Aosta Valley, Italy

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Detailed Mineral List:

Actinolite
Formula:	☐{Ca2}{(Mg,Fe2+)5}(Si8O22)(OH)2
Localities:	Reported from at least 8 localities in this region.
Photo: © GiovanniFraccaro. Actinolite from Prabornaz Mine, Saint-Marcel, Aosta Valley, Italy
Aegirine
Formula:	NaFe3+Si2O6
Localities:	Prabornaz Mine (ex Praborna Mine), Saint-Marcel, Aosta Valley, Italy Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy
Aegirine-augite
Formula:	(Na,Ca)(Fe3+,Fe2+,Mg,Al)Si2O6
Localities:	Cignana Lake, Valtournanche, Valtournanche Valley, Aosta Valley, Italy Prabornaz Mine (ex Praborna Mine), Saint-Marcel, Aosta Valley, Italy
'Aeschynite'
Locality:	Prè de Bar Glacier, Ferret Valley, Les Grandes Jorasses Massif, Courmayeur, Aosta Valley, Italy
Photo: © V. Cecile. Aeschynite from Triolet Glacier, Ferret Valley, Les Grandes Jorasses Massif, Courmayeur, Aosta Valley, Italy
Aeschynite-(Y)
Formula:	(Y,Ca,Fe,Th)(Ti,Nb)2(O,OH)6
Localities:	Miage Glacier, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy Triolet Glacier, Ferret Valley, Les Grandes Jorasses Massif, Courmayeur, Aosta Valley, Italy Brenva Glacier, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy
Photo: © G.Fraccaro. Aeschynite-(Y) from Triolet Glacier, Ferret Valley, Les Grandes Jorasses Massif, Courmayeur, Aosta Valley, Italy
Albite
Formula:	NaAlSi3O8
Localities:	Reported from at least 10 localities in this region.
Photo: © Enrico Bonacina. Albite from Miage Glacier, Veny Valley, Monte Bianco Massif, Courmayeur, Aosta Valley, Italy
'Allanite'
Localities:	Brenva Glacier, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy Miage Glacier, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy Plan de Raye, Mort Mt., Saint-Rhèmy-en-Bosses, Gran San Bernardo Valley, Aosta Valley, Italy
Allanite-(Ce)
Formula:	{CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Locality:	Triolet Glacier, Ferret Valley, Les Grandes Jorasses Massif, Courmayeur, Aosta Valley, Italy
Almandine
Formula:	Fe2+3Al2(SiO4)3
Localities:	Miage Glacier, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy Servette-Chuc Mine, Saint-Marcel, Aosta Valley, Italy Perloz, Lys Valley, Aosta Valley, Italy Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy
Photo: © GiovanniFraccaro. Almandine from Servette-Chuc Mine, Saint-Marcel, Aosta Valley, Italy
'Almandine-Pyrope Series'
Locality:	Perloz, Lys Valley, Aosta Valley, Italy
Altaite
Formula:	PbTe
Locality:	Triolet Glacier, Ferret Valley, Les Grandes Jorasses Massif, Courmayeur, Aosta Valley, Italy
Aluminoceladonite
Formula:	K(Mg,Fe2+)Al(Si4O10)(OH)2
Locality:	Prabornaz Mine (ex Praborna Mine), Saint-Marcel, Aosta Valley, Italy
Anatase
Formula:	TiO2
Localities:	Reported from at least 10 localities in this region.
Photo: © Chinellato Matteo. Anatase from Miage Glacier, Veny Valley, Monte Bianco Massif, Courmayeur, Aosta Valley, Italy
Andradite
Formula:	Ca3Fe3+2(SiO4)3
Localities:	Ponte delle Capre, Châtillon, Aosta Valley, Italy Notre Dame de la Garde Chapel, Valtournanche, Valtournanche Valley, Aosta Valley, Italy Petit Monde Tunnel, Montjovet, Aosta Valley, Italy Banchettes, Montjovet, Aosta Valley, Italy Cogne Mines, Cogne, Cogne Valley, Aosta Valley, Italy
Photo: © Chinellato Matteo. Andradite from Bellecombe, Châtillon, Aosta Valley, Italy
Andradite var: Demantoid
Localities:	Settarme-Chassant Mine, Emarese, Aosta Valley, Italy Saint-Vincent, Aosta Valley, Italy
Photo: Demantoid from Settarme-Chassant Mine, Emarese, Aosta Valley, Italy
Andradite var: Topazolite
Localities:	Les Perrères Dam, Valtournanche, Valtournanche Valley, Aosta Valley, Italy Gouffre de Bousserailles, Valtournanche, Valtournanche Valley, Aosta Valley, Italy Settarme-Chassant Mine, Emarese, Aosta Valley, Italy
Photo: © Fogliani Mattia. Topazolite from Valtournanche, Valtournanche Valley, Aosta Valley, Italy
'Anemousite'
Locality:	Monte Rosso di Verra, Champoluc, Ayas, Ayas Valley, Aosta Valley, Italy
Anglesite
Formula:	PbSO4
Localities:	Aiguille du Chatelet, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy Miage Glacier, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy Aiguille Noire du Peuterey, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy
Ankerite
Formula:	Ca(Fe2+,Mg)(CO3)2
Localities:	Plan d'Albard, Bard, Aosta Valley, Italy Mae mine, Challant Saint-Anselme, Ayas Valley, Aosta Valley, Italy Trivera mine, Challant Saint-Anselme, Ayas Valley, Aosta Valley, Italy
Annite
Formula:	KFe2+3(AlSi3O10)(OH)2
Locality:	Lex Blanche Glacier, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy
Photo: © G.Fraccaro. Annite from Lex Blanche Glacier, Veny Valley, Monte Bianco Massif, Courmayeur, Aosta Valley, Italy
Antigorite
Formula:	Mg3(Si2O5)(OH)4
Localities:	Settarme-Chassant Mine, Emarese, Aosta Valley, Italy Gressan, Aosta Valley, Italy
Photo: © Y. Verbelen. Antigorite from Gressan, Aosta Valley, Italy
'Apatite'
Localities:	Reported from at least 10 localities in this region.
