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Servette slag heaps, Servette-Chuc mining complex, Saint-Marcel, Aosta Valley, Italyi
Regional Level Types
Servette slag heaps- not defined -
Servette-Chuc mining complexComplex
Saint-MarcelCommune
Aosta ValleyAutonomous Region
ItalyCountry

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Key
Latitude & Longitude (WGS84):
45° 42' 3'' North , 7° 27' 13'' East
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Saint Marcel930 (2014)3.4km
Nus1,826 (2014)4.5km
Neyran-Etabloz670 (2014)4.6km
Fénis1,667 (2015)4.9km
Villefranche593 (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 Strunz Dana Chemical Elements

Mineral List


20 valid minerals.

Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Anilite
Formula: Cu7S4
Reference: 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, 317-340.
Aragonite
Formula: CaCO3
Reference: Giovanni Fraccaro Collection
Bornite
Formula: Cu5FeS4
Reference: 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, 317-340.
Brochantite
Formula: Cu4(SO4)(OH)6
Reference: 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, 317-340.
Calcite
Formula: CaCO3
Reference: Marco Bonifazi Collection
Chalcocite
Formula: Cu2S
Reference: 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, 317-340.
Chrysocolla
Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Reference: Gordon, J. (2004): Mineral notes from Italy: Servette Mine and Strahlers' Display. Bulletin of the Mineralogical Society of Southern California, 74, 12; http://www.mineralsocal.org/bulletin/2004/2004_dec.htm; 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, 317-340.
Copper
Formula: Cu
Reference: 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, 317-340.
Cuprite
Formula: Cu2O
Reference: 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, 317-340.
Fayalite
Formula: Fe2+2SiO4
Reference: Gordon, J. (2004): Mineral notes from Italy: Servette Mine and Strahlers' Display. Bulletin of the Mineralogical Society of Southern California, 74, 12; http://www.mineralsocal.org/bulletin/2004/2004_dec.htm; 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, 317-340.
Forsterite
Formula: Mg2SiO4
Reference: 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, 317-340.
Goethite
Formula: α-Fe3+O(OH)
Reference: 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, 317-340.
Gypsum
Formula: CaSO4 · 2H2O
Reference: Giovanni Fraccaro Collection
Hercynite
Formula: Fe2+Al2O4
Reference: 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, 317-340.
Iron
Formula: Fe
Reference: 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, 317-340.
Langite
Formula: Cu4(SO4)(OH)6 · 2H2O
Reference: Giovanni Fraccaro Collection
Malachite
Formula: Cu2(CO3)(OH)2
Reference: Gordon, J. (2004): Mineral notes from Italy: Servette Mine and Strahlers' Display. Bulletin of the Mineralogical Society of Southern California, 74, 12; http://www.mineralsocal.org/bulletin/2004/2004_dec.htm
Ramsbeckite
Formula: (Cu,Zn)15(SO4)4(OH)22 · 6H2O
Reference: 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, 317-340.
Troilite
Formula: FeS
Reference: 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, 317-340.
Wüstite
Formula: FeO
Reference: Gordon, J. (2004): Mineral notes from Italy: Servette Mine and Strahlers' Display. Bulletin of the Mineralogical Society of Southern California, 74, 12; http://www.mineralsocal.org/bulletin/2004/2004_dec.htm; 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, 317-340.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Copper1.AA.05Cu
Iron1.AE.05Fe
Group 2 - Sulphides and Sulfosalts
Anilite2.BA.10Cu7S4
Bornite2.BA.15Cu5FeS4
Chalcocite2.BA.05Cu2S
Troilite2.CC.10FeS
Group 4 - Oxides and Hydroxides
Cuprite4.AA.10Cu2O
Goethite4.00.α-Fe3+O(OH)
Hercynite4.BB.05Fe2+Al2O4
Wüstite4.AB.25FeO
Group 5 - Nitrates and Carbonates
Aragonite5.AB.15CaCO3
Calcite5.AB.05CaCO3
Malachite5.BA.10Cu2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Brochantite7.BB.25Cu4(SO4)(OH)6
Gypsum7.CD.40CaSO4 · 2H2O
Langite7.DD.10Cu4(SO4)(OH)6 · 2H2O
Ramsbeckite7.DD.60(Cu,Zn)15(SO4)4(OH)22 · 6H2O
Group 9 - Silicates
Chrysocolla9.ED.20Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Fayalite9.AC.05Fe2+2SiO4
Forsterite9.AC.05Mg2SiO4

