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Gava Valley, Voltri, Genoa, Genoa, Liguria, Italyi
Regional Level Types
Gava ValleyValley
Voltri- not defined -
GenoaCommune
GenoaMetropolitan City
LiguriaRegion
ItalyCountry

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Latitude & Longitude (WGS84):
44° 26' 33'' North , 8° 40' 59'' East
Latitude & Longitude (decimal):
44.44254,8.68312
GRN:
N30E05
Type:
Valley
Köppen climate type:
Csb : Warm-summer Mediterranean climate
Mindat Locality ID:
2109
Long-form identifier:
mindat:1:2:2109:1
GUID (UUID V4):
0
Name(s) in local language(s):
Valle della Gava, Voltri, Genova, Provincia di Genova, Liguria, Italia


Rodingite bodies in serpentinites of Beigua unit, an ophiolitic slice of the Voltri Massif, crop out in this area and contain typical minerals such as garnet (grossular), vesuvianite, titanite, chlorite, diopside, etc. Mineralised blocks are found in debris and screes along the valley.

The mineral area, located on the left side of the valley in debris and screes between Case Stellin and Passo della Gava, can be reached by car from Voltri, following the road to Fabbriche and then to Sambuco; from Sambuco follow the path towards Passo della Gava.

The name "gavite" was given by Repossi (1918) to a variety of talc, which forms milky to yellowish and greenish coatings and incrustations on garnet, chlorite, and titanite crystals.
Access is by car from Voltri in Fabbriche and then to Sambuco; from Sambuco with path to the Passo della Gava.
Debris and screes.

Select Mineral List Type

StandardDetailedGalleryStrunzChemical Elements

Detailed Mineral List:

ⓘAlbite
Formula:Na(AlSi3O8)
ⓘ'Apatite'
Formula:Ca5(PO4)3(Cl/F/OH)
ⓘ'Asbestos'
ⓘCalcite
Formula:CaCO3
ⓘ'Chlorite Group'
ⓘClinochlore
Formula:Mg5Al(AlSi3O10)(OH)8
ⓘClinohumite
Formula:Mg9(SiO4)4F2
ⓘDiopside
Formula:CaMgSi2O6
ⓘEpidote
Formula:(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘ'Garnet Group'
Formula:X3Z2(SiO4)3
ⓘGrossular
Formula:Ca3Al2(SiO4)3
ⓘGrossular var. Hessonite
Formula:Ca3Al2(SiO4)3
ⓘ'Hornblende Root Name Group'
Formula:◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2
ⓘHydroxylclinohumite var. Titanclinohumite
Formula:(Mg,Ti)9(SiO4)4(OH,F)2
ⓘIlmenite
Formula:Fe2+TiO3
ⓘIlvaite
Formula:CaFe3+Fe2+2(Si2O7)O(OH)
ⓘ'Limonite'
ⓘMagnetite
Formula:Fe2+Fe3+2O4
ⓘPyrite
Formula:FeS2
ⓘTalc var. Gavite
Formula:Mg4Si5O12(OH)4 ?
ⓘTitanite
Formula:CaTi(SiO4)O
ⓘVesuvianite
Formula:Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9

Gallery:

CaMgSi2O6ⓘDiopside
X3Z2(SiO4)3ⓘ'Garnet Group'
Ca3Al2(SiO4)3ⓘGrossular
Ca3Al2(SiO4)3ⓘGrossular var. Hessonite
Mg4Si5O12(OH)4 ?ⓘTalc var. Gavite
CaTi(SiO4)OⓘTitanite

