Mineral Evolution Database
Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.
Mineral locality data provided by mindat.org



The Mineral Evolution database is currently under development.

The goal of this page is to present localities at which the mineral is found, and estimates of the oldest possible geologic age of the minerals at these localities.


Locality Name:
La Spezia Province, Liguria, Italy

Oldest recorded age at locality: 201
Youngest recorded age at locality: 23

mindat Locality ID: 21862
mindat URL: http://www.mindat.org/loc-21862.html

Tectonic Settings:

Total number of sublocalities beneath "La Spezia Province, Liguria, Italy": 70
Total number of bottom-level sublocalities: 46

Number of Child Localities: 23
Child Localities:
Ameglia
Arcola
Beverino
Bolano
Bonassola
Campiglia
Carro
Carrodano
Casella-Quaratica
Deiva
Framura
La Spezia
Levanto
Ligurian Sea To The SW Of Portovenere Promontory
Maissana
Monterosso
Ortonovo
Porto Venere (Portovenere)
Rocchetta Vara
Santo Stefano Di Magra
Sesta Godano
Vara Valley
Varese Ligure

Latitude: 44°12'45"N
Longitude: 9°39'25"E
Decimal Degree (lat, lon): 44.2125,9.6569444444444
AThis mineral is Anthropogenic.
GThis mineral is directly dated.
BThis mineral is reported as having this age.
YThis mineral is using an age reported as an element mineralization period.
OThis mineral is using an age calculated from all data at the locality.
RThe age displayed for this mineral originates from a different, non-child locality.
PThe age displayed for this mineral is the range of ages for this mineral at all of this locality's children.
This mineral's age has not yet been recorded.

This Mineral list contains entries from this locality, including sub-localities. Minerals in bold are reported by mindat.org as occurring directly at this locality, and do not occur at any children (sublocalities) of this locality.

Elements at this locality, including sub-localities: Al As B Ba C Ca Cd Ce Cl Co Cr Cu F Fe H Hg K La Li Mg Mn Na Ni O P Pb S Sb Si Sr Ti V Y Zn Zr 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AdeliteAllophaneAmorphousAmphiboleAnalcimeAndalusiteApatiteApophylliteAragoniteArdennite
ArseniosideriteArthuriteArtiniteAxiniteBaryteBixbyiteBrackebuschiteBrauniteBrewsteriteBrookite
BruciteCalciteCerchiaraiteChabaziteChalcophylliteChalcopyriteChloriteClayClinozoisiteConnellite
CopperCoronaditeCorundumDescloiziteDiasporeDomeykiteEpidoteFeldsparGadoliniteGarnet
GypsumHarmotomeHeulanditeLindackeriteLévyneMalachiteMarcasiteMedaiteMicaMilarite
MilleriteMixiteNatrochalciteNatroliteNickelineNoneNot in a structural groupOlivineOxalatePectolite
PentlanditePerovskitePharmacosideritePlancheitePrehnitePumpellyitePyritePyroxeneQuartzRhodonite
RocksaltRoseliteRuiziteRutileSaneroiteSerpentineSkutteruditeSmectite-vermiculiteSphaleriteSpinel
StauroliteStilbiteStilpnomelaneSulphurTalcTetrahedriteThomsoniteTitaniteTopazTourmaline
TridymiteVesuvianiteVivianiteVolborthiteWagneriteWurtziteZircon

