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Rio Siogna Mine, Isola Grande, Murialdo, Savona Province, Liguria, Italyi
Regional Level Types
Rio Siogna MineMine
Isola GrandeVillage
MurialdoCommune
Savona ProvinceProvince
LiguriaRegion
ItalyCountry

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PhotosMapsSearchMineralogy
08676760017272017253033.jpg
View of the mine entrance

Rio Siogna Mine, Isola Grande, Murialdo, Savona Province, Liguria, Italy
09756010017272017275478.jpg
Collapsed adit

Rio Siogna Mine, Isola Grande, Murialdo, Savona Province, Liguria, Italy
09939990017272017294911.jpg
Danger! Explosives!

Rio Siogna Mine, Isola Grande, Murialdo, Savona Province, Liguria, Italy
08676760017272017253033.jpg
View of the mine entrance

Rio Siogna Mine, Isola Grande, Murialdo, Savona Province, Liguria, Italy
09756010017272017275478.jpg
Collapsed adit

Rio Siogna Mine, Isola Grande, Murialdo, Savona Province, Liguria, Italy
09939990017272017294911.jpg
Danger! Explosives!

Rio Siogna Mine, Isola Grande, Murialdo, Savona Province, Liguria, Italy
08676760017272017253033.jpg
View of the mine entrance

Rio Siogna Mine, Isola Grande, Murialdo, Savona Province, Liguria, Italy
09756010017272017275478.jpg
Collapsed adit

Rio Siogna Mine, Isola Grande, Murialdo, Savona Province, Liguria, Italy
Latitude & Longitude (WGS84):
44° 17' 10'' North , 8° 7' 37'' East
Latitude & Longitude (decimal):
44.28616,8.12719
GRN:
N30E05
Type:
Mine
Köppen climate type:
Csb : Warm-summer Mediterranean climate
Nearest Settlements:
PlacePopulationDistance
Isolagrande107 (2014)1.1km
Piano386 (2014)4.6km
Massimino104 (2014)4.7km
Murialdo871 (2012)4.7km
Calizzano1,138 (2014)5.6km
Mindat Locality ID:
4358
Long-form identifier:
mindat:1:2:4358:1
GUID (UUID V4):
0
Other/historical names associated with this locality:
Isolagrande-Murialdo graphite mine
Other Languages:
Italian:
Miniera di Isolagrande (Miniera Rio Siogna), Murialdo, provincia di Savona, Liguria, Italia


Old graphite mine, definitively closed in 1965, located in the area of Bric Camulera with numerous galleries opened in the little valleys of Rio Siogna, Rio Azzini, Rio Farian, Rio Maglia, Rio Botta, and Rio Euri.

Schröckingerite has been found in one of the galleries as tiny, yellow, brittle crystals showing a strong fluorescence. This mineral is not genetically related to the host rock, a Verrucano conglomerate with traces of graphite. Its genesis is probably due to the percolation of U-rich fluids origined from an upper horizon hosting an uranium mineralisation not discovered yet [Permian schists, similar to the U-bearing ones of the southern Cuneo Province (Piedmont) and Ponte Scalincio (Liguria), crop out outside the gallery].

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

Mineral list contains entries from the region specified including sub-localities

16 valid minerals.

Detailed Mineral List:

