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Groppaggi, Bargone, Casarza Ligure, Genoa, Liguria, Italyi
Regional Level Types
GroppaggiOutcrop
BargoneGroup of Outcrops
Casarza LigureCommune
GenoaMetropolitan City
LiguriaRegion
ItalyCountry

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PhotosMapsSearch
06900280017272086827183.jpg
Pillow lava

Groppaggi, Bargone, Casarza Ligure, Genoa, Liguria, Italy
03453870017272086833707.jpg
Pillow lava

Groppaggi, Bargone, Casarza Ligure, Genoa, Liguria, Italy
09583140017272086837455.jpg
The pillow lava outcrop

Groppaggi, Bargone, Casarza Ligure, Genoa, Liguria, Italy
06900280017272086827183.jpg
Pillow lava

Groppaggi, Bargone, Casarza Ligure, Genoa, Liguria, Italy
03453870017272086833707.jpg
Pillow lava

Groppaggi, Bargone, Casarza Ligure, Genoa, Liguria, Italy
09583140017272086837455.jpg
The pillow lava outcrop

Groppaggi, Bargone, Casarza Ligure, Genoa, Liguria, Italy
04097590017272086843758.jpg
Pillow lava

Groppaggi, Bargone, Casarza Ligure, Genoa, Liguria, Italy
03453870017272086833707.jpg
Pillow lava

Groppaggi, Bargone, Casarza Ligure, Genoa, Liguria, Italy
Latitude & Longitude (WGS84):
44° North , 9° East (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~1km
GRN:
N30E05
Type:
Outcrop
Köppen climate type:
Csb : Warm-summer Mediterranean climate
Mindat Locality ID:
62754
Long-form identifier:
mindat:1:2:62754:5
GUID (UUID V4):
0
Name(s) in local language(s):
Groppaggi, Bargone, Casarza Ligure, Provincia di Genova, Liguria, Italia


Locality situated a few hundred metres from the diabase outcrop of Costa di Bargone [see http://www.mindat.org/loc-268631.html].

A spectacular outcrop of pillow lavas, which pertains to the overturned flank of an anticline (the Mt. Porcile anticline), is visible along the road. The pillows are aphyric and show a typical texture variation from core to rim (intersertal, spherulitic, variolitic, and glassy). Some pillows contain flying saucer-like cavities (about 2-5 cm thick), often filled with carbonates, quartz or silicates. The sedimentary origin of some of these carbonates has been determined due to the presence of calcareous nannofossils (Abbate et al., 1986).

A mass of porphyric diabase associated with gabbroic rocks is exposed in the proximity of the pillow lava outcrop. The mass is cut by various systems of fractures, cemented by segregation minerals. Typical mineral assemblages include albite, pumpellyite, prehnite, chlorite, sericite, and subordinate actinolite. Calcite, quartz, prehnite, and epidote are abundant in the larger veins. Furthermore, veinlets of fine-grained diabase (containing albite, chlorite, pumpellyite, epidote, and titanite) crosscut the porphyric diabase.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


9 valid minerals.

Detailed Mineral List:

ⓘ Actinolite
Formula: ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
ⓘ Albite
Formula: Na(AlSi3O8)
ⓘ Calcite
Formula: CaCO3
ⓘ 'Chlorite Group'
ⓘ Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘ Hercynite
Formula: Fe2+Al2O4
ⓘ Hercynite var. Picotite
Formula: (Fe,Mg)(Al,Cr)2O4
ⓘ 'Hornblende Root Name Group'
Formula: ◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2
ⓘ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Muscovite var. Sericite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Prehnite
Formula: Ca2Al2Si3O10(OH)2
ⓘ 'Pumpellyite Subgroup'
Formula: Ca2XAl2[Si2O6(OH)][SiO4](OH)2A
ⓘ 'Pyroxene Group'
Formula: ADSi2O6
ⓘ Quartz
Formula: SiO2
ⓘ Titanite
Formula: CaTi(SiO4)O

