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Freva Mine (Cuzzago Mine; Buèr Mine; Cuzzago & Nibbio Mine), Premosello-Chiovenda, Verbano-Cusio-Ossola Province, Piedmont, Italy i
Regional Level Types
Freva Mine (Cuzzago Mine; Buèr Mine; Cuzzago & Nibbio Mine) Mine
Premosello-Chiovenda Commune
Verbano-Cusio-Ossola Province Province
Piedmont Region
Italy Country

Freva Mine (Cuzzago Mine; Buèr Mine; Cuzzago & Nibbio Mine), Ossola Valley, Verbano-Cusio-Ossola Province, Piedmont, Italy

Regional Level Types
Freva Mine (Cuzzago Mine; Buèr Mine; Cuzzago & Nibbio Mine)	Mine
Premosello-Chiovenda	Commune
Verbano-Cusio-Ossola Province	Province
Piedmont	Region
Italy	Country

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View of Freva Mine

Freva Mine, Premosello-Chiovenda, Verbano-Cusio-Ossola Province, Piedmont, Italy

Cuzzago Mine

Freva Mine, Premosello-Chiovenda, Verbano-Cusio-Ossola Province, Piedmont, Italy

View of gallery with sulphate encrustations

Freva Mine, Premosello-Chiovenda, Verbano-Cusio-Ossola Province, Piedmont, Italy

View of Freva Mine

Freva Mine, Premosello-Chiovenda, Verbano-Cusio-Ossola Province, Piedmont, Italy

Cuzzago Mine

Freva Mine, Premosello-Chiovenda, Verbano-Cusio-Ossola Province, Piedmont, Italy

View of gallery with sulphate encrustations

Freva Mine, Premosello-Chiovenda, Verbano-Cusio-Ossola Province, Piedmont, Italy

View of Freva Mine

Freva Mine, Premosello-Chiovenda, Verbano-Cusio-Ossola Province, Piedmont, Italy

Cuzzago Mine

Freva Mine, Premosello-Chiovenda, Verbano-Cusio-Ossola Province, Piedmont, Italy

Latitude & Longitude (WGS84):

45° 59' 55'' North , 8° 23' 19'' East

Latitude & Longitude (decimal):

Type:

Köppen climate type:

Cfb : Temperate oceanic climate

Nearest Settlements:

Place	Population	Distance
Cuzzago	444 (2014)	1.5km
Gabbio	257 (2014)	2.1km
Albo I	229 (2014)	2.8km
Anzola d'Ossola	438 (2014)	3.5km
Candoglia	210 (2016)	3.8km

Nearest Clubs:
Local clubs are the best way to get access to collecting localities

Club	Location	Distance
Club Cercatori di Minerali e Fossili Ticino	Viganello, Ticino	45km

Mindat Locality ID:

147145

Long-form identifier:

mindat:1:2:147145:1

GUID (UUID V4):

Name(s) in local language(s):

Miniera di Cuzzago (Miniera della Freva; Miniera del Buèr; Miniera di Cuzzago & Nibbio), Premosello Chiovenda, Val d'Ossola, Provincia del Verbano-Cusio-Ossola, Piemonte, Italia

Old Fe-Cu mine (with very minor Ni). It consists of several adits scattered in the rock wall. The main ore mineral is pyrrhotite. The ore is hosted in "volcano-sedimentary" mineralizations later re-arranged under regional metamorphism (close to the transition from amphibolite to granulite facies). The host rocks belongs to the kinzingite series of the "Ivrea-Verbano Complex".

Note: for this old mining area, located between the villages of Nibbio (Mergozzo municipality) and Cuzzago (a former separated municipality, from 1928 annexed to the one of Premosello Chiovenda), various names have been used by different authors (Cuzzago mine, Freva mine, Buèr mine, Cuzzago and Nibbio mine). Scaini (1971) used for this locality the misleading name Nibbio mine, which better identified the mine (short adit) located at Turrio (Motto del Turrio), between the villages of Nibbio and Bettola [see: http://www.mindat.org/loc-187814.html].

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

48 valid minerals.