193 IMA Minerals at location:
Actinolite  (*)Aegirine  (*)Albite  (*)Allophane  (*)Almandine  (*)
Alpeite  (*)Amesite  (*)Analcime  (*)Anatase  (*)Andalusite  (*)
Andradite  (*)Ankerite  (*)Aragonite  (*)Ardennite-(As)  (*)Arseniosiderite  (*)
Artinite  (*)Aurichalcite  (*)Axinite-(Mn)  (*)Azurite  (*)Balestraite  (*)
Bannisterite  (*)Baryte  (*)Bixbyite  (*)Bornite  (*)Brandtite  (*)
Braunite  (*)Brewsterite-Ba  (*)Brookite  (*)Brucite  (*)Brushite  (*)
Cabalzarite  (*)Calcite  (*)Caoxite  (*)Caryopilite  (*)Castellaroite  (*)
Celadonite  (*)Celsian  (*)Cerchiaraite-(Fe)  (*)Cerchiaraite-(Mn)  (*)Cerussite  (*)
Chabazite-Ca  (*)Chalcocite  (*)Chalcophyllite  (*)Chalcopyrite  (*)Chamosite  (*)
Chernovite-(Y)  (*)Chromite  (*)Chrysocolla  (*)Chrysotile  (*)Cinnabar  (*)
Clinochlore  (*)Connellite  (*)Copper  (*)Coralloite  (*)Cornubite  (*)
Cornwallite  (*)Crednerite  (*)Cryptomelane  (*)Cuprite  (*)Datolite  (*)
Demagistrisite  (*)Diaspore  (*)Diopside  (*)Djurleite  (*)Domeykite  (*)
Dravite  (*)Epidote  (*)Erythrite  (*)Ferroceladonite  (*)Fluorapophyllite-(K)  (*)
Gageite  (*)Galena  (*)Gamagarite  (*)Ganophyllite  (*)Geigerite  (*)
Goethite  (*)Graphite  (*)Greenockite  (*)Groutite  (*)Gypsum  (*)
Harmotome  (*)Hausmannite  (*)Hematite  (*)Hemimorphite  (*)Hercynite  (*)
Heulandite-Ca  (*)Hollandite  (*)Huntite  (*)Hydromagnesite  (*)Hydroxyapophyllite-(K)  (*)
Ice  (*)Ilmenite  (*)Inesite  (*)Johannsenite  (*)Kutnohorite  (*)
Langite  (*)Lavendulan  (*)Lavinskyite  (*)Lévyne-Ca  (*)Libethenite  (*)
Lizardite  (*)Macfallite  (*)Magnesio-arfvedsonite  (*)Magnesiochromite  (*)Magnesiovesuvianite  (*)
Magnetite  (*)Malachite  (*)Manganiceladonite  (*)Manganite  (*)Manganohörnesite  (*)
Manganvesuvianite  (*)Marcasite  (*)Medaite  (*)Millerite  (*)Montmorillonite  (*)
Mottramite  (*)Mozartite  (*)Muscovite  (*)Nabiasite  (*)Namansilite  (*)
Nambulite  (*)Natrolite  (*)Neotocite  (*)Nesquehonite  (*)Noelbensonite  (*)
Norrishite  (*)Olivenite  (*)Opal  (*)Orientite  (*)Orthoclase  (*)
Parnauite  (*)Parsettensite  (*)Pectolite  (*)Pentlandite  (*)Pharmacosiderite  (*)
Phlogopite  (*)Piemontite  (*)Piemontite-(Sr)  (*)Potassic-magnesio-arfvedsonite  (*)Prehnite  (*)
Pseudomalachite  (*)Pumpellyite-(Mg)  (*)Pumpellyite-(Mn2+)  (*)Pyrite  (*)Pyrobelonite  (*)
Pyrolusite  (*)Pyromorphite  (*)Pyrope  (*)Pyroxmangite  (*)Pyrrhotite  (*)
Quartz  (*)Rhodochrosite  (*)Rhodonite  (*)Richterite  (*)Ruizite  (*)
Rutile  (*)Saneroite  (*)Saponite  (*)Sarkinite  (*)Scolecite  (*)
Serandite  (*)Siderite  (*)Skutterudite  (*)Smithsonite  (*)Sphalerite  (*)
Spinel  (*)Staurolite  (*)Sterlinghillite  (*)Stetindite-(Ce)  (*)Stilbite-Ca  (*)
Strashimirite  (*)Sugilite  (*)Sulphur  (*)Talc  (*)Tangeite  (*)
Tephroite  (*)Tetrahedrite-(Zn)  (*)Thomsonite-Ca  (*)Tilasite  (*)Tiragalloite  (*)
Titanite  (*)Todorokite  (*)Tokyoite  (*)Topaz  (*)Tremolite  (*)
Vesuvianite  (*)Volborthite  (*)Wakefieldite-(La)  (*)Wallkilldellite  (*)Weddellite  (*)
