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Groppi di Collegio (Collegio), Corte Brugnatella, Trebbia Valley, Piacenza Province, Emilia-Romagna, Italy

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Latitude & Longitude (WGS84): 44° 43' 32'' North , 9° 20' 2'' East
Latitude & Longitude (decimal): 44.72556,9.33389
GeoHash:G#: spywkqh9p
Area:5.0 km2
Köppen climate type:Cfb : Temperate oceanic climate
Name(s) in local language(s):Groppi di Collegio (Collegio), Corte Brugnatella, Val Trebbia, Provincia di Piacenza , Emilia-Romagna, Italia


Minerals are found in sandstone and in more or less hydrothermalised serpentinites.

Near Collegio, blue crystals of anatase, in association with baryte and quartz, have been found in sandstone (Baldizzone, 2008; Agliuzza et al., 2014). In more or less hydrothermalised serpentinites, outcropping not far from the former site, the following minerals have been described: orange-brown anatase, calcite, chalcopyrite, galena, jamborite, millerite, quartz, sphalerite, and talc (Agliuzza et al., 2014).

The locality of Collegio can be reached starting from Marsaglia, following the state road SS 45 for 3 km until the crossroads to Pieve di Montarsolo, crossing the villages of Lago and Poggio Rondino. Then, you have to leave the car in the middle of the country and walk along a dirt road for 1.5 km until the barracks of the State Forestry Corps (C.F.S.). The mineral site in sandstone can be reached in only a few minutes walk from the barracks, along a path, just after a stream at 1063 m of altitude.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


12 valid minerals.

Detailed Mineral List:

Anatase
Formula: TiO2
Reference: - Baldizzone, G. (2008): I minerali del piacentino – come riconoscerli dove trovarli. Baldizzone G., stampa Tipolito Farnese, Piacenza, 113 pp.
Baryte
Formula: BaSO4
Reference: - Baldizzone, G. (2008): I minerali del piacentino – come riconoscerli dove trovarli. Baldizzone G., stampa Tipolito Farnese, Piacenza, 113 pp.
Brookite
Formula: TiO2
Reference: - Baldizzone, G. (2008): I minerali del piacentino – come riconoscerli dove trovarli. Baldizzone G., stampa Tipolito Farnese, Piacenza, 113 pp.
Calcite
Formula: CaCO3
Reference: Agliuzza F., Esposito M., Odicino G. (2014): Siti d’interesse mineralogico (noti e meno noti) in Alta Val Trebbia. Parte Seconda: Zibaldone di località piacentine. Prie, 10, 11-29.
Chalcopyrite
Formula: CuFeS2
Reference: Agliuzza F., Esposito M., Odicino G. (2014): Siti d’interesse mineralogico (noti e meno noti) in Alta Val Trebbia. Parte Seconda: Zibaldone di località piacentine. Prie, 10, 11-29.
Galena
Formula: PbS
Reference: G. Baldizzone 2008 - I Minerali del Piacentino
Jamborite
Formula: Ni2+1-xCo3+x(OH)2-x(SO4)x · nH2O
Reference: Agliuzza F., Esposito M., Odicino G. (2014): Siti d’interesse mineralogico (noti e meno noti) in Alta Val Trebbia. Parte Seconda: Zibaldone di località piacentine. Prie, 10, 11-29.
Millerite
Formula: NiS
Reference: G. Baldizzone 2008 - I Minerali del Piacentino
Pyrite
Formula: FeS2
Reference: G. Baldizzone 2008 - I Minerali del Piacentino
Quartz
Formula: SiO2
Reference: - Baldizzone, G. (2008): I minerali del piacentino – come riconoscerli dove trovarli. Baldizzone G., stampa Tipolito Farnese, Piacenza, 113 pp.
Sphalerite
Formula: ZnS
Reference: Agliuzza F., Esposito M., Odicino G. (2014): Siti d’interesse mineralogico (noti e meno noti) in Alta Val Trebbia. Parte Seconda: Zibaldone di località piacentine. Prie, 10, 11-29.
Talc
Formula: Mg3Si4O10(OH)2
Reference: Agliuzza F., Esposito M., Odicino G. (2014): Siti d’interesse mineralogico (noti e meno noti) in Alta Val Trebbia. Parte Seconda: Zibaldone di località piacentine. Prie, 10, 11-29.