Photo: © Enrico Bonacina. Apatite from Triolet Glacier, Ferret Valley, Les Grandes Jorasses Massif, Courmayeur, Aosta Valley, Italy
Aragonite
Formula:	CaCO3
Localities:	Reported from at least 10 localities in this region.
Photo: © GiovanniFraccaro. Aragonite from Settarme-Chassant Mine, Emarese, Aosta Valley, Italy
'Ardennite'
Localities:	Prabornaz Mine (ex Praborna Mine), Saint-Marcel, Aosta Valley, Italy Cignana Lake, Valtournanche, Valtournanche Valley, Aosta Valley, Italy Plan Tendre, Breuil-Cervinia, Valtournanche, Valtournanche Valley, Aosta Valley, Italy Chez Botz, Clavalité Valley, Fenis, Aosta Valley, Italy Plateau Rosa Pass, Breuil-Cervinia, Valtournanche, Valtournanche Valley, Aosta Valley, Italy
Photo: Ardennite from Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy
Ardennite-(As)
Formula:	Mn2+4(Al,Mg)6(Si3O10)(SiO4)2(AsO4,VO4)(OH)6
Locality:	Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy
Photo: © GiovanniFraccaro. Ardennite-(As) from Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy
Ardennite-(V)
Formula:	Mn2+4Al4(Mg,Al,Fe3+,Mn3+)2(Si3O10)(SiO4)2(VO4,SiO4)(OH)6
Locality:	Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy
Arfvedsonite
Formula:	[Na][Na2][Fe2+4Fe3+]Si8O22(OH)2
Locality:	Plan d'Albard, Bard, Aosta Valley, Italy
Arseniopleite
Formula:	NaCaMn2+(Mn2+,Mg)2(AsO4)3
Locality:	Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy
Photo: © Cristian B.. Arseniopleite from Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy
Arsenopyrite
Formula:	FeAsS
Localities:	Miage Glacier, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy Arbaz, Challant Saint-Anselme, Ayas Valley, Aosta Valley, Italy Gressoney-la-Trinité, Lys Valley, Aosta Valley, Italy
Photo: © D.Preite. Arsenopyrite from Miage Glacier, Veny Valley, Monte Bianco Massif, Courmayeur, Aosta Valley, Italy
Artinite
Formula:	Mg2(CO3)(OH)2 · 3H2O
Localities:	Reported from at least 6 localities in this region.
Photo: © Rao. Artinite from Montjovet, Aosta Valley, Italy
Augite
Formula:	(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
Locality:	Cogne Mines, Cogne, Cogne Valley, Aosta Valley, Italy
Autunite
Formula:	Ca(UO2)2(PO4)2 · 11H2O
Localities:	Brenva Glacier, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy Mont Fréty, Entreves, Ferret Valley, Les Grandes Jorasses Massif, Courmayeur, Aosta Valley, Italy
Axinite-(Fe)
Formula:	Ca2Fe2+Al2BSi4O15OH
Localities:	Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy La Thuile, Aosta Valley, Italy Brouillard Glacier, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy Breuil-Cervinia, Valtournanche, Valtournanche Valley, Aosta Valley, Italy Miage Glacier, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy
Photo: © D. Preite. Axinite-(Fe) from Miage Glacier, Veny Valley, Monte Bianco Massif, Courmayeur, Aosta Valley, Italy
'Axinite Group'
Locality:	Miage Glacier, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy
Photo: © GiovanniFraccaro. Axinite Group from Miage Glacier, Veny Valley, Monte Bianco Massif, Courmayeur, Aosta Valley, Italy
Azurite
Formula:	Cu3(CO3)2(OH)2
Localities:	Reported from at least 7 localities in this region.
Photo: © Paolo Grosso. Azurite from Bechaz mine, Challant Saint-Anselme, Ayas Valley, Aosta Valley, Italy
Barroisite
Formula:	☐{CaNa}{Mg3Al2}(AlSi7O22)(OH)2
Locality:	Breuil-Cervinia, Valtournanche, Valtournanche Valley, Aosta Valley, Italy
Baryte
Formula:	BaSO4
Localities:	Trou des Romains, Sapin Valley, Courmayeur, Aosta Valley, Italy Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy Triolet Glacier, Ferret Valley, Les Grandes Jorasses Massif, Courmayeur, Aosta Valley, Italy
Bastnäsite-(Ce)
Formula:	(Ce,La)(CO3)F
Locality:	Triolet Glacier, Ferret Valley, Les Grandes Jorasses Massif, Courmayeur, Aosta Valley, Italy
Bavenite
Formula:	Ca4Be2Al2Si9O26(OH)2
Locality:	Freney Glacier, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy
Bazzite ?