Detailed Mineral List:

ⓘ Actinolite

Formula: ◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂

References:

Michele Verdi, Mauro Savia, Erica Bittarello, Piero Brizio, Marco E. Ciriotti (2025) Nuovi ritroovamenti alla miniera dismessa Freva, Premosello-Chiovanda, e Mergozzo, Verbano-Cusio-Ossola, Piemonte. Micro, 23, 290-307.

ⓘ Albite

Formula: Na(AlSi₃O₈)

References:

ⓘ Alunogen

Formula: Al₂(SO₄)₃ · 17H₂O

References:

Scaini G. (1971): L'alunogeno della miniera del Nibbio a Mergozzo (Ossola). Natura, 42, (2), 230-231.

Mattioli, V. (1979) Minerali Ossolani. Ed. Arti Grafiche Medesi, Milano, 268 pp.

ⓘ Anatase

Formula: TiO₂

References:

ⓘ Aragonite

Formula: CaCO₃

References:

ⓘ Arsenopyrite

Formula: FeAsS

References:

Petrologia e Giacimentologia della serie Diorito-Kinzigitica tra la Val d'Ossola e la Val Grande (Novara). Tesi di Laurea 1977-78 Relatore Dott. Alfredo Ferrario, Correlatori Dott. Biagio Bigioggero Prof. Attilio Boriani, Laureando Salvatore Palumbo

ⓘ Brochantite

Formula: Cu₄(SO₄)(OH)₆

References:

ⓘ Brookite

Formula: TiO₂

References:

ⓘ Calcite

Formula: CaCO₃

References:

ⓘ Chabazite-Ca

Formula: (Ca,K₂,Na₂)₂[Al₂Si₄O₁₂]₂ · 12H₂O

References:

ⓘ Chalcanthite

Formula: CuSO₄ · 5H₂O

References:

Scaini G. (1971): L'alunogeno della miniera del Nibbio a Mergozzo (Ossola). Natura, 42, (2), 230-231.

Mattioli, V. (1979) Minerali Ossolani. Ed. Arti Grafiche Medesi, Milano, 268 pp.

ⓘ Chalcopyrite

Formula: CuFeS₂

References:

Jervis, Guglielmo (1873) I tesori sotterranei dell'Italia descrizione topografica e geologica di tutte le localita nel Regno d'Italia [The underground treasures of Italy topographical and geological description of all the locations in the Kingdom of Italy] Vol. 1 - Regione Della Alpi.

ⓘ Chrysocolla

Formula: Cu_2-xAl_x(H_2-xSi₂O₅)(OH)₄ · nH₂O, x < 1

References:

ⓘ Clinochlore

Formula: Mg₅Al(AlSi₃O₁₀)(OH)₈

References:

ⓘ Clinozoisite

Formula: (CaCa)(AlAlAl)O[Si₂O₇][SiO₄](OH)

References:

ⓘ Copiapite

Formula: Fe²⁺Fe³⁺₄(SO₄)₆(OH)₂ · 20H₂O

References:

Scaini G. (1971): L'alunogeno della miniera del Nibbio a Mergozzo (Ossola). Natura, 42, (2), 230-231.

Mattioli, V. (1979) Minerali Ossolani. Ed. Arti Grafiche Medesi, Milano, 268 pp.

ⓘ Covellite

Formula: CuS

References:

ⓘ Cuprite

Formula: Cu₂O

References:

ⓘ Graphite

Formula: C

References:

ⓘ Gypsum

Formula: CaSO₄ · 2H₂O

References:

Mattioli, V. (1979) Minerali Ossolani. Ed. Arti Grafiche Medesi, Milano, 268 pp.

ⓘ Hematite

Formula: Fe₂O₃

References:

ⓘ Jarosite

Formula: KFe³⁺₃(SO₄)₂(OH)₆

References:

ⓘ Lithiophorite ?

