Vote for your favorite mineral in #MinCup26! - Cuprite vs. Orpiment
It's a fiery match of vibrant red Cuprite and just as saturated orange Orpiment battle for your votes!
Log InRegister
Quick Links : The Mindat ManualThe Rock H. Currier Digital LibraryMindat Newsletter [Free Download]
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsThe Rock H. Currier Digital LibraryGeologic TimeExplore Fossils
Minerals by PropertiesMinerals by ChemistryMineral Visual ExplorerAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsClubs & OrganizationsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral QuizTime Machine
Photo SearchPhoto GalleriesSearch by ColorPhoto Colour ExplorerNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Piazza Mine, Deiva Marina, La Spezia Province, Liguria, Italyi
Regional Level Types
Piazza MineMine
Deiva MarinaCommune
La Spezia ProvinceProvince
LiguriaAdministrative Region
ItalyCountry

This page is currently not sponsored. Click here to sponsor this page.
PhotosMapsSearch
Latitude & Longitude (WGS84):
44° 14' 16'' North , 9° 33' 31'' East
Latitude & Longitude (decimal):
Type:
Nearest Settlements:
PlacePopulationDistance
Piazza167 (2014)0.4km
Castagnola135 (2014)1.7km
Mezzema109 (2014)1.7km
Ca' Mirò226 (2017)1.9km
Costa116 (2014)3.0km
Mindat Locality ID:
63335
Long-form identifier:
mindat:1:2:63335:1
GUID (UUID V4):
0
Other Languages:
Italian:
Miniera di Piazza, Deiva Marina, Provincia della Spezia, Liguria, Italia


Old Cu mine exploited for Cu- and Ag-rich mineralization from late 15th century until the beginning of 20th century.

The Piazza deposit is hosted along a fracture network developed in pegmatoidal gabbro and, to a lesser extent, along the contacts with some dolerite dikes crosscutting the gabbro, within the ophiolite complex of the Bracco Unit (Internal Ligurides).


Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


23 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 Diagram

Detailed Mineral List:

Actinolite
Formula: ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Albite
Formula: Na(AlSi3O8)
Altaite
Formula: PbTe
'Amphibole Supergroup'
Formula: AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Bornite
Formula: Cu5FeS4
Chalcopyrite
Formula: CuFeS2
'Chlorite Group'
Clausthalite
Formula: PbSe
Covellite
Formula: CuS
Datolite
Formula: CaB(SiO4)(OH)
'Diallage'
Diopside
Formula: CaMgSi2O6
Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Greenockite
Formula: CdS
Hessite
Formula: Ag2Te
'Hornblende Root Name Group'
Formula: ◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2
Malachite
Formula: Cu2(CO3)(OH)2
Millerite
Formula: NiS
Native Tellurium
Formula: Te
Naumannite
Formula: Ag2Se
Prehnite
Formula: Ca2Al2Si3O10(OH)2
Pyrite
Formula: FeS2
Quartz
Formula: SiO2
Siegenite
Formula: CoNi2S4
Sphalerite
Formula: ZnS
Tremolite
Formula: ◻Ca2Mg5(Si8O22)(OH)2
Zoisite
Formula: (CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Zoisite var. Thulite
Formula: {Ca2}{Al,Mn3+3}(Si2O7)(SiO4)O(OH)

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Native Tellurium1.CC.10Te
Group 2 - Sulphides and Sulfosalts
Bornite2.BA.15Cu5FeS4
Naumannite2.BA.55Ag2Se
Hessite2.BA.60Ag2Te
Covellite2.CA.05aCuS
Sphalerite2.CB.05aZnS
Chalcopyrite2.CB.10aCuFeS2
Greenockite2.CB.45CdS
Millerite2.CC.20NiS
Altaite2.CD.10PbTe
Clausthalite2.CD.10PbSe
Siegenite2.DA.05CoNi2S4
Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Malachite5.BA.10Cu2(CO3)(OH)2
Group 9 - Silicates
Datolite9.AJ.20CaB(SiO4)(OH)
Epidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Zoisite
var. Thulite
9.BG.10{Ca2}{Al,Mn3+3}(Si2O7)(SiO4)O(OH)
9.BG.10(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Diopside9.DA.15CaMgSi2O6
Actinolite9.DE.10◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Tremolite9.DE.10◻Ca2Mg5(Si8O22)(OH)2
Prehnite9.DP.20Ca2Al2Si3O10(OH)2
Albite9.FA.35Na(AlSi3O8)
Unclassified
'Amphibole Supergroup'-AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
'Chlorite Group'-
'Diallage'-
'Hornblende Root Name Group'-◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2