Formula:	Be3Sc2(Si6O18)
Locality:	Petit Mont Blanc, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy - erroneously reported
Berthierite
Formula:	FeSb2S4
Locality:	Trou des Romains, Sapin Valley, Courmayeur, Aosta Valley, Italy
Bertrandite
Formula:	Be4(Si2O7)(OH)2
Locality:	Petit Mont Blanc, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy
Beryl
Formula:	Be3Al2(Si6O18)
Localities:	Triolet Glacier, Ferret Valley, Les Grandes Jorasses Massif, Courmayeur, Aosta Valley, Italy Petit Mont Blanc, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy Miage Glacier, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy Velan Mt., Etroubles, Gran San Bernardo Valley, Aosta Valley, Italy
β-Uranophane
Formula:	Ca(UO2)2(HSiO4)2 · 5H2O
Locality:	Brenva Glacier, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy
Birnessite
Formula:	(Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
Localities:	Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy Prabornaz Mine (ex Praborna Mine), Saint-Marcel, Aosta Valley, Italy
Bismuth
Formula:	Bi
Locality:	Brusson Mine, Brusson, Ayas Valley, Aosta Valley, Italy
Bismutite
Formula:	(BiO)2CO3
Locality:	Brusson Mine, Brusson, Ayas Valley, Aosta Valley, Italy
Bornite
Formula:	Cu5FeS4
Localities:	Servette-Chuc Mine, Saint-Marcel, Aosta Valley, Italy Herin mine, Champdepraz, Aosta Valley, Italy Ollomont Mine, Ollomont, Valpelline, Aosta Valley, Italy Champorcher, Champorcher Valley, Aosta Valley, Italy
Boulangerite
Formula:	Pb5Sb4S11
Locality:	Miage Glacier, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy
Photo: © B. Marello. Boulangerite from Miage Glacier, Veny Valley, Monte Bianco Massif, Courmayeur, Aosta Valley, Italy
Bournonite
Formula:	PbCuSbS3
Locality:	Trou des Romains, Sapin Valley, Courmayeur, Aosta Valley, Italy
Brannerite
Formula:	(U4+,REE,Th,Ca)(Ti,Fe3+,Nb)2(O,OH)6
Locality:	Brusson Mine, Brusson, Ayas Valley, Aosta Valley, Italy
Braunite (TL)
Formula:	Mn2+Mn3+6(SiO4)O8
Type Locality:	Prabornaz Mine (ex Praborna Mine), Saint-Marcel, Aosta Valley, Italy
Reference:	Castello P. (1982) - Il giacimento manganesifero di Praborna (St. Marcel - AO) - Rivista Mineralogica Italiana, Fasc. 3, pp. 87-92; Perseil, E. A. (1985): Some characteristics of manganese oxide facies in the deposit at St. Marcel-Praborna-Val d'Aosta, Italy. Miner. Deposita 20, 271-276. (in French)
Localities:	Recorded from at least 2 other localities in this region.
Photo: © GiovanniFraccaro. Braunite from Prabornaz Mine, Saint-Marcel, Aosta Valley, Italy
Brochantite
Formula:	Cu4(SO4)(OH)6
Locality:	Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy
Brookite
Formula:	TiO2
Localities:	Reported from at least 10 localities in this region.
Photo: © Paolo Grosso. Brookite from Triolet Glacier, Ferret Valley, Les Grandes Jorasses Massif, Courmayeur, Aosta Valley, Italy
Brucite
Formula:	Mg(OH)2
Localities:	Settarme-Chassant Mine, Emarese, Aosta Valley, Italy Cogne Mines, Cogne, Cogne Valley, Aosta Valley, Italy
Photo: © Paolo Grosso. Brucite from Settarme-Chassant Mine, Emarese, Aosta Valley, Italy
'Brugnatellite'
Formula:	Mg6Fe3+(CO3)(OH)13 · 4H2O
Localities:	Saint-Vincent, Aosta Valley, Italy Cogne Mines, Cogne, Cogne Valley, Aosta Valley, Italy Petit Monde Tunnel, Montjovet, Aosta Valley, Italy ? (more information)
Calcite
Formula:	CaCO3
Localities:	Reported from at least 14 localities in this region.
Photo: Calcite from Sommarese, Emarese, Aosta Valley, Italy
Calderite
Formula:	(Mn2+,Ca)3(Fe3+,Al)2(SiO4)3
Localities:	Prabornaz Mine (ex Praborna Mine), Saint-Marcel, Aosta Valley, Italy Cignana Lake, Valtournanche, Valtournanche Valley, Aosta Valley, Italy
Celadonite
Formula:	K(Mg,Fe2+)Fe3+(Si4O10)(OH)2
Localities:	Prabornaz Mine (ex Praborna Mine), Saint-Marcel, Aosta Valley, Italy Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy
Celestine
Formula:	SrSO4
Locality:	Miage Glacier, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy
Cerussite
Formula:	PbCO3
Localities:	Trou des Romains, Sapin Valley, Courmayeur, Aosta Valley, Italy Brusson Mine, Brusson, Ayas Valley, Aosta Valley, Italy Bechaz mine, Challant Saint-Anselme, Ayas Valley, Aosta Valley, Italy Miage Glacier, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy Aiguille Noire du Peuterey, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy
Photo: Cerussite from Miage Glacier, Veny Valley, Monte Bianco Massif, Courmayeur, Aosta Valley, Italy
'Chabazite'
Localities:	Miage Glacier, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy Petit Mont Blanc, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy Brouillard Glacier, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy Combal Lake, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy
Photo: © GiovanniFraccaro. Chabazite from Miage Glacier, Veny Valley, Monte Bianco Massif, Courmayeur, Aosta Valley, Italy
Chabazite-Ca
Formula:	(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
Locality:	Lex Blanche Glacier, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy
Chabazite-Na
Formula:	(Na2,K2,Ca,Sr,Mg)2[Al2Si4O12]2 · 12H2O
Locality:	Petit Mont Blanc, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy
Photo: © Simone Citon. Chabazite-Na from Miage Glacier, Veny Valley, Monte Bianco Massif, Courmayeur, Aosta Valley, Italy
Chalcanthite
Formula:	CuSO4 · 5H2O
Locality:	Servette-Chuc Mine, Saint-Marcel, Aosta Valley, Italy
Chalcocite
Formula:	Cu2S
Localities:	Saint-Vincent, Aosta Valley, Italy La Thuile, Aosta Valley, Italy
Chalcopyrite
Formula:	CuFeS2
Localities:	Reported from at least 13 localities in this region.
