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Monte Ray, Entracque, Cuneo Province, Piedmont, Italyi
Regional Level Types
Monte RayMountain
EntracqueCommune
Cuneo ProvinceProvince
PiedmontRegion
Italy- not defined -

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Latitude & Longitude (WGS84):
44° 13' 45'' North , 7° 23' 9'' East
Latitude & Longitude (decimal):
KΓΆppen climate type:
Nearest Settlements:
PlacePopulationDistance
Entracque722 (2014)1.6km
Valdieri500 (2014)5.5km
Roaschia120 (2014)7.2km
Andonno231 (2014)8.1km
Festiona132 (2014)8.5km
Mindat Locality ID:
189847
Long-form identifier:
mindat:1:2:189847:0
GUID (UUID V4):
dbc4510a-15e8-4636-b4fc-43b323f92380
Name(s) in local language(s):
Monte Ray, Entracque, Valle Gesso, Cuneo, Piemonte, Italia


Underground works during building of the hydroelectric power station "Luigi Einaudi" (the largest in Italy).

A complex of galleries was excavated inside Monte Ray. It includes:
- the Piastra gallery (galleria della Piastra), crossing Monte Ray in WNW-ESE direction and conveying water from Sant'Anna di Valdieri to the Piastra reservoir;
- the gallery at 950 m near the piezometric well, 50 m above the road leading to the Piastra reservoir;
- the Chiotas-Piastra and Rovina-Piastra galleries, hosting the pressure pipes which connect the upper water reservoirs (Chiotas reservoir and Rovina lake) to the lower reservoir (Piastra reservoir);
- the pedestrian gallery, used in winter to access the upper reservoirs.
During the construction of the hydroelectric complex, three windows were opened outwards at level 1120 m, 1470 m and 1840 m in order to supply pipes and other materials by means of a service road.

Mineral finds are recorded both inside the galleries and in the abundant rock material dumped outside the mountain. In particular: the best specimens of anatase and marcasite were recovered inside the Rovina-Piastra gallery; axinite-(Fe) crystals, up to 1 cm in length, were found in a small system of veinlets and clefts located at 200 m from the portal of the gallery at 950 m; the dump from Galleria della Piastra yielded rutile and calcite with complex habits; the dump from the window at level 1120 m (see coordinates) yielded anatase, monazite-(Ce), synchysite-(Ce), and xenotime-(Y); the dump from the window at level 1470 m yielded anatase and pyrrhotite; galena crystals were found in the dump from the window at level 1840 m. Galena and secondary minerals have been found also in open-air outcrops.

An interesting Y-dominant gadolinite-datolite solid solution, as sprays of colourless acicular crystals to 0.1 mm long, has been recently identified (Ciriotti et al., 2020).

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral 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 Diagram

Detailed Mineral List:

β“˜ Albite
Formula: Na(AlSi3O8)
β“˜ Anatase
Formula: TiO2
References:
β“˜ 'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
β“˜ Axinite-(Fe)
Formula: Ca2Fe2+Al2BSi4O15OH
β“˜ Brookite
Formula: TiO2
β“˜ Calcite
Formula: CaCO3
β“˜ Cerussite
Formula: PbCO3
β“˜ Dolomite
Formula: CaMg(CO3)2
β“˜ Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
β“˜ 'Gadolinite Group'
Formula: A2MQ2Si2O8Ο†2
Description: Y-dominant gadolinite-datolite solid solution, as sprays of colourless acicular crystals to 0.1 mm long on anatase and quartz.
β“˜ Galena
Formula: PbS
β“˜ Hematite
Formula: Fe2O3
β“˜ 'K Feldspar'
β“˜ 'K Feldspar var. Adularia'
Formula: KAlSi3O8
β“˜ Malachite
Formula: Cu2(CO3)(OH)2
β“˜ Marcasite
Formula: FeS2
β“˜ Molybdenite
Formula: MoS2
β“˜ Monazite-(Ce)
Formula: Ce(PO4)
β“˜ 'Pumpellyite Subgroup'
Formula: Ca2XAl2[Si2O6(OH)][SiO4](OH)2A
β“˜ Pyrite
Formula: FeS2
Description: epidote hematite malachite dolomite
β“˜ Pyromorphite
Formula: Pb5(PO4)3Cl
β“˜ Pyrrhotite
Formula: Fe1-xS
β“˜ Quartz
Formula: SiO2
β“˜ Rutile
Formula: TiO2
β“˜ Sphalerite
Formula: ZnS
β“˜ Synchysite-(Ce)
Formula: CaCe(CO3)2F
β“˜ Xenotime-(Y)
Formula: Y(PO4)