Formula: (Al,Li)MnO₂(OH)₂

References:

ⓘ Mackinawite

Formula: FeS

References:

ⓘ Magnetite

Formula: Fe²⁺Fe³⁺₂O₄

References:

ⓘ Malachite

Formula: Cu₂(CO₃)(OH)₂

References:

ⓘ Marcasite

Formula: FeS₂

References:

ⓘ Melanterite

Formula: Fe²⁺(H₂O)₆SO₄ · H₂O

References:

Scaini G. (1971): L'alunogeno della miniera del Nibbio a Mergozzo (Ossola). Natura, 42, (2), 230-231.

ⓘ Molybdenite

Formula: MoS₂

References:

ⓘ Montmorillonite

Formula: (Na,Ca)_0.33(Al,Mg)₂(Si₄O₁₀)(OH)₂ · nH₂O

References:

ⓘ Morenosite

Formula: NiSO₄ · 7H₂O

References:

Scaini G. (1971): L'alunogeno della miniera del Nibbio a Mergozzo (Ossola). Natura, 42, (2), 230-231.

Mattioli, V. (1979) Minerali Ossolani. Ed. Arti Grafiche Medesi, Milano, 268 pp.

ⓘ Native Copper

Formula: Cu

References:

ⓘ Native Sulphur

Formula: S₈

References:

ⓘ Natrojarosite

Formula: NaFe₃(SO₄)₂(OH)₆

References:

ⓘ Paragonite

Formula: NaAl₂(AlSi₃O₁₀)(OH)₂

References:

ⓘ Pargasite

Formula: NaCa₂(Mg₄Al)(Si₆Al₂)O₂₂(OH)₂

References:

ⓘ Pickeringite

Formula: MgAl₂(SO₄)₄ · 22H₂O

References:

Scaini G. (1971): L'alunogeno della miniera del Nibbio a Mergozzo (Ossola). Natura, 42, (2), 230-231.

Mattioli, V. (1979) Minerali Ossolani. Ed. Arti Grafiche Medesi, Milano, 268 pp.

ⓘ 'Plagioclase'

Formula: (Na,Ca)[(Si,Al)AlSi₂]O₈

References:

ⓘ Pyrite

Formula: FeS₂

References:

ⓘ Pyrrhotite

Formula: Fe_1-xS

References:

ⓘ Quartz

Formula: SiO₂

References:

ⓘ Rozenite

Formula: FeSO₄ · 4H₂O

References:

Scaini G. (1971): L'alunogeno della miniera del Nibbio a Mergozzo (Ossola). Natura, 42, (2), 230-231.

Mattioli, V. (1979) Minerali Ossolani. Ed. Arti Grafiche Medesi, Milano, 268 pp.

ⓘ Rutile

Formula: TiO₂

References:

ⓘ Siderite

Formula: FeCO₃

References:

ⓘ Siderotil

Formula: FeSO₄ · 5H₂O

References:

ⓘ Sphalerite

Formula: ZnS

References:

ⓘ Spinel

Formula: MgAl₂O₄

References:

ⓘ Szomolnokite

Formula: FeSO₄ · H₂O

References:

Mattioli, V. (1979) Minerali Ossolani. Ed. Arti Grafiche Medesi, Milano, 268 pp.

ⓘ 'Tetrahedrite Subgroup'

Formula: Cu₆(Cu₄C²⁺₂)Sb₄S₁₂S

References:

ⓘ Titanite

Formula: CaTi(SiO₄)O

References:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘ	Native Copper	1.AA.05	Cu
ⓘ	Graphite	1.CB.05a	C
ⓘ	Native Sulphur	1.CC.05	S₈
Group 2 - Sulphides and Sulfosalts
ⓘ	Covellite	2.CA.05a	CuS
ⓘ	Sphalerite	2.CB.05a	ZnS
ⓘ	Chalcopyrite	2.CB.10a	CuFeS₂
ⓘ	Pyrrhotite	2.CC.10	Fe_1-xS
ⓘ	Mackinawite	2.CC.25	FeS
ⓘ	Molybdenite	2.EA.30	MoS₂
ⓘ	Pyrite	2.EB.05a	FeS₂
ⓘ	Marcasite	2.EB.10a	FeS₂
ⓘ	Arsenopyrite	2.EB.20	FeAsS
ⓘ	'Tetrahedrite Subgroup'	2.GB.05	Cu₆(Cu₄C²⁺₂)Sb₄S₁₂S
Group 4 - Oxides and Hydroxides
ⓘ	Cuprite	4.AA.10	Cu₂O
ⓘ	Magnetite	4.BB.05	Fe²⁺Fe³⁺₂O₄
ⓘ	Spinel	4.BB.05	MgAl₂O₄
ⓘ	Hematite	4.CB.05	Fe₂O₃
ⓘ	Quartz	4.DA.05	SiO₂
ⓘ	Rutile	4.DB.05	TiO₂
ⓘ	Anatase	4.DD.05	TiO₂
ⓘ	Brookite	4.DD.10	TiO₂
ⓘ	Lithiophorite ?	4.FE.25	(Al,Li)MnO₂(OH)₂
Group 5 - Nitrates and Carbonates
ⓘ	Calcite	5.AB.05	CaCO₃
ⓘ	Siderite	5.AB.05	FeCO₃
ⓘ	Aragonite	5.AB.15	CaCO₃
ⓘ	Malachite	5.BA.10	Cu₂(CO₃)(OH)₂
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘ	Brochantite	7.BB.25	Cu₄(SO₄)(OH)₆
ⓘ	Jarosite	7.BC.10	KFe³⁺₃(SO₄)₂(OH)₆
ⓘ	Natrojarosite	7.BC.10	NaFe₃(SO₄)₂(OH)₆
ⓘ	Szomolnokite	7.CB.05	FeSO₄ · H₂O
ⓘ	Rozenite	7.CB.15	FeSO₄ · 4H₂O
ⓘ	Chalcanthite	7.CB.20	CuSO₄ · 5H₂O
ⓘ	Siderotil	7.CB.20	FeSO₄ · 5H₂O
ⓘ	Melanterite	7.CB.35	Fe²⁺(H₂O)₆SO₄ · H₂O
ⓘ	Morenosite	7.CB.40	NiSO₄ · 7H₂O
ⓘ	Alunogen	7.CB.45	Al₂(SO₄)₃ · 17H₂O
ⓘ	Pickeringite	7.CB.85	MgAl₂(SO₄)₄ · 22H₂O
ⓘ	Gypsum	7.CD.40	CaSO₄ · 2H₂O
ⓘ	Copiapite	7.DB.35	Fe²⁺Fe³⁺₄(SO₄)₆(OH)₂ · 20H₂O
Group 9 - Silicates
ⓘ	Titanite	9.AG.15	CaTi(SiO₄)O
ⓘ	Clinozoisite	9.BG.05a	(CaCa)(AlAlAl)O[Si₂O₇][SiO₄](OH)
ⓘ	Actinolite	9.DE.10	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
ⓘ	Pargasite	9.DE.15	NaCa₂(Mg₄Al)(Si₆Al₂)O₂₂(OH)₂
ⓘ	Paragonite	9.EC.15	NaAl₂(AlSi₃O₁₀)(OH)₂
ⓘ	Montmorillonite	9.EC.40	(Na,Ca)_0.33(Al,Mg)₂(Si₄O₁₀)(OH)₂ · nH₂O
ⓘ	Clinochlore	9.EC.55	Mg₅Al(AlSi₃O₁₀)(OH)₈
ⓘ	Chrysocolla	9.ED.20	Cu_2-xAl_x(H_2-xSi₂O₅)(OH)₄ · nH₂O, x < 1
ⓘ	Albite	9.FA.35	Na(AlSi₃O₈)
ⓘ	Chabazite-Ca	9.GD.10	(Ca,K₂,Na₂)₂[Al₂Si₄O₁₂]₂ · 12H₂O
Unclassified
ⓘ	'Plagioclase'	-	(Na,Ca)[(Si,Al)AlSi₂]O₈