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘHercynite4.BB.05Fe2+Al2O4
ⓘvar. Picotite4.BB.05(Fe,Mg)(Al,Cr)2O4
ⓘQuartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
Group 9 - Silicates
ⓘTitanite9.AG.15CaTi(SiO4)O
ⓘEpidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘActinolite9.DE.10◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
ⓘPrehnite9.DP.20Ca2Al2Si3O10(OH)2
ⓘMuscovite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘvar. Sericite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘAlbite9.FA.35Na(AlSi3O8)
Unclassified
ⓘ'Chlorite Group'-
ⓘ'Pumpellyite Subgroup'-Ca2XAl2[Si2O6(OH)][SiO4](OH)2A
ⓘ'Hornblende Root Name Group'-◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2
ⓘ'Pyroxene Group'-ADSi2O6

List of minerals for each chemical element

HHydrogen
Hⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Hⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Hⓘ PrehniteCa2Al2Si3O10(OH)2
Hⓘ Pumpellyite SubgroupCa2XAl2[Si2O6(OH)][SiO4](OH)2A
Hⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Hⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
CCarbon
Cⓘ CalciteCaCO3
OOxygen
Oⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Oⓘ AlbiteNa(AlSi3O8)
Oⓘ CalciteCaCO3
Oⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Oⓘ HercyniteFe2+Al2O4
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Oⓘ PrehniteCa2Al2Si3O10(OH)2
Oⓘ Pumpellyite SubgroupCa2XAl2[Si2O6(OH)][SiO4](OH)2A
Oⓘ QuartzSiO2
Oⓘ TitaniteCaTi(SiO4)O
Oⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Oⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Oⓘ Pyroxene GroupADSi2O6
Oⓘ Hercynite var. Picotite(Fe,Mg)(Al,Cr)2O4
FFluorine
Fⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
NaSodium
Naⓘ AlbiteNa(AlSi3O8)
MgMagnesium
Mgⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Mgⓘ Hercynite var. Picotite(Fe,Mg)(Al,Cr)2O4
AlAluminium
Alⓘ AlbiteNa(AlSi3O8)
Alⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Alⓘ HercyniteFe2+Al2O4
Alⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Alⓘ PrehniteCa2Al2Si3O10(OH)2
Alⓘ Pumpellyite SubgroupCa2XAl2[Si2O6(OH)][SiO4](OH)2A
Alⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Alⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Alⓘ Hercynite var. Picotite(Fe,Mg)(Al,Cr)2O4
SiSilicon
Siⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Siⓘ AlbiteNa(AlSi3O8)
Siⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Siⓘ PrehniteCa2Al2Si3O10(OH)2
Siⓘ Pumpellyite SubgroupCa2XAl2[Si2O6(OH)][SiO4](OH)2A
Siⓘ QuartzSiO2
Siⓘ TitaniteCaTi(SiO4)O
Siⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Siⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Siⓘ Pyroxene GroupADSi2O6
ClChlorine
Clⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
KPotassium
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Kⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
CaCalcium
Caⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Caⓘ CalciteCaCO3
Caⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Caⓘ PrehniteCa2Al2Si3O10(OH)2
Caⓘ Pumpellyite SubgroupCa2XAl2[Si2O6(OH)][SiO4](OH)2A
Caⓘ TitaniteCaTi(SiO4)O
Caⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
TiTitanium
Tiⓘ TitaniteCaTi(SiO4)O
CrChromium
Crⓘ Hercynite var. Picotite(Fe,Mg)(Al,Cr)2O4
FeIron
Feⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Feⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Feⓘ HercyniteFe2+Al2O4
Feⓘ Hercynite var. Picotite(Fe,Mg)(Al,Cr)2O4

Other Regions, Features and Areas containing this locality

Eurasian PlateTectonic Plate
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

Galli, M. and Cortesogno, L. (1970) Studi petrografici sulle formazioni ofiolitiche dell'Appennino ligure. Nota XIII - Fenomeni di metamorfismo di basso grado in alcune rocce della formazione ofiolitica dell'Appennino ligure. Rendiconti della Societa Italiana di Mineralogia e Petrologia, 26, 599-647.
Antofilli, Mario, Borgo, Emilio, Palenzona, Andrea (1985) I nostri minerali : geologia e mineralogia in Liguria (2nd ed.). Edizioni Melita.
Abbate, E., Bortolotti, V., Conti, M., Marcucci, M., Principi, G., Passerini, P., and Treves, B. (1986) Apennine and Alps ophiolites and the evolution of the western Tethys. Memorie della Società Geologica Italiana, 31, 23-44.
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