Monte Ray, Entracque, Cuneo Province, Piedmont, Italyi
Regional Level Types | |
---|---|
Monte Ray | Mountain |
Entracque | Commune |
Cuneo Province | Province |
Piedmont | Region |
Italy | - not defined - |
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Latitude & Longitude (WGS84):
44° 13' 45'' North , 7° 23' 9'' East
Latitude & Longitude (decimal):
Type:
KΓΆppen climate type:
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 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:
β Albite Formula: Na(AlSi3O8) References: |
β Anatase Formula: TiO2 References: |
β 'Apatite' Formula: Ca5(PO4)3(Cl/F/OH) References: |
β Axinite-(Fe) Formula: Ca2Fe2+Al2BSi4O15OH References: |
β Brookite Formula: TiO2 References: |
β Calcite Formula: CaCO3 References: |
β Cerussite Formula: PbCO3 |
β Dolomite Formula: CaMg(CO3)2 |
β Epidote Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) References: |
β 'Gadolinite Group' Formula: A2MQ2Si2O8Ο2 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 References: |
β Hematite Formula: Fe2O3 References: |
β 'K Feldspar' References: |
β 'K Feldspar var. Adularia' Formula: KAlSi3O8 References: |
β Malachite Formula: Cu2(CO3)(OH)2 |
β Marcasite Formula: FeS2 References: |
β Molybdenite Formula: MoS2 References: |
β Monazite-(Ce) Formula: Ce(PO4) References: |
β 'Pumpellyite Subgroup' Formula: Ca2XAl2[Si2O6(OH)][SiO4](OH)2A References: |
β Pyrite Formula: FeS2 Description: epidote
hematite
malachite
dolomite References: |
β Pyromorphite Formula: Pb5(PO4)3Cl References: |
β Pyrrhotite Formula: Fe1-xS References: |
β Quartz Formula: SiO2 References: |
β Rutile Formula: TiO2 References: |
β Sphalerite Formula: ZnS References: |
β Synchysite-(Ce) Formula: CaCe(CO3)2F References: |
β Xenotime-(Y) Formula: Y(PO4) References: |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
Group 2 - Sulphides and Sulfosalts | |||
---|---|---|---|
β | Sphalerite | 2.CB.05a | ZnS |
β | Pyrrhotite | 2.CC.10 | Fe1-xS |
β | Galena | 2.CD.10 | PbS |
β | Molybdenite | 2.EA.30 | MoS2 |
β | Pyrite | 2.EB.05a | FeS2 |
β | Marcasite | 2.EB.10a | FeS2 |
Group 4 - Oxides and Hydroxides | |||
β | Hematite | 4.CB.05 | Fe2O3 |
β | Quartz | 4.DA.05 | SiO2 |
β | Rutile | 4.DB.05 | TiO2 |
β | Anatase | 4.DD.05 | TiO2 |
β | Brookite | 4.DD.10 | TiO2 |
Group 5 - Nitrates and Carbonates | |||
β | Calcite | 5.AB.05 | CaCO3 |
β | Dolomite | 5.AB.10 | CaMg(CO3)2 |
β | Cerussite | 5.AB.15 | PbCO3 |
β | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
β | Synchysite-(Ce) | 5.BD.20c | CaCe(CO3)2F |
Group 8 - Phosphates, Arsenates and Vanadates | |||
β | Xenotime-(Y) | 8.AD.35 | Y(PO4) |
β | Monazite-(Ce) | 8.AD.50 | Ce(PO4) |
β | Pyromorphite | 8.BN.05 | Pb5(PO4)3Cl |
Group 9 - Silicates | |||
β | Axinite-(Fe) | 9.BD.20 | Ca2Fe2+Al2BSi4O15OH |
β | Epidote | 9.BG.05a | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
β | Albite | 9.FA.35 | Na(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' | - | A2MQ2Si2O8Ο2 |
List of minerals for each chemical element
H | Hydrogen | |
---|---|---|
H | β Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
H | β Axinite-(Fe) | Ca2Fe2+Al2BSi4O15OH |
H | β Malachite | Cu2(CO3)(OH)2 |
H | β Pumpellyite Subgroup | Ca2XAl2[Si2O6(OH)][SiO4](OH)2A |
H | β Apatite | Ca5(PO4)3(Cl/F/OH) |
B | Boron | |
B | β Axinite-(Fe) | Ca2Fe2+Al2BSi4O15OH |
C | Carbon | |
C | β Calcite | CaCO3 |