Chamosite
Formula:	(Fe2+,Mg)5Al(AlSi3O10)(OH)8
Localities:	Triolet Glacier, Ferret Valley, Les Grandes Jorasses Massif, Courmayeur, Aosta Valley, Italy Monte Rosso di Verra, Champoluc, Ayas, Ayas Valley, Aosta Valley, Italy
'Chlorite Group'
Localities:	Reported from at least 9 localities in this region.
Photo: Chlorite Group from Monte Rosso di Verra, Champoluc, Ayas, Ayas Valley, Aosta Valley, Italy
Chloritoid
Formula:	(Fe2+,Mg,Mn2+)Al2(SiO4)O(OH)2
Localities:	Servette-Chuc Mine, Saint-Marcel, Aosta Valley, Italy Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy
Photo: © G.Fraccaro. Chloritoid from Servette-Chuc Mine, Saint-Marcel, Aosta Valley, Italy
Chondrodite
Formula:	(Mg,Fe2+)5(SiO4)2(F,OH)2
Localities:	Cogne Mines, Cogne, Cogne Valley, Aosta Valley, Italy Blu Lake, Champoluc, Ayas, Ayas Valley, Aosta Valley, Italy
Chromite
Formula:	Fe2+Cr3+2O4
Locality:	Plan d'Albard, Bard, Aosta Valley, Italy
Chrysotile
Formula:	Mg3(Si2O5)(OH)4
Localities:	Settarme-Chassant Mine, Emarese, Aosta Valley, Italy Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy Cogne Mines, Cogne, Cogne Valley, Aosta Valley, Italy Montjovet, Aosta Valley, Italy
Clinochlore
Formula:	(Mg,Fe2+)5Al(AlSi3O10)(OH)8
Localities:	Reported from at least 7 localities in this region.
Photo: Clinochlore from Bellecombe, Châtillon, Aosta Valley, Italy
Clinochrysotile
Locality:	Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy
Clinohumite
Formula:	(Mg,Fe2+)9(SiO4)4(F,OH)2
Locality:	Ponte delle Capre, Châtillon, Aosta Valley, Italy
Clinohumite var: Titanclinohumite
Localities:	Settarme-Chassant Mine, Emarese, Aosta Valley, Italy Cogne Mines, Cogne, Cogne Valley, Aosta Valley, Italy Monte Rosso di Verra, Champoluc, Ayas, Ayas Valley, Aosta Valley, Italy
Photo: © GiovanniFraccaro. Titanclinohumite from Monte Rosso di Verra, Champoluc, Ayas, Ayas Valley, Aosta Valley, Italy
Clinozoisite
Formula:	{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Localities:	Reported from at least 8 localities in this region.
Photo: © Tagliabue-Foschi. Clinozoisite from Bellecombe, Châtillon, Aosta Valley, Italy
Coalingite
Formula:	Mg10Fe3+2(OH)24[CO3] · 2H2O
Locality:	Petit Monde Tunnel, Montjovet, Aosta Valley, Italy
Coesite
Formula:	SiO2
Locality:	Cignana Lake, Valtournanche, Valtournanche Valley, Aosta Valley, Italy
Copiapite
Formula:	Fe2+Fe3+4(SO4)6(OH)2 · 20H2O
Locality:	Servette-Chuc Mine, Saint-Marcel, Aosta Valley, Italy
Copper
Formula:	Cu
Localities:	Servette-Chuc Mine, Saint-Marcel, Aosta Valley, Italy Herin mine, Champdepraz, Aosta Valley, Italy La Serva Mine, Bionaz, Valpelline, Aosta Valley, Italy
Photo: © Marco Macchieraldo. Copper from Herin mine, Champdepraz, Aosta Valley, Italy
Cordierite
Formula:	(Mg,Fe)2Al3(AlSi5O18)
Locality:	Gressoney-la-Trinité, Lys Valley, Aosta Valley, Italy
Corundum
Formula:	Al2O3
Locality:	Levaz, Torgnon, Valtournanche Valley, Aosta Valley, Italy
Cosalite
Formula:	Pb2Bi2S5
Locality:	Brusson Mine, Brusson, Ayas Valley, Aosta Valley, Italy
Covellite
Formula:	CuS
Localities:	Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy Gressoney-la-Trinité, Lys Valley, Aosta Valley, Italy
Crichtonite
Formula:	(Sr,La,Ce,Y)(Ti,Fe3+,Mn)21O38
Locality:	Triolet Glacier, Ferret Valley, Les Grandes Jorasses Massif, Courmayeur, Aosta Valley, Italy
Cryptomelane
Formula:	K(Mn4+7Mn3+)O16
Localities:	Prabornaz Mine (ex Praborna Mine), Saint-Marcel, Aosta Valley, Italy Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy
Cuprite
Formula:	Cu2O
Localities:	Herin mine, Champdepraz, Aosta Valley, Italy Servette-Chuc Mine, Saint-Marcel, Aosta Valley, Italy
Photo: © Flavio G. Taricco. Cuprite from Servette-Chuc Mine, Saint-Marcel, Aosta Valley, Italy
Cyanotrichite ?
