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Morasco area, Formazza, Verbano-Cusio-Ossola Province, Piedmont, Italyi
Regional Level Types
Morasco areaArea
FormazzaCommune
Verbano-Cusio-Ossola ProvinceProvince
PiedmontRegion
Italy- not defined -
Morasco area, Ossola Valley, Verbano-Cusio-Ossola Province, Piedmont, Italy

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Latitude & Longitude (WGS84):
46° 25' 9'' North , 8° 23' 41'' East
Latitude & Longitude (decimal):
46.41933,8.39473
GeoHash:
G#: u0mbp42u5
GRN:
N31E05
Area:
1.0 km2
Type:
Area
KΓΆppen climate type:
Dfc : Subarctic climate
Mindat Locality ID:
56423
Long-form identifier:
mindat:1:2:56423:7
GUID (UUID V4):
42c57877-21d2-4115-80a6-8b7c3ca8c6d3
Name(s) in local language(s):
Area di Morasco, Formazza (Pomatt), Val Formazza (Pomattertal), Val d'Ossola, Provincia del Verbano-Cusio-Ossola, Piemonte, Italia


Morasco (Moraschg; Morast) was a summer village, located in Valle di Morasco near the confluence of Rio NefelgiΓΉ with Rio del Gries, submerged during the construction of the homonymous artificial lake (period 1940-1954). The dam (coordinates 46Β°25'40" N, 8Β°23'46" E) of the Morasco hydroelectric reservoir is 525 m long and 55 m high.

The area surronding the Morasco artificial lake is characterised by calcschists of the Lebendun Mesozoic series with embedded layers of mica schishts, quartzite, and carbonate rocks (dolomitic marble, etc.). Typical minerals of these rocks are quartz, muscovite, carbonates (calcite, siderite, ankerite), albite, adularia, rutile (as large crystals or as acicular crystal aggregates forming mesh-like networks [var. sagenite]), dravite, pyrite and other sulfides. Other minerals, such as chlorite, aragonite, talc, graphite, kyanite, garnet, etc., are sometimes found.
Weathered calcschists are brittle and shows a brown-red colour; iron-bearing minerals (pyrite, siderite, ankerite, and ferriferous calcite) alter progressively into limonite and complete pseudomorphs and skeletal relics can be found. Muscovite sometimes alters into illite, that may appear as radiating platy spherules on muscovite crystals.

Double-terminated flattened crystals of quartz have been found in calcschit fissures to the southeast of the lake, towards the valley ascending to Corno di Ban. Kyanite is typically found in the area of Alpe Bettelmatt (BΓ€ttelmatt), to the northwest of the lake.

Fresh rocks were encountered during excavation works for the hydropower project and the Gries Pass tunnel to connetcs the Swiss Transitgas pipeline to the Italian gas network. In particular, the tunnel excavated in 1974 for the natural gas pipeline evidenced good crystals of marcasite, calcite, and ankerite in calcschists; sphalerite, stibnite, tennantite, molybdenite-3R, and talc in dolomitic marble (Graeser & Stalder, 1974; Roggiani, 1975; Mattioli, 1979).

Being a collecting area the reported coordinates are to be intended as a sort of "starting point".

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


21 valid minerals.

Detailed Mineral List:

β“˜ Albite
Formula: Na(AlSi3O8)
β“˜ Ankerite
Formula: Ca(Fe2+,Mg)(CO3)2
β“˜ Aragonite
Formula: CaCO3
β“˜ Bornite
Formula: Cu5FeS4
β“˜ Calcite
Formula: CaCO3
β“˜ 'Chlorite Group'
β“˜ Chrysocolla
Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
β“˜ Dickite
Formula: Al2(Si2O5)(OH)4
β“˜ Dravite
Formula: NaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
β“˜ 'Garnet Group'
Formula: X3Z2(SiO4)3
β“˜ Graphite
Formula: C
β“˜ 'K Feldspar'
β“˜ 'K Feldspar var. Adularia'
Formula: KAlSi3O8
β“˜ Kyanite
Formula: Al2(SiO4)O
β“˜ 'Limonite'
β“˜ Marcasite
Formula: FeS2
β“˜ 'Molybdenite-3R'
Formula: MoS2
β“˜ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
β“˜ Muscovite var. Illite
Formula: K0.65Al2.0[Al0.65Si3.35O10](OH)2
β“˜ Pyrite
Formula: FeS2
β“˜ Quartz
Formula: SiO2
β“˜ Rutile
Formula: TiO2
β“˜ Rutile var. Sagenite (of Saussure)
Formula: TiO2
β“˜ Siderite
Formula: FeCO3
β“˜ Smythite
Formula: (Fe,Ni)3+xS4 (x=0-0.3)
Description: As bronze hexagonal plates included in calcite crystals and, rarely, in muscovite
β“˜ Sphalerite
Formula: ZnS
β“˜ Staurolite
Formula: Fe2+2Al9Si4O23(OH)
β“˜ Stibnite
Formula: Sb2S3
β“˜ Talc
Formula: Mg3Si4O10(OH)2
β“˜ 'Tennantite Subgroup'
Formula: Cu6(Cu4C2+2)As4S12S