Zálesíite  (*)Zircon  (*)Zoisite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Actinolite  (*)Amphibole   Ca2(Mg4.5-2.5Fe2+0.5-2.5)Si8O22(OH)21695713419
Aegirine  (*)PyroxeneNaFe3+Si2O620123269595,696081022
Albite  (*)FeldsparNa(AlSi3O8)20123769555,69560,69571,69572,69577,69587,696088803
Allophane  (*)AllophaneAl2O3(SiO2)1.3-2.0·2.5-3.0H2O169595470
Almandine  (*)GarnetFe2+3Al2(SiO4)3201231696082353
Alpeite  (*)ArdenniteCa4Mn3+2Al2(Mn3+Mg)(SiO4)2(Si3O10)(VO4)(OH)61695832
Amesite  (*)Clay SerpentineMg2Al(AlSiO5)(OH)416956674
Analcime  (*)AnalcimeNa(AlSi2O6)·H2O269572,695971627
Anatase  (*)Not in a structural groupTiO2201231069546,69559,69582,69583,69584,69586,69595,69603,69608,696102162
Andalusite  (*)AndalusiteAl2SiO51695791310
Andradite  (*)GarnetCa3Fe3+2(SiO4)320123269595,696081534
Ankerite  (*)NoneCa(Fe2+,Mg)(CO3)2201231696083092
Aragonite  (*)AragoniteCa(CO3)20123769545,69553,69554,69556,69571,69595,696083250
Ardennite-(As)  (*)ArdenniteMn2+4Al4(AlMg)(AsO4)(SiO4)2(Si3O10)(OH)616958334
Arseniosiderite  (*)ArseniosideriteCa2Fe3+3O2(AsO4)3·3H2O169595194
Artinite  (*)ArtiniteMg2(CO3)(OH)2·3H2O269553,6955675
Aurichalcite  (*)None(Zn,Cu)5(CO3)2(OH)6169574919
Axinite-(Mn)  (*)AxiniteCa4Mn2+2Al4[B2Si8O30](OH)216958388
Azurite  (*)Not in a structural groupCu3(CO3)2(OH)2369576,69593,695955509
Balestraite  (*)MicaKLi2V5+Si4O1280801696081
Bannisterite  (*)Stilpnomelane Clay(Ca,K,Na)(Mn2+,Fe2+)10(Si,Al)16O38(OH)8·nH2O16958320
Baryte  (*)BaryteBa(SO4)20123369574,69595,6960811547
Bixbyite  (*)BixbyiteMn3+2O3169568104
Bornite  (*)NoneCu5FeS420123569570,69572,69588,69589,696085516
Brandtite  (*)RoseliteCa2Mn2+(AsO4)2·2H2O16959518
Braunite  (*)BrauniteMn2+Mn3+6O8(SiO4)20123669543,69549,69568,69583,69595,69608483
Brewsterite-Ba  (*)BrewsteriteBa(Al2Si6)O16·5H2O201231696089
Brookite  (*)BrookiteTiO220123569546,69582,69601,69603,69608700
Brucite  (*)BruciteMg(OH)2469545,69553,69554,69556462
Brushite  (*)GypsumCa(PO3OH)·2H2O169595104
Cabalzarite  (*)NatrochalciteCaMg2(AsO4)2·2H2O1695954
Calcite  (*)CalciteCa(CO3)201231769542,69546,69553,69554,69556,69571,69572,69574,69579,69583,69593,69595,69597,69602,69605,69608,6960927770
Caoxite  (*)OxalateCa(C2O4)·3H2O201231696081
Caryopilite  (*)Clay SerpentineMn2+3Si2O5(OH)420123269583,6960883
Castellaroite  (*)Not in a structural groupMn2+3(AsO4)2·4.5H2O1695952
Celadonite  (*)Mica ClayKMgFe3+Si4O10(OH)220123169608309
Celsian  (*)FeldsparBa(Al2Si2O8)169597100
Cerchiaraite-(Fe)  (*)CerchiaraiteBa4Fe3+4(Si4O12)O2(OH)4Cl2[Si2O3(OH)4]80801696086
Cerchiaraite-(Mn)  (*)CerchiaraiteBa4Mn3+4(Si4O12)O2(OH)4Cl2[Si2O3(OH)4]201231696082
Cerussite  (*)AragonitePb(CO3)1695744979
Chabazite-Ca  (*)ChabaziteCa2[Al4Si8O24]·13H2O169577310
Chalcocite  (*)NoneCu2S269583,695955707
Chalcophyllite  (*)ChalcophylliteCu18Al2(AsO4)4(SO4)3(OH)24·36H2O169595194
Chalcopyrite  (*)ChalcopyriteCuFeS2201231469549,69557,69566,69570,69572,69576,69578,69582,69583,69588,69589,69595,69608,6960927198