Formula:	Cu4Al2(SO4)(OH)12 · 2H2O
Locality:	Petit Monde Tunnel, Montjovet, Aosta Valley, Italy - erroneously reported
Danburite
Formula:	CaB2Si2O8
Locality:	Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy
Diopside
Formula:	CaMgSi2O6
Localities:	Reported from at least 13 localities in this region.
Photo: © D. Preite. Diopside from Bellecombe, Châtillon, Aosta Valley, Italy
Diopside var: Schefferite
Formula:	(Ca,Mn)(Mg,Fe,Mn)Si2O6
Locality:	Prabornaz Mine (ex Praborna Mine), Saint-Marcel, Aosta Valley, Italy
Diopside var: Violane
Locality:	Prabornaz Mine (ex Praborna Mine), Saint-Marcel, Aosta Valley, Italy
Photo: Violane from Prabornaz Mine, Saint-Marcel, Aosta Valley, Italy
Djurleite
Formula:	Cu31S16
Locality:	Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy
Dolomite
Formula:	CaMg(CO3)2
Localities:	Reported from at least 8 localities in this region.
Photo: Dolomite from Emarese, Aosta Valley, Italy
Dolomite var: Ferroan Dolomite
Locality:	Brusson Mine, Brusson, Ayas Valley, Aosta Valley, Italy
Dravite
Formula:	Na(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
Localities:	Cignana Lake, Valtournanche, Valtournanche Valley, Aosta Valley, Italy Plateau Rosa Pass, Breuil-Cervinia, Valtournanche, Valtournanche Valley, Aosta Valley, Italy
Photo: Dravite from Plateau Rosa Pass, Breuil-Cervinia, Valtournanche, Valtournanche Valley, Aosta Valley, Italy
Eckermannite
Formula:	NaNa2(Mg4Al}Si8O22(OH)2
Locality:	Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy
Edenite
Formula:	{Na}{Ca2}{Mg5}(AlSi7O22)(OH)2
Locality:	Prabornaz Mine (ex Praborna Mine), Saint-Marcel, Aosta Valley, Italy
Photo: Edenite from Prabornaz Mine, Saint-Marcel, Aosta Valley, Italy
Enargite
Formula:	Cu3AsS4
Locality:	Trou des Romains, Sapin Valley, Courmayeur, Aosta Valley, Italy
Epidote
Formula:	{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Localities:	Reported from at least 16 localities in this region.
Photo: © Chinellato Matteo. Epidote from Bellecombe, Châtillon, Aosta Valley, Italy
Epistilbite
Formula:	CaAl2Si6O16 · 5H2O
Locality:	Miage Glacier, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy
Fergusonite-(Y)
Formula:	YNbO4
Locality:	Triolet Glacier, Ferret Valley, Les Grandes Jorasses Massif, Courmayeur, Aosta Valley, Italy
Photo: Fergusonite-(Y) from Triolet Glacier, Ferret Valley, Les Grandes Jorasses Massif, Courmayeur, Aosta Valley, Italy
Ferri-ghoseite
Formula:	☐[Mn2+Na][Mg4Fe3+]Si8O22(OH)2
Localities:	Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy Prabornaz Mine (ex Praborna Mine), Saint-Marcel, Aosta Valley, Italy Cignana Lake, Valtournanche, Valtournanche Valley, Aosta Valley, Italy
Photo: Ferri-ghoseite from Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy
Ferro-eckermannite
Formula:	NaNa2(Fe2+,4Al)Si8O22(OH)2
Locality:	Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy
Ferro-glaucophane (TL)
Formula:	◻[Na2][Fe2+3Al2]Si8O22(OH)2
Type Locality:	Herin mine, Champdepraz, Aosta Valley, Italy
Reference:	Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007): Minerali del Piemonte e della Valle d'Aosta, Amici del Museo "F. Eusebio" di Alba, Ed., Alba (Cuneo), 617 pp.
Photo: © G.Fraccaro. Ferro-glaucophane from Herin mine, Champdepraz, Aosta Valley, Italy
Fluorapatite
Formula:	Ca5(PO4)3F
Localities:	Prabornaz Mine (ex Praborna Mine), Saint-Marcel, Aosta Valley, Italy Cignana Lake, Valtournanche, Valtournanche Valley, Aosta Valley, Italy Becca di Nona, Champdepraz, Aosta Valley, Italy ? (more information)
Photo: © D.Preite. Fluorapatite from Miage Glacier, Veny Valley, Monte Bianco Massif, Courmayeur, Aosta Valley, Italy
Fluorite
Formula:	CaF2
Localities:	Reported from at least 6 localities in this region.
Photo: Fluorite from Triolet Glacier, Ferret Valley, Les Grandes Jorasses Massif, Courmayeur, Aosta Valley, Italy
Gadolinite-(Y)
Formula:	Y2Fe2+Be2Si2O10
Locality:	Triolet Glacier, Ferret Valley, Les Grandes Jorasses Massif, Courmayeur, Aosta Valley, Italy
Galena
Formula:	PbS
Localities:	Reported from at least 12 localities in this region.