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Copper1.1.1.3Cu
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 2:1
Anilite2.4.7.5Cu7S4
Chalcocite2.4.7.1Cu2S
AmBnXp, with (m+n):p = 3:2
Bornite2.5.2.1Cu5FeS4
AmXp, with m:p = 1:1
Troilite2.8.9.1FeS
Group 4 - SIMPLE OXIDES
A2X
Cuprite4.1.1.1Cu2O
AX
Wüstite4.2.1.6FeO
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Goethite6.1.1.2α-Fe3+O(OH)
Group 7 - MULTIPLE OXIDES
AB2X4
Hercynite7.2.1.3Fe2+Al2O4
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Malachite16a.3.1.1Cu2(CO3)(OH)2
Group 29 - HYDRATED ACID AND NORMAL SULFATES
AXO4·xH2O
Gypsum29.6.3.1CaSO4 · 2H2O
Group 30 - ANHYDROUS SULFATES CONTAINING HYDROXYL OR HALOGEN
(AB)m(XO4)pZq, where m:p>2:1
Brochantite30.1.3.1Cu4(SO4)(OH)6
Group 31 - HYDRATED SULFATES CONTAINING HYDROXYL OR HALOGEN
(AB)4(XO4)Zq·xH2O
Langite31.4.3.1Cu4(SO4)(OH)6 · 2H2O
Ramsbeckite31.4.9.1(Cu,Zn)15(SO4)4(OH)22 · 6H2O
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with all cations in octahedral [6] coordination
Fayalite51.3.1.1Fe2+2SiO4
Forsterite51.3.1.2Mg2SiO4
Group 74 - PHYLLOSILICATES Modulated Layers
Modulated Layers with joined strips
Chrysocolla74.3.2.1Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Unclassified Minerals, Mixtures, etc.
Aragonite-CaCO3
Iron-Fe

List of minerals for each chemical element

HHydrogen
H MalachiteCu2(CO3)(OH)2
H BrochantiteCu4(SO4)(OH)6
H Ramsbeckite(Cu,Zn)15(SO4)4(OH)22 · 6H2O
H ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
H Goethiteα-Fe3+O(OH)
H GypsumCaSO4 · 2H2O
H LangiteCu4(SO4)(OH)6 · 2H2O
CCarbon
C MalachiteCu2(CO3)(OH)2
C AragoniteCaCO3
C CalciteCaCO3
OOxygen
O MalachiteCu2(CO3)(OH)2
O CupriteCu2O
O BrochantiteCu4(SO4)(OH)6
O Ramsbeckite(Cu,Zn)15(SO4)4(OH)22 · 6H2O
O ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
O Goethiteα-Fe3+O(OH)
O ForsteriteMg2SiO4
O FayaliteFe22+SiO4
O HercyniteFe2+Al2O4
O WüstiteFeO
O GypsumCaSO4 · 2H2O
O AragoniteCaCO3
O LangiteCu4(SO4)(OH)6 · 2H2O
O CalciteCaCO3
MgMagnesium
Mg ForsteriteMg2SiO4
AlAluminium
Al ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Al HercyniteFe2+Al2O4
SiSilicon
Si ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Si ForsteriteMg2SiO4
Si FayaliteFe22+SiO4
SSulfur
S BrochantiteCu4(SO4)(OH)6
S Ramsbeckite(Cu,Zn)15(SO4)4(OH)22 · 6H2O
S BorniteCu5FeS4
S AniliteCu7S4
S TroiliteFeS
S ChalcociteCu2S
S GypsumCaSO4 · 2H2O
S LangiteCu4(SO4)(OH)6 · 2H2O
CaCalcium
Ca GypsumCaSO4 · 2H2O
Ca AragoniteCaCO3
Ca CalciteCaCO3
FeIron
Fe Goethiteα-Fe3+O(OH)
Fe FayaliteFe22+SiO4
Fe HercyniteFe2+Al2O4
Fe IronFe
Fe BorniteCu5FeS4
Fe TroiliteFeS
Fe WüstiteFeO
CuCopper
Cu MalachiteCu2(CO3)(OH)2
Cu CupriteCu2O
Cu BrochantiteCu4(SO4)(OH)6
Cu Ramsbeckite(Cu,Zn)15(SO4)4(OH)22 · 6H2O
Cu ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Cu CopperCu
Cu BorniteCu5FeS4
Cu AniliteCu7S4
Cu ChalcociteCu2S
Cu LangiteCu4(SO4)(OH)6 · 2H2O
ZnZinc
Zn Ramsbeckite(Cu,Zn)15(SO4)4(OH)22 · 6H2O

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
- Gordon, J. (2004): Mineral notes from Italy: Servette Mine and Strahlers' Display. Bulletin of the Mineralogical Society of Southern California, 74, 12; http://www.mineralsocal.org/bulletin/2004/2004_dec.htm
- 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, 317-340.

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