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘPyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘIlmenite4.CB.05Fe2+TiO3
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
Group 9 - Silicates
ⓘGrossular9.AD.25Ca3Al2(SiO4)3
ⓘvar. Hessonite9.AD.25Ca3Al2(SiO4)3
ⓘClinohumite9.AF.55Mg9(SiO4)4F2
ⓘHydroxylclinohumite
var. Titanclinohumite		9.AF.55(Mg,Ti)9(SiO4)4(OH,F)2
ⓘTitanite9.AG.15CaTi(SiO4)O
ⓘIlvaite9.BE.07CaFe3+Fe2+2(Si2O7)O(OH)
ⓘEpidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘVesuvianite9.BG.35Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
ⓘDiopside9.DA.15CaMgSi2O6
ⓘTalc
var. Gavite		9.EC.05Mg4Si5O12(OH)4 ?
ⓘClinochlore9.EC.55Mg5Al(AlSi3O10)(OH)8
ⓘAlbite9.FA.35Na(AlSi3O8)
Unclassified
ⓘ'Asbestos'-
ⓘ'Chlorite Group'-
ⓘ'Limonite'-
ⓘ'Hornblende Root Name Group'-◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2
ⓘ'Garnet Group'-X3Z2(SiO4)3
ⓘ'Apatite'-Ca5(PO4)3(Cl/F/OH)

List of minerals for each chemical element

HHydrogen
HⓘClinochloreMg5Al(AlSi3O10)(OH)8
HⓘEpidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
HⓘIlvaiteCaFe3+Fe22+(Si2O7)O(OH)
HⓘVesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
HⓘHydroxylclinohumite var.Titanclinohumite(Mg,Ti)9(SiO4)4(OH,F)2
HⓘHornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
HⓘTalc var.GaviteMg4Si5O12(OH)4 ?
HⓘApatiteCa5(PO4)3(Cl/F/OH)
CCarbon
CⓘCalciteCaCO3
OOxygen
OⓘAlbiteNa(AlSi3O8)
OⓘCalciteCaCO3
OⓘClinochloreMg5Al(AlSi3O10)(OH)8
OⓘClinohumiteMg9(SiO4)4F2
OⓘDiopsideCaMgSi2O6
OⓘEpidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
OⓘGrossularCa3Al2(SiO4)3
OⓘGrossular var.HessoniteCa3Al2(SiO4)3
OⓘIlmeniteFe2+TiO3
OⓘIlvaiteCaFe3+Fe22+(Si2O7)O(OH)
OⓘMagnetiteFe2+Fe23+O4
OⓘTitaniteCaTi(SiO4)O
OⓘVesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
OⓘHydroxylclinohumite var.Titanclinohumite(Mg,Ti)9(SiO4)4(OH,F)2
OⓘHornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
OⓘTalc var.GaviteMg4Si5O12(OH)4 ?
OⓘGarnet GroupX3Z2(SiO4)3
OⓘApatiteCa5(PO4)3(Cl/F/OH)
FFluorine
FⓘClinohumiteMg9(SiO4)4F2
FⓘHydroxylclinohumite var.Titanclinohumite(Mg,Ti)9(SiO4)4(OH,F)2
FⓘHornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
FⓘApatiteCa5(PO4)3(Cl/F/OH)
NaSodium
NaⓘAlbiteNa(AlSi3O8)
MgMagnesium
MgⓘClinochloreMg5Al(AlSi3O10)(OH)8
MgⓘClinohumiteMg9(SiO4)4F2
MgⓘDiopsideCaMgSi2O6
MgⓘVesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
MgⓘHydroxylclinohumite var.Titanclinohumite(Mg,Ti)9(SiO4)4(OH,F)2
MgⓘTalc var.GaviteMg4Si5O12(OH)4 ?
AlAluminium
AlⓘAlbiteNa(AlSi3O8)
AlⓘClinochloreMg5Al(AlSi3O10)(OH)8
AlⓘEpidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
AlⓘGrossularCa3Al2(SiO4)3
AlⓘGrossular var.HessoniteCa3Al2(SiO4)3
AlⓘVesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
AlⓘHornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
SiSilicon
SiⓘAlbiteNa(AlSi3O8)
SiⓘClinochloreMg5Al(AlSi3O10)(OH)8
SiⓘClinohumiteMg9(SiO4)4F2
SiⓘDiopsideCaMgSi2O6
SiⓘEpidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
SiⓘGrossularCa3Al2(SiO4)3
SiⓘGrossular var.HessoniteCa3Al2(SiO4)3
SiⓘIlvaiteCaFe3+Fe22+(Si2O7)O(OH)
SiⓘTitaniteCaTi(SiO4)O
SiⓘVesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
SiⓘHydroxylclinohumite var.Titanclinohumite(Mg,Ti)9(SiO4)4(OH,F)2
SiⓘHornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
SiⓘTalc var.GaviteMg4Si5O12(OH)4 ?
SiⓘGarnet GroupX3Z2(SiO4)3
PPhosphorus
PⓘApatiteCa5(PO4)3(Cl/F/OH)
SSulfur
SⓘPyriteFeS2
ClChlorine
ClⓘHornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
ClⓘApatiteCa5(PO4)3(Cl/F/OH)
CaCalcium
CaⓘCalciteCaCO3
CaⓘDiopsideCaMgSi2O6
CaⓘEpidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
CaⓘGrossularCa3Al2(SiO4)3
CaⓘGrossular var.HessoniteCa3Al2(SiO4)3
CaⓘIlvaiteCaFe3+Fe22+(Si2O7)O(OH)
CaⓘTitaniteCaTi(SiO4)O
CaⓘVesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9
CaⓘHornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
CaⓘApatiteCa5(PO4)3(Cl/F/OH)
TiTitanium
TiⓘIlmeniteFe2+TiO3
TiⓘTitaniteCaTi(SiO4)O
TiⓘHydroxylclinohumite var.Titanclinohumite(Mg,Ti)9(SiO4)4(OH,F)2
FeIron
FeⓘEpidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
FeⓘIlmeniteFe2+TiO3
FeⓘIlvaiteCaFe3+Fe22+(Si2O7)O(OH)
FeⓘMagnetiteFe2+Fe23+O4
FeⓘPyriteFeS2
FeⓘVesuvianiteCa19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9