Chamosite  (*)Chlorite Clay(Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)820123169608577
Chernovite-(Y)  (*)ZirconY(AsO4)16958346
Chromite  (*)SpinelFe2+Cr2O4769553,69561,69562,69565,69566,69599,696053902
Chrysocolla  (*)Allophane(Cu2-xAlx)H2-xSi2O5(OH)4·nH2O20123369582,69595,696083531
Chrysotile  (*)Serpentine ClayMg3Si2O5(OH)420123869545,69553,69565,69566,69589,69595,69597,69608951
Cinnabar  (*)NoneHgS1695832600
Clinochlore  (*)Chlorite ClayMg5Al(AlSi3O10)(OH)820123369553,69572,696081756
Connellite  (*)ConnelliteCu36(SO4)(OH)62Cl8·6H2O169595295
Copper  (*)CopperCu269583,695953846
Coralloite  (*)ArthuriteMn2+Mn3+2(AsO4)2(OH)2·4H2O1695954
Cornubite  (*)NoneCu5(AsO4)2(OH)4169595109
Cornwallite  (*)NoneCu5(AsO4)2(OH)4169595175
Crednerite  (*)NoneCuMnO216959535
Cryptomelane  (*)CoronaditeK(Mn4+7Mn3+)O1620123169608599
Cuprite  (*)Not in a structural groupCu2O469576,69582,69583,695952970
Datolite  (*)GadoliniteCaB(SiO4)(OH)469559,69570,69577,69597498
Demagistrisite  (*)Not in a structural groupBaCa2Mn3+4(Si3O10)(Si2O7)(OH)4·3H2O201231696081
Diaspore  (*)DiasporeAlO(OH)169566481
Diopside  (*)PyroxeneCaMgSi2O6201231169553,69558,69559,69564,69570,69576,69577,69596,69597,69605,696084135
Djurleite  (*)NoneCu31S1620123269595,69608300
Domeykite  (*)DomeykiteCu3As16959573
Dravite  (*)TourmalineNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)20123169608648
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)20123669560,69566,69579,69583,69597,696088173
Erythrite  (*)VivianiteCo3(AsO4)2·8H2O169551814
Ferroceladonite  (*)MicaKFe2+Fe3+Si4O10(OH)22012316960810
Fluorapophyllite-(K)  (*)ApophylliteKCa4Si8O20F·8H2O20123169608303
Gageite  (*)NoneMn2+21Si8O27(OH)2016959514
Galena  (*)RocksaltPbS16957424243
Gamagarite  (*)BrackebuschiteBa2Fe3+(VO4)2(OH)20123269583,6960810
Ganophyllite  (*)Clay(K,Na)xMn2+6(Si,Al)10O24(OH)4·nH2O (x = 1-2; n = 7-11)20123269583,6960845
Geigerite  (*)LindackeriteMn2+5(AsO4)2(AsO3OH)2·10H2O1695957
Goethite  (*)DiasporeFeO(OH)269574,695957437
Graphite  (*)NoneC201231696082812
Greenockite  (*)WurtziteCdS169551717
Groutite  (*)DiasporeMn3+O(OH)2012316960872
Gypsum  (*)GypsumCa(SO4)·2H2O269583,695956890
Harmotome  (*)HarmotomeBa2(Si12Al4)O32·12H2O20123169608290
Hausmannite  (*)SpinelMn2+Mn3+2O420123269595,69608350
Hematite  (*)CorundumFe2O320123969541,69542,69543,69568,69571,69582,69583,69595,6960814640
Hemimorphite  (*)Not in a structural groupZn4(Si2O7)(OH)2·H2O1695741689
Hercynite  (*)SpinelFe2+Al2O4169579407
Heulandite-Ca  (*)Heulandite(Ca,Na,K)5(Si27Al9)O72·26H2O169577246
Hollandite  (*)CoronaditeBa(Mn4+6Mn3+2)O1620123269568,69608243
Huntite  (*)Not in a structural groupCaMg3(CO3)42012316960869
Hydromagnesite  (*)NoneMg5(CO3)4(OH)2·4H2O469553,69554,69556,69558341
Hydroxyapophyllite-(K)  (*)ApophylliteKCa4Si8O20(OH,F)·8H2O2012316960885
Ice  (*)Amorphous TridymiteH2O16959559
Ilmenite  (*)CorundumFe2+Ti4+O3201231696085433
Inesite  (*)NoneCa2Mn2+7Si10O28(OH)2·5H2O16959550
Johannsenite  (*)PyroxeneCaMnSi2O616959573
Kutnohorite  (*)NoneCaMn2+(CO3)2169595234