Photo: © Alberto Vaghi. Galena from Miage Glacier, Veny Valley, Monte Bianco Massif, Courmayeur, Aosta Valley, Italy
'Garnet'
Formula:	X3Z2(SiO4)3
Localities:	Monte Rosso di Verra, Champoluc, Ayas, Ayas Valley, Aosta Valley, Italy Iveri, Pont-Saint-Martin, Aosta Valley, Italy
Photo: © Luca Toffolo. Garnet from Herin mine, Champdepraz, Aosta Valley, Italy
Glaucophane
Formula:	◻[Na2][Mg3Al2]Si8O22(OH)2
Reference:	No reference listed
Localities:	Recorded from at least 5 other localities in this region.
Photo: © Jasun McAvoy. Glaucophane from Montjovet, Aosta Valley, Italy
Goethite
Formula:	α-Fe3+O(OH)
Localities:	Petit Mont Blanc, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy Ollomont Mine, Ollomont, Valpelline, Aosta Valley, Italy Aiguille Noire du Peuterey, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy
Photo: Goethite from La Thuile, Aosta Valley, Italy
Gold
Formula:	Au
Localities:	Reported from at least 10 localities in this region.
Photo: © fabreminerals.com. Gold from Brusson Mine, Brusson, Ayas Valley, Aosta Valley, Italy
Graphite
Formula:	C
Localities:	Plan de Raye, Mort Mt., Saint-Rhèmy-en-Bosses, Gran San Bernardo Valley, Aosta Valley, Italy Champorcher, Champorcher Valley, Aosta Valley, Italy
Grossular
Formula:	Ca3Al2(SiO4)3
Localities:	Reported from at least 12 localities in this region.
Photo: © D. Preite - M.C.. Grossular from Bellecombe, Châtillon, Aosta Valley, Italy
Grossular var: Hessonite
Localities:	Reported from at least 8 localities in this region.
Photo: © Enrico Bonacina. Hessonite from Bellecombe, Châtillon, Aosta Valley, Italy
Gypsum
Formula:	CaSO4 · 2H2O
Localities:	Trou des Romains, Sapin Valley, Courmayeur, Aosta Valley, Italy Servette-Chuc Mine, Saint-Marcel, Aosta Valley, Italy
Photo: © Bonifazi Marco. Gypsum from Servette-Chuc Mine, Saint-Marcel, Aosta Valley, Italy
Hausmannite
Formula:	MnMn2O4
Locality:	Prabornaz Mine (ex Praborna Mine), Saint-Marcel, Aosta Valley, Italy
Hematite
Formula:	Fe2O3
Localities:	Reported from at least 9 localities in this region.
Photo: © Paolo Grosso. Hematite from Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy
'Heulandite'
Localities:	Petit Mont Blanc, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy Brouillard Glacier, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy
Photo: © GiovanniFraccaro. Heulandite from Miage Glacier, Veny Valley, Monte Bianco Massif, Courmayeur, Aosta Valley, Italy
Heulandite-Ca
Formula:	(Ca,Na)2-3Al3(Al,Si)2Si13O36 · 12H2O
Localities:	Miage Glacier, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy Lex Blanche Glacier, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy Brenva Glacier, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy Petit Mont Blanc, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy
Photo: © Enrico Bonacina. Heulandite-Ca from Miage Glacier, Veny Valley, Monte Bianco Massif, Courmayeur, Aosta Valley, Italy
'Högbomite'
Formula:	(Mg,Fe)2(Al,Ti)5O10
Locality:	Levaz, Torgnon, Valtournanche Valley, Aosta Valley, Italy
Hollandite
Formula:	Ba(Mn4+6Mn3+2)O16
Locality:	Prabornaz Mine (ex Praborna Mine), Saint-Marcel, Aosta Valley, Italy
'Hornblende'
Locality:	Perloz, Lys Valley, Aosta Valley, Italy
Photo: © . Hornblende from Cogne Valley, Aosta Valley, Italy
Huttonite
Formula:	ThSiO4
Locality:	Plan de Raye, Mort Mt., Saint-Rhèmy-en-Bosses, Gran San Bernardo Valley, Aosta Valley, Italy
'Hyalophane'
Formula:	(K,Ba)[Al(Si,Al)Si2O8]
Locality:	Trou des Romains, Sapin Valley, Courmayeur, Aosta Valley, Italy
Hydromagnesite
Formula:	Mg5(CO3)4(OH)2 · 4H2O
Localities:	Reported from at least 7 localities in this region.
Photo: © Paolo Grosso. Hydromagnesite from Settarme-Chassant Mine, Emarese, Aosta Valley, Italy
Hydroxylapatite
Formula:	Ca5(PO4)3(OH)
Localities:	Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy Triolet Glacier, Ferret Valley, Les Grandes Jorasses Massif, Courmayeur, Aosta Valley, Italy Brenva Glacier, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy Miage Glacier, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy Petit Mont Blanc, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy
Hydroxylclinohumite
Formula:	Mg9(SiO4)4(OH,F)2
Locality:	Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy
Ilmenite
Formula:	Fe2+TiO3
Localities:	Miage Glacier, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy Triolet Glacier, Ferret Valley, Les Grandes Jorasses Massif, Courmayeur, Aosta Valley, Italy Prabornaz Mine (ex Praborna Mine), Saint-Marcel, Aosta Valley, Italy
Jacobsite
Formula:	Mn2+Fe3+2O4
Locality:	Prabornaz Mine (ex Praborna Mine), Saint-Marcel, Aosta Valley, Italy
Jadeite
Formula:	Na(Al,Fe3+)Si2O6
Localities:	Prabornaz Mine (ex Praborna Mine), Saint-Marcel, Aosta Valley, Italy Perloz, Lys Valley, Aosta Valley, Italy Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy
Kainosite-(Y)
Formula:	Ca2(Y,Ce)2(Si4O12)(CO3) · H2O
Localities:	Triolet Glacier, Ferret Valley, Les Grandes Jorasses Massif, Courmayeur, Aosta Valley, Italy Brenva Glacier, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy Miage Glacier, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy
Kasolite
Formula:	Pb(UO2)[SiO4] · H2O
Locality:	Brenva Glacier, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy
'K Feldspar var: Adularia'
Formula:	KAlSi3O8
Localities:	Reported from at least 6 localities in this region.