C | β Cerussite | PbCO3 |
C | β Dolomite | CaMg(CO3)2 |
C | β Malachite | Cu2(CO3)(OH)2 |
C | β Synchysite-(Ce) | CaCe(CO3)2F |
O | Oxygen | |
O | β K Feldspar var. Adularia | KAlSi3O8 |
O | β Albite | Na(AlSi3O8) |
O | β Anatase | TiO2 |
O | β Brookite | TiO2 |
O | β Calcite | CaCO3 |
O | β Cerussite | PbCO3 |
O | β Dolomite | CaMg(CO3)2 |
O | β Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
O | β Axinite-(Fe) | Ca2Fe2+Al2BSi4O15OH |
O | β Hematite | Fe2O3 |
O | β Malachite | Cu2(CO3)(OH)2 |
O | β Monazite-(Ce) | Ce(PO4) |
O | β Pumpellyite Subgroup | Ca2XAl2[Si2O6(OH)][SiO4](OH)2A |
O | β Pyromorphite | Pb5(PO4)3Cl |
O | β Quartz | SiO2 |
O | β Rutile | TiO2 |
O | β Synchysite-(Ce) | CaCe(CO3)2F |
O | β Xenotime-(Y) | Y(PO4) |
O | β Apatite | Ca5(PO4)3(Cl/F/OH) |
O | β Gadolinite Group | A2MQ2Si2O8Ο2 |
F | Fluorine | |
F | β Synchysite-(Ce) | CaCe(CO3)2F |
F | β Apatite | Ca5(PO4)3(Cl/F/OH) |
Na | Sodium | |
Na | β Albite | Na(AlSi3O8) |
Mg | Magnesium | |
Mg | β Dolomite | CaMg(CO3)2 |
Al | Aluminium | |
Al | β K Feldspar var. Adularia | KAlSi3O8 |
Al | β Albite | Na(AlSi3O8) |
Al | β Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
Al | β Axinite-(Fe) | Ca2Fe2+Al2BSi4O15OH |
Al | β Pumpellyite Subgroup | Ca2XAl2[Si2O6(OH)][SiO4](OH)2A |
Si | Silicon | |
Si | β K Feldspar var. Adularia | KAlSi3O8 |
Si | β Albite | Na(AlSi3O8) |
Si | β Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
Si | β Axinite-(Fe) | Ca2Fe2+Al2BSi4O15OH |
Si | β Pumpellyite Subgroup | Ca2XAl2[Si2O6(OH)][SiO4](OH)2A |
Si | β Quartz | SiO2 |
Si | β Gadolinite Group | A2MQ2Si2O8Ο2 |
P | Phosphorus | |
P | β Monazite-(Ce) | Ce(PO4) |
P | β Pyromorphite | Pb5(PO4)3Cl |
P | β Xenotime-(Y) | Y(PO4) |
P | β Apatite | Ca5(PO4)3(Cl/F/OH) |
S | Sulfur | |
S | β Galena | PbS |
S | β Marcasite | FeS2 |
S | β Molybdenite | MoS2 |
S | β Pyrite | FeS2 |
S | β Pyrrhotite | Fe1-xS |
S | β Sphalerite | ZnS |
Cl | Chlorine | |
Cl | β Pyromorphite | Pb5(PO4)3Cl |
Cl | β Apatite | Ca5(PO4)3(Cl/F/OH) |
K | Potassium | |
K | β K Feldspar var. Adularia | KAlSi3O8 |
Ca | Calcium | |
Ca | β Calcite | CaCO3 |
Ca | β Dolomite | CaMg(CO3)2 |
Ca | β Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
Ca | β Axinite-(Fe) | Ca2Fe2+Al2BSi4O15OH |
Ca | β Pumpellyite Subgroup | Ca2XAl2[Si2O6(OH)][SiO4](OH)2A |
Ca | β Synchysite-(Ce) | CaCe(CO3)2F |
Ca | β Apatite | Ca5(PO4)3(Cl/F/OH) |
Ti | Titanium | |
Ti | β Anatase | TiO2 |
Ti | β Brookite | TiO2 |
Ti | β Rutile | TiO2 |
Fe | Iron | |
Fe | β Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
Fe | β Axinite-(Fe) | Ca2Fe2+Al2BSi4O15OH |
Fe | β Hematite | Fe2O3 |
Fe | β Marcasite | FeS2 |
Fe | β Pyrite | FeS2 |
Fe | β Pyrrhotite | Fe1-xS |
Cu | Copper | |
Cu | β Malachite | Cu2(CO3)(OH)2 |
Zn | Zinc | |
Zn | β Sphalerite | ZnS |
Y | Yttrium | |
Y | β Xenotime-(Y) | Y(PO4) |
Mo | Molybdenum | |
Mo | β Molybdenite | MoS2 |
Ce | Cerium | |
Ce | β Monazite-(Ce) | Ce(PO4) |
Ce | β Synchysite-(Ce) | CaCe(CO3)2F |
Pb | Lead | |
Pb | β Cerussite | PbCO3 |
Pb | β Galena | PbS |
Pb | β Pyromorphite | Pb5(PO4)3Cl |
Other Regions, Features and Areas containing this locality
Eurasian PlateTectonic Plate
EuropeContinent
- The AlpsMountain Range
Italy
- Piedmont
- Cuneo Province
- Argentera GroupMountain Range
- Gesso ValleyValley
- Cuneo Province
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