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Actinolite	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
H	ⓘ Alunogen	Al₂(SO₄)₃ · 17H₂O
H	ⓘ Brochantite	Cu₄(SO₄)(OH)₆
H	ⓘ Chalcanthite	CuSO₄ · 5H₂O
H	ⓘ Chrysocolla	Cu_2-xAl_x(H_2-xSi₂O₅)(OH)₄ · nH₂O, x < 1
H	ⓘ Clinochlore	Mg₅Al(AlSi₃O₁₀)(OH)₈
H	ⓘ Clinozoisite	(CaCa)(AlAlAl)O[Si₂O₇][SiO₄](OH)
H	ⓘ Copiapite	Fe²⁺Fe₄³⁺(SO₄)₆(OH)₂ · 20H₂O
H	ⓘ Gypsum	CaSO₄ · 2H₂O
H	ⓘ Jarosite	KFe₃³⁺(SO₄)₂(OH)₆
H	ⓘ Lithiophorite	(Al,Li)MnO₂(OH)₂
H	ⓘ Malachite	Cu₂(CO₃)(OH)₂
H	ⓘ Melanterite	Fe²⁺(H₂O)₆SO₄ · H₂O
H	ⓘ Morenosite	NiSO₄ · 7H₂O
H	ⓘ Montmorillonite	(Na,Ca)_0.33(Al,Mg)₂(Si₄O₁₀)(OH)₂ · nH₂O
H	ⓘ Natrojarosite	NaFe₃(SO₄)₂(OH)₆
H	ⓘ Paragonite	NaAl₂(AlSi₃O₁₀)(OH)₂
H	ⓘ Pargasite	NaCa₂(Mg₄Al)(Si₆Al₂)O₂₂(OH)₂
H	ⓘ Pickeringite	MgAl₂(SO₄)₄ · 22H₂O
H	ⓘ Rozenite	FeSO₄ · 4H₂O
H	ⓘ Siderotil	FeSO₄ · 5H₂O
H	ⓘ Szomolnokite	FeSO₄ · H₂O
H	ⓘ Chabazite-Ca	(Ca,K₂,Na₂)₂[Al₂Si₄O₁₂]₂ · 12H₂O
Li	Lithium
Li	ⓘ Lithiophorite	(Al,Li)MnO₂(OH)₂
C	Carbon
C	ⓘ Aragonite	CaCO₃
C	ⓘ Calcite	CaCO₃
C	ⓘ Graphite	C
C	ⓘ Malachite	Cu₂(CO₃)(OH)₂
C	ⓘ Siderite	FeCO₃
O	Oxygen
O	ⓘ Actinolite	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
O	ⓘ Albite	Na(AlSi₃O₈)
O	ⓘ Alunogen	Al₂(SO₄)₃ · 17H₂O
O	ⓘ Anatase	TiO₂
O	ⓘ Aragonite	CaCO₃
O	ⓘ Brochantite	Cu₄(SO₄)(OH)₆
O	ⓘ Brookite	TiO₂
O	ⓘ Calcite	CaCO₃
O	ⓘ Chalcanthite	CuSO₄ · 5H₂O
O	ⓘ Chrysocolla	Cu_2-xAl_x(H_2-xSi₂O₅)(OH)₄ · nH₂O, x < 1
O	ⓘ Clinochlore	Mg₅Al(AlSi₃O₁₀)(OH)₈
O	ⓘ Clinozoisite	(CaCa)(AlAlAl)O[Si₂O₇][SiO₄](OH)
O	ⓘ Copiapite	Fe²⁺Fe₄³⁺(SO₄)₆(OH)₂ · 20H₂O
O	ⓘ Cuprite	Cu₂O
O	ⓘ Gypsum	CaSO₄ · 2H₂O
O	ⓘ Hematite	Fe₂O₃
O	ⓘ Jarosite	KFe₃³⁺(SO₄)₂(OH)₆
O	ⓘ Lithiophorite	(Al,Li)MnO₂(OH)₂
O	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
O	ⓘ Malachite	Cu₂(CO₃)(OH)₂
O	ⓘ Melanterite	Fe²⁺(H₂O)₆SO₄ · H₂O
O	ⓘ Morenosite	NiSO₄ · 7H₂O
O	ⓘ Montmorillonite	(Na,Ca)_0.33(Al,Mg)₂(Si₄O₁₀)(OH)₂ · nH₂O
O	ⓘ Natrojarosite	NaFe₃(SO₄)₂(OH)₆
O	ⓘ Paragonite	NaAl₂(AlSi₃O₁₀)(OH)₂
O	ⓘ Pargasite	NaCa₂(Mg₄Al)(Si₆Al₂)O₂₂(OH)₂
O	ⓘ Pickeringite	MgAl₂(SO₄)₄ · 22H₂O
O	ⓘ Quartz	SiO₂
O	ⓘ Rozenite	FeSO₄ · 4H₂O
O	ⓘ Rutile	TiO₂
O	ⓘ Siderotil	FeSO₄ · 5H₂O
O	ⓘ Siderite	FeCO₃