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
β“˜Sphalerite2.CB.05aZnS
β“˜Pyrrhotite2.CC.10Fe1-xS
β“˜Galena2.CD.10PbS
β“˜Molybdenite2.EA.30MoS2
β“˜Pyrite2.EB.05aFeS2
β“˜Marcasite2.EB.10aFeS2
Group 4 - Oxides and Hydroxides
β“˜Hematite4.CB.05Fe2O3
β“˜Quartz4.DA.05SiO2
β“˜Rutile4.DB.05TiO2
β“˜Anatase4.DD.05TiO2
β“˜Brookite4.DD.10TiO2
Group 5 - Nitrates and Carbonates
β“˜Calcite5.AB.05CaCO3
β“˜Dolomite5.AB.10CaMg(CO3)2
β“˜Cerussite5.AB.15PbCO3
β“˜Malachite5.BA.10Cu2(CO3)(OH)2
β“˜Synchysite-(Ce)5.BD.20cCaCe(CO3)2F
Group 8 - Phosphates, Arsenates and Vanadates
β“˜Xenotime-(Y)8.AD.35Y(PO4)
β“˜Monazite-(Ce)8.AD.50Ce(PO4)
β“˜Pyromorphite8.BN.05Pb5(PO4)3Cl
Group 9 - Silicates
β“˜Axinite-(Fe)9.BD.20Ca2Fe2+Al2BSi4O15OH
β“˜Epidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
β“˜Albite9.FA.35Na(AlSi3O8)
Unclassified
β“˜'Apatite'-Ca5(PO4)3(Cl/F/OH)
β“˜'K Feldspar
var. Adularia'
-KAlSi3O8
β“˜''-
β“˜'Pumpellyite Subgroup'-Ca2XAl2[Si2O6(OH)][SiO4](OH)2A
β“˜'Gadolinite Group'-A2MQ2Si2O8Ο†2

