⓘ Hercynite | Fe2+Al2O4 |
| Fe | ⓘ Native Iron | Fe |
| Fe | ⓘ Troilite | FeS |
| Fe | ⓘ Wüstite | FeO |
| Cu | Copper | |
| Cu | ⓘ Anilite | Cu7S4 |
| Cu | ⓘ Bornite | Cu5FeS4 |
| Cu | ⓘ Brochantite | Cu4(SO4)(OH)6 |
| Cu | ⓘ Chalcanthite | CuSO4 · 5H2O |
| Cu | ⓘ Chalcocite | Cu2S |
| Cu | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| Cu | ⓘ Cuprite | Cu2O |
| Cu | ⓘ Native Copper | Cu |
| Cu | ⓘ Langite | Cu4(SO4)(OH)6 · 2H2O |
| Cu | ⓘ Malachite | Cu2(CO3)(OH)2 |
| Cu | ⓘ Ramsbeckite | (Cu,Zn)15(SO4)4(OH)22 · 6H2O |
| Zn | Zinc | |
| Zn | ⓘ Ramsbeckite | (Cu,Zn)15(SO4)4(OH)22 · 6H2O |
Other Regions, Features and Areas containing this locality
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References
Tumiati, S.; Casartelli, P.; Mambretti, A.; Martin, S.; Frizzo, P.; Rottoli, M. (2005) The Ancient Mine of Servette (Saint-Marcel, Val D'Aosta, Western Italian Alps): A Mineralogical, Metallurgical and Charcoal Analysis of Furnace Slags. Archaeometry, 47 (2). 317-340 doi:10.1111/j.1475-4754.2005.00204.x
Servette slag heaps, Servette-Chuc mining complex, Saint-Marcel, Aosta Valley, Italy