O	ⓘ Spinel	MgAl₂O₄
O	ⓘ Szomolnokite	FeSO₄ · H₂O
O	ⓘ Titanite	CaTi(SiO₄)O
O	ⓘ Chabazite-Ca	(Ca,K₂,Na₂)₂[Al₂Si₄O₁₂]₂ · 12H₂O
O	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Na	Sodium
Na	ⓘ Albite	Na(AlSi₃O₈)
Na	ⓘ Montmorillonite	(Na,Ca)_0.33(Al,Mg)₂(Si₄O₁₀)(OH)₂ · nH₂O
Na	ⓘ Natrojarosite	NaFe₃(SO₄)₂(OH)₆
Na	ⓘ Paragonite	NaAl₂(AlSi₃O₁₀)(OH)₂
Na	ⓘ Pargasite	NaCa₂(Mg₄Al)(Si₆Al₂)O₂₂(OH)₂
Na	ⓘ Chabazite-Ca	(Ca,K₂,Na₂)₂[Al₂Si₄O₁₂]₂ · 12H₂O
Na	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Mg	Magnesium
Mg	ⓘ Actinolite	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
Mg	ⓘ Clinochlore	Mg₅Al(AlSi₃O₁₀)(OH)₈
Mg	ⓘ Montmorillonite	(Na,Ca)_0.33(Al,Mg)₂(Si₄O₁₀)(OH)₂ · nH₂O
Mg	ⓘ Pargasite	NaCa₂(Mg₄Al)(Si₆Al₂)O₂₂(OH)₂
Mg	ⓘ Pickeringite	MgAl₂(SO₄)₄ · 22H₂O
Mg	ⓘ Spinel	MgAl₂O₄
Al	Aluminium
Al	ⓘ Albite	Na(AlSi₃O₈)
Al	ⓘ Alunogen	Al₂(SO₄)₃ · 17H₂O
Al	ⓘ Chrysocolla	Cu_2-xAl_x(H_2-xSi₂O₅)(OH)₄ · nH₂O, x < 1
Al	ⓘ Clinochlore	Mg₅Al(AlSi₃O₁₀)(OH)₈
Al	ⓘ Clinozoisite	(CaCa)(AlAlAl)O[Si₂O₇][SiO₄](OH)
Al	ⓘ Lithiophorite	(Al,Li)MnO₂(OH)₂
Al	ⓘ Montmorillonite	(Na,Ca)_0.33(Al,Mg)₂(Si₄O₁₀)(OH)₂ · nH₂O
Al	ⓘ Paragonite	NaAl₂(AlSi₃O₁₀)(OH)₂
Al	ⓘ Pargasite	NaCa₂(Mg₄Al)(Si₆Al₂)O₂₂(OH)₂
Al	ⓘ Pickeringite	MgAl₂(SO₄)₄ · 22H₂O
Al	ⓘ Spinel	MgAl₂O₄
Al	ⓘ Chabazite-Ca	(Ca,K₂,Na₂)₂[Al₂Si₄O₁₂]₂ · 12H₂O
Al	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Si	Silicon
Si	ⓘ Actinolite	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
Si	ⓘ Albite	Na(AlSi₃O₈)
Si	ⓘ Chrysocolla	Cu_2-xAl_x(H_2-xSi₂O₅)(OH)₄ · nH₂O, x < 1
Si	ⓘ Clinochlore	Mg₅Al(AlSi₃O₁₀)(OH)₈
Si	ⓘ Clinozoisite	(CaCa)(AlAlAl)O[Si₂O₇][SiO₄](OH)
Si	ⓘ Montmorillonite	(Na,Ca)_0.33(Al,Mg)₂(Si₄O₁₀)(OH)₂ · nH₂O
Si	ⓘ Paragonite	NaAl₂(AlSi₃O₁₀)(OH)₂
Si	ⓘ Pargasite	NaCa₂(Mg₄Al)(Si₆Al₂)O₂₂(OH)₂
Si	ⓘ Quartz	SiO₂
Si	ⓘ Titanite	CaTi(SiO₄)O
Si	ⓘ Chabazite-Ca	(Ca,K₂,Na₂)₂[Al₂Si₄O₁₂]₂ · 12H₂O
Si	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
S	Sulfur
S	ⓘ Alunogen	Al₂(SO₄)₃ · 17H₂O
S	ⓘ Arsenopyrite	FeAsS
S	ⓘ Brochantite	Cu₄(SO₄)(OH)₆
S	ⓘ Chalcopyrite	CuFeS₂
S	ⓘ Chalcanthite	CuSO₄ · 5H₂O
S	ⓘ Copiapite	Fe²⁺Fe₄³⁺(SO₄)₆(OH)₂ · 20H₂O
S	ⓘ Covellite	CuS
S	ⓘ Gypsum	CaSO₄ · 2H₂O
