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Gaeta Mine, San Siro, Como Province, Lombardy, Italyi
Regional Level Types
Gaeta MineMine
San SiroCommune
Como ProvinceProvince
LombardyRegion
ItalyCountry

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Latitude & Longitude (WGS84):
46° 2' 40'' North , 9° 15' 6'' East
Latitude & Longitude (decimal):
46.04471,9.25185
GeoHash:
G#:u0ntfw0vz
GRN:
N31E05
Type:
Mine
Köppen climate type:
Dfc : Subarctic climate
Nearest Settlements:
PlacePopulationDistance
Plesio550(2014)1.8km
San Siro1,712(2014)2.7km
Menaggio3,178(2014)2.8km
Grandola ed Uniti1,358(2013)3.7km
Codogna-Cardano892(2014)3.7km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Club Cercatori di Minerali e Fossili TicinoViganello, Ticino22km
Mindat Locality ID:
208510
Long-form identifier:
mindat:1:2:208510:7
GUID (UUID V4):
0
Name(s) in local language(s):
Miniera della Gaeta, San Siro, Provincia di Como, Lombardia, Italia


Old mine located on the eastern slope of Sasso Rancio at La Gaeta cape, between Menaggio and Acquaseria (Sant'Abbondio). The mine is now part of the municipality of San Siro, formed on 29 November 2002 through the merger of the former municipalities of Sant'Abbondio and Santa Maria Rezzonico. The mine mainly exploited Mn-rich limonite and pyrite veins in a Pb-Zn + Fe strata-bound deposit hosted in Anisian (Middle Triassic) limestone.

The metallogenic frame is similar to that of the ore deposits found in the Varese Province and quite different from the Carnian (Late Triassic) deposits of the "Grigne area" of the Lecco and Bergamo provinces.

Select Mineral List Type

StandardDetailedGalleryStrunzChemical Elements

Detailed Mineral List:

ⓘAnglesite
Formula:PbSO4
ⓘBaryte
Formula:BaSO4
ⓘCalcite
Formula:CaCO3
ⓘCerussite
Formula:PbCO3
ⓘDolomite
Formula:CaMg(CO3)2
ⓘGalena
Formula:PbS
ⓘ'Limonite'
ⓘMarcasite
Formula:FeS2
ⓘMelanterite
Formula:Fe2+(H2O)6SO4 · H2O
ⓘPyrite
Formula:FeS2
ⓘSphalerite
Formula:ZnS
ⓘ'Tetrahedrite Subgroup'
Formula:Cu6(Cu4C2+2)Sb4S12S
ⓘWulfenite
Formula:Pb(MoO4)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘSphalerite2.CB.05aZnS
ⓘGalena2.CD.10PbS
ⓘPyrite2.EB.05aFeS2
ⓘMarcasite2.EB.10aFeS2
ⓘ'Tetrahedrite Subgroup'2.GB.05Cu6(Cu4C2+2)Sb4S12S
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘDolomite5.AB.10CaMg(CO3)2
ⓘCerussite5.AB.15PbCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘAnglesite7.AD.35PbSO4
ⓘBaryte7.AD.35BaSO4
ⓘMelanterite7.CB.35Fe2+(H2O)6SO4 · H2O
ⓘWulfenite7.GA.05Pb(MoO4)
Unclassified
ⓘ'Limonite'-

List of minerals for each chemical element

HHydrogen
HⓘMelanteriteFe2+(H2O)6SO4 · H2O
CCarbon
CⓘCalciteCaCO3
CⓘCerussitePbCO3
CⓘDolomiteCaMg(CO3)2
OOxygen
OⓘAnglesitePbSO4
OⓘBaryteBaSO4
OⓘCalciteCaCO3
OⓘCerussitePbCO3
OⓘDolomiteCaMg(CO3)2
OⓘMelanteriteFe2+(H2O)6SO4 · H2O
OⓘWulfenitePb(MoO4)
MgMagnesium
MgⓘDolomiteCaMg(CO3)2
SSulfur
SⓘAnglesitePbSO4
SⓘBaryteBaSO4
SⓘGalenaPbS
SⓘMarcasiteFeS2
SⓘMelanteriteFe2+(H2O)6SO4 · H2O
SⓘPyriteFeS2
SⓘSphaleriteZnS
SⓘTetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
CaCalcium
CaⓘCalciteCaCO3
CaⓘDolomiteCaMg(CO3)2
FeIron
FeⓘMarcasiteFeS2
FeⓘMelanteriteFe2+(H2O)6SO4 · H2O
FeⓘPyriteFeS2
CuCopper
CuⓘTetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
ZnZinc
ZnⓘSphaleriteZnS
MoMolybdenum
MoⓘWulfenitePb(MoO4)
SbAntimony
SbⓘTetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
BaBarium
BaⓘBaryteBaSO4
PbLead
PbⓘAnglesitePbSO4
PbⓘCerussitePbCO3
PbⓘGalenaPbS
PbⓘWulfenitePb(MoO4)

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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, pleaseregister so you can add to our database. This locality information is for reference purposes only. You should never attempt tovisit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holdersfor access and that you are aware of all safety precautions necessary.

References

Jervis, Guglielmo (1873)I tesori sotterranei dell'Italia descrizione topografica e geologica di tutte le localita nel Regno d'Italia [The underground treasures of Italy topographical and geological description of all the locations in the Kingdom of Italy] Vol. 1 - Regione Della Alpi.
Repossi, E. (1902): Osservazioni stratigrafiche sulla Val d'Intelvi, la Val Solda e la Val Menaggio. Atti Società Italiana Scienze Naturali, 41, 129-175
Repossi, E. (1904): Su alcuni minerali della Gaeta (Lago di Como). Atti Società Italiana Scienze Naturali, 43, 422-436
Repossi, E. (1907): Über einige Mineralien der Gaeta-Grube (Comer-See). Zeitschrift für Kristallographie, 42, 72
Hegemann, Friedrich (1949) Die Herkunft des Mo, V, As und Cr im Wulfenit der alpinen Blei-Zinklagerstätten.Heidelberger Beiträge zur Mineralogie und Petrographie, 1 (5). 690-715doi:10.1007/bf01111680
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To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844.doi:10.2138/am-2024-9486.
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