Gallery:

SiO2β“˜ Quartz

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
β“˜Graphite1.CB.05aC
Group 2 - Sulphides and Sulfosalts
β“˜Bornite2.BA.15Cu5FeS4
β“˜Sphalerite2.CB.05aZnS
β“˜Smythite2.CC.10(Fe,Ni)3+xS4 (x=0-0.3)
β“˜Stibnite2.DB.05Sb2S3
β“˜Pyrite2.EB.05aFeS2
β“˜Marcasite2.EB.10aFeS2
β“˜'Tennantite Subgroup'2.GB.05Cu6(Cu4C2+2)As4S12S
Group 4 - Oxides and Hydroxides
β“˜Quartz4.DA.05SiO2
β“˜Rutile4.DB.05TiO2
β“˜var. Sagenite (of Saussure)4.DB.05TiO2
Group 5 - Nitrates and Carbonates
β“˜Calcite5.AB.05CaCO3
β“˜Siderite5.AB.05FeCO3
β“˜Ankerite5.AB.10Ca(Fe2+,Mg)(CO3)2
β“˜Aragonite5.AB.15CaCO3
Group 9 - Silicates
β“˜Kyanite9.AF.15Al2(SiO4)O
β“˜Staurolite9.AF.30Fe2+2Al9Si4O23(OH)
β“˜Dravite9.CK.05NaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
β“˜Talc9.EC.05Mg3Si4O10(OH)2
β“˜Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
β“˜var. Illite9.EC.15K0.65Al2.0[Al0.65Si3.35O10](OH)2
β“˜Dickite9.ED.05Al2(Si2O5)(OH)4
β“˜Chrysocolla9.ED.20Cu2-xAlx(H2-xSi2O5)(OH)4 Β· nH2O, x < 1
β“˜Albite9.FA.35Na(AlSi3O8)
Unclassified
β“˜'Garnet Group'-X3Z2(SiO4)3
β“˜'K Feldspar'-
β“˜'var. Adularia'-KAlSi3O8
β“˜'Limonite'-
β“˜'Chlorite Group'-
β“˜'Molybdenite-3R'-MoS2