ⓘ 'Agardite'
ⓘ Agardite-(Ce)
Formula: CeCu6(AsO4)3(OH)6 · 3H2O
References:
Balestra-VignolaIdentified by Pietro Vignola: XRD, SEM-EDS
ⓘ Anatase
Formula: TiO2
ⓘ Aragonite
Formula: CaCO3
ⓘ Chalcopyrite
Formula: CuFeS2
ⓘ 'Chlorite Group'
ⓘ Fluorite
Formula: CaF2
ⓘ Graphite
Formula: C
ⓘ Gypsum
Formula: CaSO4 · 2H2O
ⓘ Hematite
Formula: Fe2O3
ⓘ 'K Feldspar'
ⓘ 'K Feldspar var. Adularia'
Formula: KAlSi3O8
ⓘ 'Limonite'
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ Malachite
Formula: Cu2(CO3)(OH)2
ⓘ 'Mica Group'
ⓘ Monazite-(Ce)
Formula: Ce(PO4)
ⓘ Pyrite
Formula: FeS2
ⓘ Quartz
Formula: SiO2
ⓘ Redgillite
Formula: Cu6(SO4)(OH)10 · H2O
References:
Corrado Balestra collectionIdentified by Corrado Balestra: Visual Identification, XRD, SEM-EDS, Raman Spectroscopy
ⓘ Schröckingerite
Formula: NaCa3(UO2)(CO3)3(SO4)F · 10H2O
ⓘ Scorodite
Formula: Fe3+AsO4 · 2H2O
References:
Corrado Balestra collectionIdentified by Corrado Balestra: Visual Identification, XRD, SEM-EDS, Raman Spectroscopy
ⓘ 'Tetrahedrite Group'
Formula: M2(A6)M1(B4 C2)X3(D4)S1(Y12)S2(Z)
ⓘ 'Tetrahedrite Subgroup'
Formula: Cu6(Cu4C2+2)Sb4S12S
References:
Corrado Balestra collectionIdentified by Corrado Balestra: Visual Identification, XRD, SEM-EDS, Raman Spectroscopy

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘGraphite1.CB.05aC
Group 2 - Sulphides and Sulfosalts
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘPyrite2.EB.05aFeS2
ⓘ'Tetrahedrite Subgroup'2.GB.05Cu6(Cu4C2+2)Sb4S12S
Group 3 - Halides
ⓘFluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘHematite4.CB.05Fe2O3
ⓘQuartz4.DA.05SiO2
ⓘAnatase4.DD.05TiO2
Group 5 - Nitrates and Carbonates
ⓘAragonite5.AB.15CaCO3
ⓘMalachite5.BA.10Cu2(CO3)(OH)2
ⓘSchröckingerite5.EG.05NaCa3(UO2)(CO3)3(SO4)F · 10H2O
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘGypsum7.CD.40CaSO4 · 2H2O
ⓘRedgillite7.DD.70Cu6(SO4)(OH)10 · H2O
Group 8 - Phosphates, Arsenates and Vanadates
ⓘMonazite-(Ce)8.AD.50Ce(PO4)
ⓘScorodite8.CD.10Fe3+AsO4 · 2H2O
ⓘAgardite-(Ce)8.DL.15CeCu6(AsO4)3(OH)6 · 3H2O
Unclassified
ⓘ'K Feldspar
var. Adularia'		-KAlSi3O8
ⓘ'Agardite'-
ⓘ'Chlorite Group'-
ⓘ'Limonite'-
ⓘ'Mica Group'-
ⓘ'K Feldspar'-
ⓘ'Tetrahedrite Group'-M2(A6)M1(B4 C2)X3(D4)S1(Y12)S2(Z)