Langite  (*)NoneCu4(SO4)(OH)6·2H2O169595593
Lavendulan  (*)NoneNaCaCu5(AsO4)4Cl·5H2O169595149
Lavinskyite  (*)PlancheiteK(LiCu)Cu6(Si4O11)2(OH)4201231696082
Lévyne-Ca  (*)LévyneCa3(Si12Al6)O36·18H2O16957742
Libethenite  (*)AndalusiteCu2(PO4)(OH)169595234
Lizardite  (*)Serpentine ClayMg3Si2O5(OH)4369553,69554,69566359
Macfallite  (*)NoneCa2Mn3+3(SiO4)(Si2O7)(OH)3201231696086
Magnesio-arfvedsonite  (*)AmphiboleNaNa2(Mg4Fe3+)Si8O22(OH)22012316960879
Magnesiochromite  (*)SpinelMgCr2O4169566311
Magnesiovesuvianite  (*)VesuvianiteCa19Mg(Al11Mg)Si18O69(OH)9201231696082
Magnetite  (*)SpinelFe2+Fe3+2O420123469553,69566,69571,6960814899
Malachite  (*)MalachiteCu2(CO3)(OH)2201231269549,69568,69570,69574,69576,69582,69583,69589,69590,69593,69595,6960812537
Manganiceladonite  (*)Clay MicaKMgMn3+Si4O10(OH)2201231696081
Manganite  (*)RutileMn3+O(OH)20123469568,69584,69586,69608770
Manganohörnesite  (*)VivianiteMn2+3(AsO4)2·8H2O1695959
Manganvesuvianite  (*)VesuvianiteCa19Mn3+Al10Mg2(SiO4)10(Si2O7)4O(OH)9201231696084
Marcasite  (*)MarcasiteFeS2269542,696045674
Medaite  (*)MedaiteMn2+6V5+Si5O18(OH)1695836
Millerite  (*)MilleriteNiS201231696081066
Montmorillonite  (*)Clay Smectite-vermiculite(Na,Ca)0.3(Al,Mg)2Si4O10(OH)2·nH2O201231696081508
Mottramite  (*)DescloizitePbCu(VO4)(OH)169595362
Mozartite  (*)AdeliteCaMn3+(SiO4)(OH)201231696084
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)220123269579,6960817380
Nabiasite  (*)NoneBaMn9(VO4)6(OH)21695835
Namansilite  (*)NoneNaMn3+Si2O6201231696088
Nambulite  (*)RhodoniteLiMn2+4Si5O14(OH)2012316960812
Natrolite  (*)NatroliteNa2(Si3Al2)O10·2H2O569572,69576,69577,69587,695971236
Neotocite  (*)Allophane(Mn,Fe)SiO3·H2O (?)20123369583,69595,69608186
Nesquehonite  (*)NoneMg(CO3)·3H2O269545,6955480
Noelbensonite  (*)NoneBaMn3+2Si2O7(OH)2·H2O201231696086
Norrishite  (*)MicaKLiMn3+2Si4O10O2201231696085
Olivenite  (*)AndalusiteCu2(AsO4)(OH)169595492
Opal  (*)AmorphousSiO2·nH2O1695952994
Orientite  (*)NoneCa8Mn3+10(SiO4)3(Si3O10)3(OH)10·4H2O201231696088
Orthoclase  (*)FeldsparK(AlSi3O8)201231696082349
Parnauite  (*)NoneCu9(AsO4)2(SO4)(OH)10·7H2O169595105
Parsettensite  (*)Stilpnomelane Clay(K,Na,Ca)7.5(Mn,Mg)49Si72O168(OH)50·nH2O16959543
Pectolite  (*)PectoliteNaCa2Si3O8(OH)20123169608363
Pentlandite  (*)Pentlandite(Ni,Fe)9S820123269566,696081512
Pharmacosiderite  (*)PharmacosideriteKFe3+4(AsO4)3(OH)4·6-7H2O169595428
Phlogopite  (*)Mica ClayKMg3(AlSi3O10)(OH)2201231696082273
Piemontite  (*)EpidoteCa2(Al2Mn3+)[Si2O7][SiO4]O(OH)20123269583,69608260
Piemontite-(Sr)  (*)Clinozoisite EpidoteCaSr(Al2Mn3+)[Si2O7][SiO4]O(OH)2012316960812
Potassic-magnesio-arfvedsonite  (*)AmphiboleKNa2(Mg4Fe3+)Si8O22(OH)22012316960810
Prehnite  (*)PrehniteCa2Al(Si3Al)O10(OH)21069555,69559,69565,69566,69570,69572,69577,69587,69597,696051898
Pseudomalachite  (*)NoneCu5(PO4)2(OH)4169595369
Pumpellyite-(Mg)  (*)PumpellyiteCa2MgAl2(Si2O7)(SiO4)(OH)2·H2O169577106
Pumpellyite-(Mn2+)  (*)PumpellyiteCa2Mn2+Al2(Si2O7)(SiO4)(OH)2·H2O16958315