List of minerals for each chemical element

HHydrogen
Hβ“˜ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Hβ“˜ DickiteAl2(Si2O5)(OH)4
Hβ“˜ DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
Hβ“˜ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Hβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Hβ“˜ StauroliteFe22+Al9Si4O23(OH)
Hβ“˜ TalcMg3Si4O10(OH)2
BBoron
Bβ“˜ DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
CCarbon
Cβ“˜ AnkeriteCa(Fe2+,Mg)(CO3)2
Cβ“˜ AragoniteCaCO3
Cβ“˜ CalciteCaCO3
Cβ“˜ GraphiteC
Cβ“˜ SideriteFeCO3
OOxygen
Oβ“˜ K Feldspar var. AdulariaKAlSi3O8
Oβ“˜ AlbiteNa(AlSi3O8)
Oβ“˜ AnkeriteCa(Fe2+,Mg)(CO3)2
Oβ“˜ AragoniteCaCO3
Oβ“˜ CalciteCaCO3
Oβ“˜ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Oβ“˜ DickiteAl2(Si2O5)(OH)4
Oβ“˜ DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
Oβ“˜ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Oβ“˜ KyaniteAl2(SiO4)O
Oβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Oβ“˜ QuartzSiO2
Oβ“˜ RutileTiO2
Oβ“˜ SideriteFeCO3
Oβ“˜ StauroliteFe22+Al9Si4O23(OH)
Oβ“˜ TalcMg3Si4O10(OH)2
Oβ“˜ Garnet GroupX3Z2(SiO4)3
Oβ“˜ Rutile var. Sagenite (of Saussure)TiO2
NaSodium
Naβ“˜ AlbiteNa(AlSi3O8)
Naβ“˜ DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
MgMagnesium
Mgβ“˜ AnkeriteCa(Fe2+,Mg)(CO3)2
Mgβ“˜ DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
Mgβ“˜ TalcMg3Si4O10(OH)2
AlAluminium
Alβ“˜ K Feldspar var. AdulariaKAlSi3O8
Alβ“˜ AlbiteNa(AlSi3O8)
Alβ“˜ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Alβ“˜ DickiteAl2(Si2O5)(OH)4
Alβ“˜ DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
Alβ“˜ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Alβ“˜ KyaniteAl2(SiO4)O
Alβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Alβ“˜ StauroliteFe22+Al9Si4O23(OH)
SiSilicon
Siβ“˜ K Feldspar var. AdulariaKAlSi3O8
Siβ“˜ AlbiteNa(AlSi3O8)
Siβ“˜ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Siβ“˜ DickiteAl2(Si2O5)(OH)4
Siβ“˜ DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
Siβ“˜ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Siβ“˜ KyaniteAl2(SiO4)O
Siβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Siβ“˜ QuartzSiO2
Siβ“˜ StauroliteFe22+Al9Si4O23(OH)
Siβ“˜ TalcMg3Si4O10(OH)2
Siβ“˜ Garnet GroupX3Z2(SiO4)3
SSulfur
Sβ“˜ BorniteCu5FeS4
Sβ“˜ MarcasiteFeS2
Sβ“˜ Molybdenite-3RMoS2
Sβ“˜ PyriteFeS2
Sβ“˜ Smythite(Fe,Ni)3+xS4 (x=0-0.3)
Sβ“˜ SphaleriteZnS
Sβ“˜ StibniteSb2S3
Sβ“˜ Tennantite SubgroupCu6(Cu4C22+)As4S12S
KPotassium
Kβ“˜ K Feldspar var. AdulariaKAlSi3O8
Kβ“˜ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Kβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Caβ“˜ AnkeriteCa(Fe2+,Mg)(CO3)2
Caβ“˜ AragoniteCaCO3
Caβ“˜ CalciteCaCO3
TiTitanium
Tiβ“˜ RutileTiO2
Tiβ“˜ Rutile var. Sagenite (of Saussure)TiO2
FeIron
Feβ“˜ AnkeriteCa(Fe2+,Mg)(CO3)2
Feβ“˜ BorniteCu5FeS4
Feβ“˜ MarcasiteFeS2
Feβ“˜ PyriteFeS2
Feβ“˜ SideriteFeCO3
Feβ“˜ Smythite(Fe,Ni)3+xS4 (x=0-0.3)
Feβ“˜ StauroliteFe22+Al9Si4O23(OH)
NiNickel
Niβ“˜ Smythite(Fe,Ni)3+xS4 (x=0-0.3)
CuCopper
Cuβ“˜ BorniteCu5FeS4
Cuβ“˜ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Cuβ“˜ Tennantite SubgroupCu6(Cu4C22+)As4S12S
ZnZinc
Znβ“˜ SphaleriteZnS
AsArsenic
Asβ“˜ Tennantite SubgroupCu6(Cu4C22+)As4S12S
MoMolybdenum
Moβ“˜ Molybdenite-3RMoS2
SbAntimony
Sbβ“˜ StibniteSb2S3

Other Regions, Features and Areas containing this locality

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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

Traverso, S. (1895): Geologia dell'Ossola. Tipogr. Angelo Ciminago, Genova, 275 pp.
Scaini, G. (1960): La cianite in Val Formazza. Natura, 51, 1, 25.
Graeser, S., Stalder, H.A. (1974): Mineral-Neufunde aus der Schweiz und angrenzenden Gebieten. I. Schweizer Strahler, 3, 7, 265-277.
Roggiani, A.G. (1975): Ossola minerale. Estratto da β€œNovara”, Bimestrale edito dalla Camera di Commercio Industria Artigianato e Agricoltura di Novara, nΒ°3, Tipogr. S. Gaudenzio, Novara, 112 pp.
Mattioli, V. (1979): Minerali Ossolani. Ed. Arti Grafiche Medesi, Milano, 268 pp.
Mattioli, V. (1988): Minerali ossolani, 10 anni dopo: errata corrige e novitΓ . II. Rivista Mineralogica Italiana, 12, 1 (1-1988), 39-44.
Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007) Minerali del Piemonte e della Valle d'Aosta - Associazione Amici del Museo "F. Eusebio" Alba.
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