List of minerals for each chemical element

HHydrogen
Hⓘ Agardite-(Ce)CeCu6(AsO4)3(OH)6 · 3H2O
Hⓘ GypsumCaSO4 · 2H2O
Hⓘ MalachiteCu2(CO3)(OH)2
Hⓘ SchröckingeriteNaCa3(UO2)(CO3)3(SO4)F · 10H2O
Hⓘ ScoroditeFe3+AsO4 · 2H2O
Hⓘ RedgilliteCu6(SO4)(OH)10 · H2O
CCarbon
Cⓘ AragoniteCaCO3
Cⓘ GraphiteC
Cⓘ MalachiteCu2(CO3)(OH)2
Cⓘ SchröckingeriteNaCa3(UO2)(CO3)3(SO4)F · 10H2O
OOxygen
Oⓘ K Feldspar var. AdulariaKAlSi3O8
Oⓘ Agardite-(Ce)CeCu6(AsO4)3(OH)6 · 3H2O
Oⓘ AnataseTiO2
Oⓘ AragoniteCaCO3
Oⓘ GypsumCaSO4 · 2H2O
Oⓘ HematiteFe2O3
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ MalachiteCu2(CO3)(OH)2
Oⓘ Monazite-(Ce)Ce(PO4)
Oⓘ QuartzSiO2
Oⓘ SchröckingeriteNaCa3(UO2)(CO3)3(SO4)F · 10H2O
Oⓘ ScoroditeFe3+AsO4 · 2H2O
Oⓘ RedgilliteCu6(SO4)(OH)10 · H2O
FFluorine
Fⓘ FluoriteCaF2
Fⓘ SchröckingeriteNaCa3(UO2)(CO3)3(SO4)F · 10H2O
NaSodium
Naⓘ SchröckingeriteNaCa3(UO2)(CO3)3(SO4)F · 10H2O
AlAluminium
Alⓘ K Feldspar var. AdulariaKAlSi3O8
SiSilicon
Siⓘ K Feldspar var. AdulariaKAlSi3O8
Siⓘ QuartzSiO2
PPhosphorus
Pⓘ Monazite-(Ce)Ce(PO4)
SSulfur
Sⓘ ChalcopyriteCuFeS2
Sⓘ GypsumCaSO4 · 2H2O
Sⓘ PyriteFeS2
Sⓘ SchröckingeriteNaCa3(UO2)(CO3)3(SO4)F · 10H2O
Sⓘ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
Sⓘ RedgilliteCu6(SO4)(OH)10 · H2O
Sⓘ Tetrahedrite GroupM2(A6)M1(B4 C2)X3(D4)S1(Y12)S2(Z)
KPotassium
Kⓘ K Feldspar var. AdulariaKAlSi3O8
CaCalcium
Caⓘ AragoniteCaCO3
Caⓘ FluoriteCaF2
Caⓘ GypsumCaSO4 · 2H2O
Caⓘ SchröckingeriteNaCa3(UO2)(CO3)3(SO4)F · 10H2O
TiTitanium
Tiⓘ AnataseTiO2
FeIron
Feⓘ ChalcopyriteCuFeS2
Feⓘ HematiteFe2O3
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ PyriteFeS2
Feⓘ ScoroditeFe3+AsO4 · 2H2O
CuCopper
Cuⓘ Agardite-(Ce)CeCu6(AsO4)3(OH)6 · 3H2O
Cuⓘ ChalcopyriteCuFeS2
Cuⓘ MalachiteCu2(CO3)(OH)2
Cuⓘ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
Cuⓘ RedgilliteCu6(SO4)(OH)10 · H2O
AsArsenic
Asⓘ Agardite-(Ce)CeCu6(AsO4)3(OH)6 · 3H2O
Asⓘ ScoroditeFe3+AsO4 · 2H2O
SbAntimony
Sbⓘ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
CeCerium
Ceⓘ Agardite-(Ce)CeCu6(AsO4)3(OH)6 · 3H2O
Ceⓘ Monazite-(Ce)Ce(PO4)
UUranium
Uⓘ SchröckingeriteNaCa3(UO2)(CO3)3(SO4)F · 10H2O

Localities in this Region

Italy

Other Regions, Features and Areas containing this locality

Eurasian PlateTectonic Plate
  • AlpsAccretionary Complex
EuropeContinent

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Antofilli, Mario, Borgo, Emilio, Palenzona, Andrea (1985) I nostri minerali : geologia e mineralogia in Liguria (2nd ed.). Edizioni Melita.
Armellino, G. (2002) La Valbormida mineralogica è anche radioattiva! Notiziario di Mineralogia del Ferrania Club, 16, 20-21
Verrini, A. (2005) Nero come la grafite. Settant'anni di attività mineraria in un piccolo paese della Valbormida. Gruppo Grotte CAI Novara - Istituto Internazionale di Studi Liguri, Genova, 135 pp.
Bracco, R., Balestra, C., Esposito, F., and Odicino, G. (2006) Ponte Scalincio e i "radioattivi" della Liguria. Prie, 2, 106-111.
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