Photo: © Fabrizio Frattini. Adularia from Miage Glacier, Veny Valley, Monte Bianco Massif, Courmayeur, Aosta Valley, Italy
Kutnohorite
Formula:	Ca(Mn,Mg,Fe)(CO3)2
Localities:	Prabornaz Mine (ex Praborna Mine), Saint-Marcel, Aosta Valley, Italy Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy
Lansfordite
Formula:	MgCO3 · 5H2O
Locality:	Cogne Mines, Cogne, Cogne Valley, Aosta Valley, Italy
Laumontite
Formula:	CaAl2Si4O12 · 4H2O
Locality:	Miage Glacier, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy
Photo: Laumontite from Miage Glacier, Veny Valley, Monte Bianco Massif, Courmayeur, Aosta Valley, Italy
Leucophoenicite
Formula:	Mn2+7(SiO4)3(OH)2
Locality:	Plan Tendre, Breuil-Cervinia, Valtournanche, Valtournanche Valley, Aosta Valley, Italy
'Limonite'
Formula:	FeO(OH) · nH2O
Localities:	Trou des Romains, Sapin Valley, Courmayeur, Aosta Valley, Italy Servette-Chuc Mine, Saint-Marcel, Aosta Valley, Italy Aiguille du Chatelet, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy
Photo: Limonite from La Thuile, Aosta Valley, Italy
Magnesiochloritoid
Formula:	MgAl2(SiO4)O(OH)2
Locality:	Prabornaz Mine (ex Praborna Mine), Saint-Marcel, Aosta Valley, Italy
Photo: Magnesiochloritoid from Prabornaz Mine, Saint-Marcel, Aosta Valley, Italy
Magnesiochromite
Formula:	Mg(Cr,Al,Fe)2O4
Locality:	Petit Monde Tunnel, Montjovet, Aosta Valley, Italy
Magnesio-riebeckite
Formula:	◻{Na2}{Mg3Fe3+2}(Si8O22)(OH)2
Locality:	Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy
Magnesite
Formula:	MgCO3
Localities:	Brusson Mine, Brusson, Ayas Valley, Aosta Valley, Italy Sizan quarry, Challant Saint-Anselme, Ayas Valley, Aosta Valley, Italy
Magnetite
Formula:	Fe2+Fe3+2O4
Localities:	Reported from at least 13 localities in this region.
Photo: © Chinellato Matteo. Magnetite from Bellecombe, Châtillon, Aosta Valley, Italy
Malachite
Formula:	Cu2(CO3)(OH)2
Localities:	Reported from at least 7 localities in this region.
Photo: © Paolo Grosso. Malachite from Bechaz mine, Challant Saint-Anselme, Ayas Valley, Aosta Valley, Italy
Manganberzeliite
Formula:	(Ca,Na)3(Mn2+,Mg)2(AsO4)3
Locality:	Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy
Photo: © Paolo Grosso. Manganberzeliite from Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy
Manganiandrosite-(Ce) (TL)
Formula:	{(Mn2+,Ca)(Ce,REE)}{Mn3+AlMn2+}(Si2O7)(SiO4)O(OH)
Type Locality:	Prabornaz Mine (ex Praborna Mine), Saint-Marcel, Aosta Valley, Italy
Reference:	Cenki-Tok, B., Ragu, A., Armbruster, T., Chopin, C., Medenbach, O. (2006): New Mn- and rare-earth-rich epidote-group minerals in metacherts: manganiandrosite-(Ce) and vanadoandrosite-(Ce). European Journal of Mineralogy 18, 569-582.
Localities:	Recorded from at least 1 other locality in this region.
Manganite
Formula:	Mn3+O(OH)
Locality:	Prabornaz Mine (ex Praborna Mine), Saint-Marcel, Aosta Valley, Italy
Manganocummingtonite
Formula:	☐{Mn2+2}{Mg5}(Si8O22)(OH)2
Locality:	Cignana Lake, Valtournanche, Valtournanche Valley, Aosta Valley, Italy
Melanterite
Formula:	FeSO4 · 7H2O
Localities:	Cogne Mines, Cogne, Cogne Valley, Aosta Valley, Italy Aiguille du Chatelet, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy
Meneghinite ?