Pyrite  (*)PyriteFeS2201231269568,69570,69571,69572,69574,69575,69577,69582,69583,69601,69602,6960839462
Pyrobelonite  (*)DescloizitePbMn2+VO4(OH)2012316960821
Pyrolusite  (*)RutileMnO220123669543,69549,69568,69584,69595,696083106
Pyromorphite  (*)ApatitePb5(PO4)3Cl1695951725
Pyrope  (*)GarnetMg3Al2(SiO4)320123169608341
Pyroxmangite  (*)NoneMn2+SiO320123269583,69608147
Pyrrhotite  (*)NickelineFe7S8469553,69556,69576,695779056
Quartz  (*)QuartzSiO2201231669542,69546,69568,69571,69579,69582,69583,69584,69586,69589,69595,69596,69601,69602,69605,6960861156
Rhodochrosite  (*)CalciteMn(CO3)20123369583,69595,696081711
Rhodonite  (*)RhodoniteCaMn3Mn(Si5O15)20123369583,69595,69608969
Richterite  (*)AmphiboleNa(NaCa)Mg5Si8O22(OH)220123169608148
Ruizite  (*)RuiziteCa2Mn3+2Si4O11(OH)4·2H2O201231696086
Rutile  (*)RutileTiO220123269579,696085614
Saneroite  (*)SaneroiteNaMn2+5[Si5O14(OH)](VO3)(OH)1695836
Saponite  (*)Clay Smectite-vermiculite(Ca,Na)0.3(Mg,Fe)3(Si,Al)4O10(OH)2·4H2O20123169608301
Sarkinite  (*)WagneriteMn2+2(AsO4)(OH)369583,69595,6960930
Scolecite  (*)NatroliteCa(Si3Al2)O10·3H2O269576,69577390
Serandite  (*)PectoliteNaMn2+2Si3O8(OH)2012316960838
Siderite  (*)CalciteFe(CO3)20123369541,69543,696086417
Skutterudite  (*)Skutterudite PerovskiteCoAs3169582531
Smithsonite  (*)CalciteZn(CO3)1695742473
Sphalerite  (*)SphaleriteZnS269574,6957721482
Spinel  (*)SpinelMgAl2O41695711934
Staurolite  (*)StauroliteFe2+2Al9Si4O23(OH)169579978
Sterlinghillite  (*)NoneMn2+3(AsO4)2·3H2O1695953
Stetindite-(Ce)  (*)ZirconCe(SiO4)201231696083
Stilbite-Ca  (*)StilbiteNaCa4(Si27Al9)O72·28H2O169577268
Strashimirite  (*)NoneCu4(AsO4)2(OH)2·2.5H2O16959590
Sugilite  (*)MilariteKNa2Fe3+2(Li3Si12)O302012316960815
Sulphur  (*)SulphurS1695742045
Talc  (*)Clay TalcMg3Si4O10(OH)220123769571,69572,69582,69595,69597,69608,696093337
Tangeite  (*)AdeliteCaCu(VO4)(OH)2012316960860
Tephroite  (*)OlivineMn2+2(SiO4)20123169608240
Tetrahedrite-(Zn)  (*)TetrahedriteCu6(Cu4Zn2)Sb4S131695935317
Thomsonite-Ca  (*)ThomsoniteNaCa2(Al5Si5)O20·6H2O269577,69597452
Tilasite  (*)TitaniteCaMg(AsO4)F16959534
Tiragalloite  (*)NoneMn2+4As5+Si3O12(OH)20123269583,6960815
Titanite  (*)TitaniteCaTi(SiO4)O20123569553,69571,69579,69583,696084899
Todorokite  (*)None(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12·3-4H2O20123169608433
Tokyoite  (*)BrackebuschiteBa2Mn3+(VO4)2OH201231696089
Topaz  (*)TopazAl2SiO4F21695791476
Tremolite  (*)Amphibole   Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)2269571,695722562
Vesuvianite  (*)Vesuvianite(Ca,Na)19(Al,Mg,Fe)13(SiO4)10(Si2O7)4(OH,F,O)10369553,69572,695971395
Volborthite  (*)VolborthiteCu3V2O7(OH)2·2H2O269582,69595155
Wakefieldite-(La)  (*)ZirconLaVO4201231696083
Wallkilldellite  (*)NoneCa2Mn2+3(AsO4)2(OH)4·9H2O16959520
Weddellite  (*)OxalateCa(C2O4)·2H2O2012316960832
Zálesíite  (*)MixiteCaCu6(AsO4)2(AsO3OH)(OH)6·3H2O16959584
Zircon  (*)ZirconZr(SiO4)1695795251
Zoisite  (*)EpidoteCa2Al3[Si2O7][SiO4]O(OH)269570,695711025