List of minerals for each chemical element

HHydrogen
Hβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Hβ“˜ Axinite-(Fe)Ca2Fe2+Al2BSi4O15OH
Hβ“˜ MalachiteCu2(CO3)(OH)2
Hβ“˜ Pumpellyite SubgroupCa2XAl2[Si2O6(OH)][SiO4](OH)2A
Hβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
BBoron
Bβ“˜ Axinite-(Fe)Ca2Fe2+Al2BSi4O15OH
CCarbon
Cβ“˜ CalciteCaCO3
Cβ“˜ CerussitePbCO3
Cβ“˜ DolomiteCaMg(CO3)2
Cβ“˜ MalachiteCu2(CO3)(OH)2
Cβ“˜ Synchysite-(Ce)CaCe(CO3)2F
OOxygen
Oβ“˜ K Feldspar var. AdulariaKAlSi3O8
Oβ“˜ AlbiteNa(AlSi3O8)
Oβ“˜ AnataseTiO2
Oβ“˜ BrookiteTiO2
Oβ“˜ CalciteCaCO3
Oβ“˜ CerussitePbCO3
Oβ“˜ DolomiteCaMg(CO3)2
Oβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Oβ“˜ Axinite-(Fe)Ca2Fe2+Al2BSi4O15OH
Oβ“˜ HematiteFe2O3
Oβ“˜ MalachiteCu2(CO3)(OH)2
Oβ“˜ Monazite-(Ce)Ce(PO4)
Oβ“˜ Pumpellyite SubgroupCa2XAl2[Si2O6(OH)][SiO4](OH)2A
Oβ“˜ PyromorphitePb5(PO4)3Cl
Oβ“˜ QuartzSiO2
Oβ“˜ RutileTiO2
Oβ“˜ Synchysite-(Ce)CaCe(CO3)2F
Oβ“˜ Xenotime-(Y)Y(PO4)
Oβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
Oβ“˜ Gadolinite GroupA2MQ2Si2O8Ο†2
FFluorine
Fβ“˜ Synchysite-(Ce)CaCe(CO3)2F
Fβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
NaSodium
Naβ“˜ AlbiteNa(AlSi3O8)
MgMagnesium
Mgβ“˜ DolomiteCaMg(CO3)2
AlAluminium
Alβ“˜ K Feldspar var. AdulariaKAlSi3O8
Alβ“˜ AlbiteNa(AlSi3O8)
Alβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Alβ“˜ Axinite-(Fe)Ca2Fe2+Al2BSi4O15OH
Alβ“˜ Pumpellyite SubgroupCa2XAl2[Si2O6(OH)][SiO4](OH)2A
SiSilicon
Siβ“˜ K Feldspar var. AdulariaKAlSi3O8
Siβ“˜ AlbiteNa(AlSi3O8)
Siβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Siβ“˜ Axinite-(Fe)Ca2Fe2+Al2BSi4O15OH
Siβ“˜ Pumpellyite SubgroupCa2XAl2[Si2O6(OH)][SiO4](OH)2A
Siβ“˜ QuartzSiO2
Siβ“˜ Gadolinite GroupA2MQ2Si2O8Ο†2
PPhosphorus
Pβ“˜ Monazite-(Ce)Ce(PO4)
Pβ“˜ PyromorphitePb5(PO4)3Cl
Pβ“˜ Xenotime-(Y)Y(PO4)
Pβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
SSulfur
Sβ“˜ GalenaPbS
Sβ“˜ MarcasiteFeS2
Sβ“˜ MolybdeniteMoS2
Sβ“˜ PyriteFeS2
Sβ“˜ PyrrhotiteFe1-xS
Sβ“˜ SphaleriteZnS
ClChlorine
Clβ“˜ PyromorphitePb5(PO4)3Cl
Clβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
Kβ“˜ K Feldspar var. AdulariaKAlSi3O8
CaCalcium
Caβ“˜ CalciteCaCO3
Caβ“˜ DolomiteCaMg(CO3)2
Caβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Caβ“˜ Axinite-(Fe)Ca2Fe2+Al2BSi4O15OH
Caβ“˜ Pumpellyite SubgroupCa2XAl2[Si2O6(OH)][SiO4](OH)2A
Caβ“˜ Synchysite-(Ce)CaCe(CO3)2F
Caβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
TiTitanium
Tiβ“˜ AnataseTiO2
Tiβ“˜ BrookiteTiO2
Tiβ“˜ RutileTiO2
FeIron
Feβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Feβ“˜ Axinite-(Fe)Ca2Fe2+Al2BSi4O15OH
Feβ“˜ HematiteFe2O3
Feβ“˜ MarcasiteFeS2
Feβ“˜ PyriteFeS2
Feβ“˜ PyrrhotiteFe1-xS
CuCopper
Cuβ“˜ MalachiteCu2(CO3)(OH)2
ZnZinc
Znβ“˜ SphaleriteZnS
YYttrium
Yβ“˜ Xenotime-(Y)Y(PO4)
MoMolybdenum
Moβ“˜ MolybdeniteMoS2
CeCerium
Ceβ“˜ Monazite-(Ce)Ce(PO4)
Ceβ“˜ Synchysite-(Ce)CaCe(CO3)2F
PbLead
Pbβ“˜ CerussitePbCO3
Pbβ“˜ GalenaPbS
Pbβ“˜ PyromorphitePb5(PO4)3Cl

Other Regions, Features and Areas containing this locality

Eurasian PlateTectonic Plate
EuropeContinent
Italy

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References

 
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