Other Regions, Features and Areas containing this locality

Eurasian PlateTectonic Plate
EuropeContinent
Italy

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References

Repossi, E. (1918): I minerali della Valle della Gava nel "Gruppo di Voltri". Una nuova varietà di talco. Atti della Società Italiana di Scienze Naturali e del Museo Civico di Storia Naturale in Milano, 57, 131-155
Wherry, E.T. (1919): New minerals. Gavite. American Mineralogist, 4, 10, 132
Rondolino, R. (1936): Ricerche chimiche sulla gavite di val della Gava (gruppo di Voltri). Periodico di Mineralogia, 7, 207-210
Dal Piaz, G.V. (1967) Le "granatiti" (rodingiti l.s.) nelle serpentine delle Alpi occidentali italiane. Memorie della Società Geologica Italiana, 6, 267-313
Del Caldo, A.; Moro, C.; Gramaccioli, C.M.; Boscardin, M. (1973)Guida ai minerali. Fratelli Fabbri Editori. 208 pp.
De Michele, V. (1974)Guida mineralogica d'Italia Vol. 1. Istituto Geografico De Agostini.pp.84-88
Pipino, G. (1981) Granatiti e rodingiti. Rivista Mineralogica Italiana, 5(4) (4-1981), 103-116.
Pipino G. (1981): Granatiti e rodingiti. Rivista Mineralogica Italiana, 4, 5, 103-116
Antofilli, Mario, Borgo, Emilio, Palenzona, Andrea (1985)I nostri minerali : geologia e mineralogia in Liguria (2nd ed.). Edizioni Melita.
Borgo, E., Palenzona, A. (1988): I nostri minerali. Geologia e mineralogia in Liguria. Aggiornamento 1988. SAGEP Editrice, Genova, 48 pp.
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