S	ⓘ Jarosite	KFe₃³⁺(SO₄)₂(OH)₆
S	ⓘ Mackinawite	FeS
S	ⓘ Marcasite	FeS₂
S	ⓘ Melanterite	Fe²⁺(H₂O)₆SO₄ · H₂O
S	ⓘ Molybdenite	MoS₂
S	ⓘ Morenosite	NiSO₄ · 7H₂O
S	ⓘ Natrojarosite	NaFe₃(SO₄)₂(OH)₆
S	ⓘ Pickeringite	MgAl₂(SO₄)₄ · 22H₂O
S	ⓘ Pyrite	FeS₂
S	ⓘ Pyrrhotite	Fe_1-xS
S	ⓘ Rozenite	FeSO₄ · 4H₂O
S	ⓘ Siderotil	FeSO₄ · 5H₂O
S	ⓘ Sphalerite	ZnS
S	ⓘ Native Sulphur	S₈
S	ⓘ Szomolnokite	FeSO₄ · H₂O
S	ⓘ Tetrahedrite Subgroup	Cu₆(Cu₄C₂²⁺)Sb₄S₁₂S
K	Potassium
K	ⓘ Jarosite	KFe₃³⁺(SO₄)₂(OH)₆
K	ⓘ Chabazite-Ca	(Ca,K₂,Na₂)₂[Al₂Si₄O₁₂]₂ · 12H₂O
Ca	Calcium
Ca	ⓘ Actinolite	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
Ca	ⓘ Aragonite	CaCO₃
Ca	ⓘ Calcite	CaCO₃
Ca	ⓘ Clinozoisite	(CaCa)(AlAlAl)O[Si₂O₇][SiO₄](OH)
Ca	ⓘ Gypsum	CaSO₄ · 2H₂O
Ca	ⓘ Montmorillonite	(Na,Ca)_0.33(Al,Mg)₂(Si₄O₁₀)(OH)₂ · nH₂O
Ca	ⓘ Pargasite	NaCa₂(Mg₄Al)(Si₆Al₂)O₂₂(OH)₂
Ca	ⓘ Titanite	CaTi(SiO₄)O
Ca	ⓘ Chabazite-Ca	(Ca,K₂,Na₂)₂[Al₂Si₄O₁₂]₂ · 12H₂O
Ca	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Ti	Titanium
Ti	ⓘ Anatase	TiO₂
Ti	ⓘ Brookite	TiO₂
Ti	ⓘ Rutile	TiO₂
Ti	ⓘ Titanite	CaTi(SiO₄)O
Mn	Manganese
Mn	ⓘ Lithiophorite	(Al,Li)MnO₂(OH)₂
Fe	Iron
Fe	ⓘ Actinolite	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
Fe	ⓘ Arsenopyrite	FeAsS
Fe	ⓘ Chalcopyrite	CuFeS₂
Fe	ⓘ Copiapite	Fe²⁺Fe₄³⁺(SO₄)₆(OH)₂ · 20H₂O
Fe	ⓘ Hematite	Fe₂O₃
Fe	ⓘ Jarosite	KFe₃³⁺(SO₄)₂(OH)₆
Fe	ⓘ Mackinawite	FeS
Fe	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
Fe	ⓘ Marcasite	FeS₂
Fe	ⓘ Melanterite	Fe²⁺(H₂O)₆SO₄ · H₂O
Fe	ⓘ Natrojarosite	NaFe₃(SO₄)₂(OH)₆
Fe	ⓘ Pyrite	FeS₂
Fe	ⓘ Pyrrhotite	Fe_1-xS
Fe	ⓘ Rozenite	FeSO₄ · 4H₂O
Fe	ⓘ Siderotil	FeSO₄ · 5H₂O
Fe	ⓘ Siderite	FeCO₃
Fe	ⓘ Szomolnokite	FeSO₄ · H₂O
Ni	Nickel
Ni	ⓘ Morenosite	NiSO₄ · 7H₂O
Cu	Copper
Cu	ⓘ Brochantite	Cu₄(SO₄)(OH)₆
Cu	ⓘ Chalcopyrite	CuFeS₂
Cu	ⓘ Chalcanthite	CuSO₄ · 5H₂O
Cu	ⓘ Chrysocolla	Cu_2-xAl_x(H_2-xSi₂O₅)(OH)₄ · nH₂O, x < 1
Cu	ⓘ Covellite	CuS
Cu	ⓘ Cuprite	Cu₂O
Cu	ⓘ Native Copper	Cu
Cu	ⓘ Malachite	Cu₂(CO₃)(OH)₂
Cu	ⓘ Tetrahedrite Subgroup	Cu₆(Cu₄C₂²⁺)Sb₄S₁₂S
Zn	Zinc
Zn	ⓘ Sphalerite	ZnS
As	Arsenic
As	ⓘ Arsenopyrite	FeAsS
Mo	Molybdenum
Mo	ⓘ Molybdenite	MoS₂
Sb	Antimony
Sb	ⓘ Tetrahedrite Subgroup	Cu₆(Cu₄C₂²⁺)Sb₄S₁₂S