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
'Chalcopyrite'2.CB.10aCuFeS2
'Galena'2.CD.10PbS
'Millerite'2.CC.20NiS
'Pyrite'2.EB.05aFeS2
'Sphalerite'2.CB.05aZnS
Group 4 - Oxides and Hydroxides
'Anatase'4.DD.05TiO2
'Brookite'4.DD.10TiO2
'Jamborite'4.FL.05Ni2+1-xCo3+x(OH)2-x(SO4)x · nH2O
'Quartz'4.DA.05SiO2
Group 5 - Nitrates and Carbonates
'Calcite'5.AB.05CaCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
'Baryte'7.AD.35BaSO4
Group 9 - Silicates
'Talc'9.EC.05Mg3Si4O10(OH)2

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmXp, with m:p = 1:1
Galena2.8.1.1PbS
Millerite2.8.16.1NiS
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
AX2
Anatase4.4.4.1TiO2
Brookite4.4.5.1TiO2
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
X(OH)3
Jamborite6.3.8.1Ni2+1-xCo3+x(OH)2-x(SO4)x · nH2O
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Baryte28.3.1.1BaSO4
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Talc71.2.1.3Mg3Si4O10(OH)2
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2

List of minerals for each chemical element

HHydrogen
H JamboriteNi2+1-xCox3+(OH)2-x(SO4)x · nH2O
H TalcMg3Si4O10(OH)2
CCarbon
C CalciteCaCO3
OOxygen
O AnataseTiO2
O BaryteBaSO4
O BrookiteTiO2
O CalciteCaCO3
O JamboriteNi2+1-xCox3+(OH)2-x(SO4)x · nH2O
O QuartzSiO2
O TalcMg3Si4O10(OH)2
MgMagnesium
Mg TalcMg3Si4O10(OH)2
SiSilicon
Si QuartzSiO2
Si TalcMg3Si4O10(OH)2
SSulfur
S BaryteBaSO4
S ChalcopyriteCuFeS2
S GalenaPbS
S JamboriteNi2+1-xCox3+(OH)2-x(SO4)x · nH2O
S MilleriteNiS
S PyriteFeS2
S SphaleriteZnS
CaCalcium
Ca CalciteCaCO3
TiTitanium
Ti AnataseTiO2
Ti BrookiteTiO2
FeIron
Fe ChalcopyriteCuFeS2
Fe PyriteFeS2
CoCobalt
Co JamboriteNi2+1-xCox3+(OH)2-x(SO4)x · nH2O
NiNickel
Ni JamboriteNi2+1-xCox3+(OH)2-x(SO4)x · nH2O
Ni MilleriteNiS
CuCopper
Cu ChalcopyriteCuFeS2
ZnZinc
Zn SphaleriteZnS
BaBarium
Ba BaryteBaSO4
PbLead
Pb GalenaPbS

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Oligocene - Eocene
23.03 - 56 Ma



ID: 3146780
Eocene sandstone

Age: Paleogene (23.03 - 56 Ma)

Lithology: Major:{sandstone}, Minor{claystone,marlstone,limestone}

Reference: Asch, K. The 1:5M International Geological Map of Europe and Adjacent Areas: Development and Implementation of a GIS-enabled Concept. Geologisches Jahrbuch, SA 3. [147]

Cretaceous
66 - 145 Ma



ID: 3186389
Mesozoic sedimentary rocks

Age: Cretaceous (66 - 145 Ma)

Lithology: Sedimentary rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
- Baldizzone G. (2008): I minerali del piacentino – come riconoscerli dove trovarli. Stampa Tipolito Farnese, Piacenza, 113 pp.
- Agliuzza F., Esposito M., Odicino G. (2014): Siti d’interesse mineralogico (noti e meno noti) in Alta Val Trebbia. Parte Seconda: Zibaldone di località piacentine. Prie, 10, 11-29.


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