Locality Notes from all Ages at Locality:
Age IDLocality Notes
Michelle_0036Veins cutting Mn-Ba vein rich cherts
Michelle_545Cerchiaraite-(Fe) occurs in small fractures and veinlets within the metacherts of a Jurassic ophiolitic sequence.


5 Ages assigned to this locality:

Excel IDMax Age (Ma)Min Age (Ma)Age as listed in referenceDating MethodAge InterpretPrioritized?Sample SourceSample NumRun NumAge from other LocalityDated MineralMinerals explicitely stated as having this ageAge applies to these ElementsMinDat Locality IDDated Locality (Max Age)Location as listed in referenceReferenceReference DOIReference IDAge Notes
Alexandra-0110201145Jurassic Age of rocks     Mn4430Cerchiara Mine, Borghetto Vara, Vara Valley, La Spezia Province, Liguria, ItalyCerchiara MineBindi et al. (2013)10.1180/minmag.2013.077.4.07MM77_475 
Alexandra-011110023Late Cretaceous - Early Cenozoic Age of metamorphism     Mn4430Cerchiara Mine, Borghetto Vara, Vara Valley, La Spezia Province, Liguria, ItalyCerchiara MineBindi et al. (2013)10.1180/minmag.2013.077.4.07MM77_475 
Grew_Li_2019_0003808080      Balestraite 4430Cerchiara Mine, Borghetto Vara, Vara Valley, La Spezia Province, Liguria, ItalyCerchiara mine, Eastern Liguria, ItalyCabella et al. (1998) TM2_1 
Michelle_003610023Late Cretaceous - Early CenozoicstratigraphyAge of vein mineralization/metamorphism      4430Cerchiara Mine, Borghetto Vara, Vara Valley, La Spezia Province, Liguria, ItalyCerchiara MineBasso et al. (1997) NJM2_84 
Michelle_545808080 Age of tectonometamorphic overprinting    Cerchiaraite-(Fe) 4430Cerchiara Mine, Borghetto Vara, Vara Valley, La Spezia Province, Liguria, ItalyCerchiara MineKampf et al. (2013) MM77_69Age of secondary hydrothermal event, related to re-equilibration of the ophiolitic sequences during tectonometamorphic overprinting

SampleSource LocalityReference URL
R060936Cerchiara Mine, Borghetto Vara, Vara Valley, La Spezia Province, Liguria, Italyhttps://rruff.info/R060936

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