Other Regions, Features and Areas containing this locality

Eurasian PlateTectonic Plate

AlpsAccretionary Complex

EuropeContinent

The AlpsMountain Range
- Ivrea ZoneTerrane

Italy

Piedmont
- Verbano-Cusio-Ossola Province
  - Ossola ValleyValley

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References

Huttenlocher, H.F. (1934): Die Erzlagerstättenzonen der Westalpen. Schweiz. Mineral. Petr. Mitt., 14, 22-149 & Beitr. Geol. Schweiz, Geotechn. Serie, Kl. Mitt., 4, 149 pp.

Scaini G. (1971): L'alunogeno della miniera del Nibbio a Mergozzo (Ossola). Natura, 42, (2), 230-231.

Palumbo S. (1977-78): Petrologia e Giacimentologia della serie Diorito-Kinzigitica tra la Val d'Ossola e la Val Grande (Novara). Tesi di Laurea 1977-78, Relatore Dott. Alfredo Ferrario, Correlatori Dott. Biagio Bigioggero Prof. Attilio Boriani. Università degli Studi di Milano.

Mattioli, V. (1979) Minerali Ossolani. Ed. Arti Grafiche Medesi, Milano, 268 pp.

Mattioli V. (1983): I minerali dei differenziati acidi e basici dell'Ossola inferiore (NO). Riv. Mineral. Ital., 1983, 1, 23-26.

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.

www.mindat.org (2016) http://www.mindat.org/mesg-105-308121.html

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References