List of minerals for each chemical element

HHydrogen
H Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
H Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
H DatoliteCaB(SiO4)(OH)
H Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
H MalachiteCu2(CO3)(OH)2
H PrehniteCa2Al2Si3O10(OH)2
H Zoisite var. Thulite{Ca2}{Al,Mn33+}(Si2O7)(SiO4)O(OH)
H Tremolite◻Ca2Mg5(Si8O22)(OH)2
H Zoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
H Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
BBoron
B DatoliteCaB(SiO4)(OH)
CCarbon
C MalachiteCu2(CO3)(OH)2
OOxygen
O Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
O AlbiteNa(AlSi3O8)
O Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
O DiopsideCaMgSi2O6
O DatoliteCaB(SiO4)(OH)
O Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
O MalachiteCu2(CO3)(OH)2
O PrehniteCa2Al2Si3O10(OH)2
O QuartzSiO2
O Zoisite var. Thulite{Ca2}{Al,Mn33+}(Si2O7)(SiO4)O(OH)
O Tremolite◻Ca2Mg5(Si8O22)(OH)2
O Zoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
O Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
FFluorine
F Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
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 DiopsideCaMgSi2O6
Mg Tremolite◻Ca2Mg5(Si8O22)(OH)2
AlAluminium
Al AlbiteNa(AlSi3O8)
Al Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Al Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Al PrehniteCa2Al2Si3O10(OH)2
Al Zoisite var. Thulite{Ca2}{Al,Mn33+}(Si2O7)(SiO4)O(OH)
Al Zoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Al Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
SiSilicon
Si Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Si AlbiteNa(AlSi3O8)
Si Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Si DiopsideCaMgSi2O6
Si DatoliteCaB(SiO4)(OH)
Si Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Si PrehniteCa2Al2Si3O10(OH)2
Si QuartzSiO2
Si Zoisite var. Thulite{Ca2}{Al,Mn33+}(Si2O7)(SiO4)O(OH)
Si Tremolite◻Ca2Mg5(Si8O22)(OH)2
Si Zoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Si Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
SSulfur
S BorniteCu5FeS4
S ChalcopyriteCuFeS2
S CovelliteCuS
S GreenockiteCdS
S MilleriteNiS
S PyriteFeS2
S SiegeniteCoNi2S4
S SphaleriteZnS
ClChlorine
Cl Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Cl Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
CaCalcium
Ca Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Ca DiopsideCaMgSi2O6
Ca DatoliteCaB(SiO4)(OH)
Ca Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Ca PrehniteCa2Al2Si3O10(OH)2
Ca Zoisite var. Thulite{Ca2}{Al,Mn33+}(Si2O7)(SiO4)O(OH)
Ca Tremolite◻Ca2Mg5(Si8O22)(OH)2
Ca Zoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Ca Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
TiTitanium
Ti Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
MnManganese
Mn Zoisite var. Thulite{Ca2}{Al,Mn33+}(Si2O7)(SiO4)O(OH)
FeIron
Fe Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Fe BorniteCu5FeS4
Fe ChalcopyriteCuFeS2
Fe Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Fe PyriteFeS2
CoCobalt
Co SiegeniteCoNi2S4
NiNickel
Ni MilleriteNiS
Ni SiegeniteCoNi2S4
CuCopper
Cu BorniteCu5FeS4
Cu ChalcopyriteCuFeS2
Cu CovelliteCuS
Cu MalachiteCu2(CO3)(OH)2
ZnZinc
Zn SphaleriteZnS
SeSelenium
Se ClausthalitePbSe
Se NaumanniteAg2Se
AgSilver
Ag HessiteAg2Te
Ag NaumanniteAg2Se
CdCadmium
Cd GreenockiteCdS
TeTellurium
Te AltaitePbTe
Te HessiteAg2Te
Te Native TelluriumTe
PbLead
Pb AltaitePbTe
Pb ClausthalitePbSe

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

 
and/or  
Mindat.org® is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Mindat® and mindat.org® are registered trademarks of the Hudson Institute of Mineralogy.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2026, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph and Ida Chau.
Content on this site may not be used to train, fine-tune, or otherwise develop artificial intelligence or machine learning models without prior written permission - see our Terms & Conditions.
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.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: September 5, 2026 01:05:11 Page updated: August 23, 2025 21:23:11
Go to top of page