Formula:	Pb13CuSb7S24
Locality:	Promise mine, La Thuile, Aosta Valley, Italy - erroneously reported
Microcline
Formula:	KAlSi3O8
Localities:	Prabornaz Mine (ex Praborna Mine), Saint-Marcel, Aosta Valley, Italy Plan d'Albard, Bard, Aosta Valley, Italy
Milarite
Formula:	K2Ca4Al2Be4Si24O60 · H2O
Locality:	Brenva Glacier, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy
Photo: © GiovanniFraccaro. Milarite from Brenva Glacier, Veny Valley, Monte Bianco Massif, Courmayeur, Aosta Valley, Italy
Molybdenite
Formula:	MoS2
Localities:	Triolet Glacier, Ferret Valley, Les Grandes Jorasses Massif, Courmayeur, Aosta Valley, Italy Petit Mont Blanc, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy Fréboudze Glacier, Ferret Valley, Les Grandes Jorasses Massif, Courmayeur, Aosta Valley, Italy Place Moulin Dam, Bionaz, Valpelline, Aosta Valley, Italy
'Monazite'
Localities:	Passo di Verra, Champoluc, Ayas, Ayas Valley, Aosta Valley, Italy Brenva Glacier, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy Miage Glacier, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy Triolet Glacier, Ferret Valley, Les Grandes Jorasses Massif, Courmayeur, Aosta Valley, Italy
Photo: © Alberto Vaghi. Monazite from Brenva Glacier, Veny Valley, Monte Bianco Massif, Courmayeur, Aosta Valley, Italy
Monazite-(Ce)
Formula:	(Ce,La,Nd,Th)(PO4)
Localities:	Reported from at least 9 localities in this region.
Photo: © Paolo Grosso. Monazite-(Ce) from Triolet Glacier, Ferret Valley, Les Grandes Jorasses Massif, Courmayeur, Aosta Valley, Italy
Morenosite
Formula:	NiSO4 · 7H2O
Localities:	Les Perrères Dam, Valtournanche, Valtournanche Valley, Aosta Valley, Italy Notre Dame de la Garde Chapel, Valtournanche, Valtournanche Valley, Aosta Valley, Italy Ayas Valley, Aosta Valley, Italy Settarme-Chassant Mine, Emarese, Aosta Valley, Italy Gouffre de Bousserailles, Valtournanche, Valtournanche Valley, Aosta Valley, Italy
Photo: © Arliguie M. Morenosite from Les Perrères Dam, Valtournanche, Valtournanche Valley, Aosta Valley, Italy
Muscovite
Formula:	KAl2(AlSi3O10)(OH)2
Localities:	Reported from at least 9 localities in this region.
Photo: © aca. Muscovite from Lac Mort, Bionaz, Valpelline, Aosta Valley, Italy
Muscovite var: Alurgite
Formula:	K2(Mg,Al)4-5(Al,Si)8O20(OH)4
Localities:	Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy Prabornaz Mine (ex Praborna Mine), Saint-Marcel, Aosta Valley, Italy
Photo: © Paolo Grosso. Alurgite from Prabornaz Mine, Saint-Marcel, Aosta Valley, Italy
Muscovite var: Fuchsite
Formula:	K(Al,Cr)3Si3O10(OH)2
Locality:	Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy
Photo: © GiovanniFraccaro. Fuchsite from Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy
Muscovite var: Sericite
Locality:	Sizan quarry, Challant Saint-Anselme, Ayas Valley, Aosta Valley, Italy
Neotocite
Formula:	(Mn,Fe,Mg)SiO3 · H2O
Localities:	Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy Prabornaz Mine (ex Praborna Mine), Saint-Marcel, Aosta Valley, Italy
Nesquehonite
Formula:	MgCO3 · 3H2O
Localities:	Cogne Mines, Cogne, Cogne Valley, Aosta Valley, Italy Lillaz, Cogne, Cogne Valley, Aosta Valley, Italy
Nickelhexahydrite
Formula:	(Ni,Mg,Fe)SO4 · 6H2O
Locality:	Gouffre de Bousserailles, Valtournanche, Valtournanche Valley, Aosta Valley, Italy
'Olivine'
Formula:	(Mg,Fe2+)2SiO4
Localities:	Plan d'Albard, Bard, Aosta Valley, Italy Settarme-Chassant Mine, Emarese, Aosta Valley, Italy
Omphacite
Formula:	(Ca,Na)(Mg,Al)Si2O6
Localities:	Prabornaz Mine (ex Praborna Mine), Saint-Marcel, Aosta Valley, Italy Perloz, Lys Valley, Aosta Valley, Italy Iveri, Pont-Saint-Martin, Aosta Valley, Italy
Photo: © . Omphacite from Perloz, Lys Valley, Aosta Valley, Italy
Orpiment
Formula:	As2S3
Locality:	Trou des Romains, Sapin Valley, Courmayeur, Aosta Valley, Italy
Orthobrannerite
Formula:	U4+U6+Ti4O12(OH)2
Locality:	Brusson Mine, Brusson, Ayas Valley, Aosta Valley, Italy
Photo: © Marco Macchieraldo. Orthobrannerite from Brusson Mine, Brusson, Ayas Valley, Aosta Valley, Italy
Orthoclase
Formula:	KAlSi3O8
Locality:	Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy
Paragonite
Formula:	NaAl2(AlSi3O10)(OH)2
Locality:	Perloz, Lys Valley, Aosta Valley, Italy
Pectolite
Formula:	NaCa2(HSi3O9)
Localities:	Saint-Vincent, Aosta Valley, Italy Petit Monde Tunnel, Montjovet, Aosta Valley, Italy
Pentlandite
Formula:	(Fe,Ni)9S8
Locality:	Prabornaz Mine (ex Praborna Mine), Saint-Marcel, Aosta Valley, Italy
Perovskite
Formula:	CaTiO3
Reference:	No reference listed
Localities:	Recorded from at least 3 other localities in this region.
Phenakite
Formula:	Be2SiO4
Locality:	Petit Mont Blanc, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy
'Phengite'
Localities:	Perloz, Lys Valley, Aosta Valley, Italy Prabornaz Mine (ex Praborna Mine), Saint-Marcel, Aosta Valley, Italy
Phlogopite
Formula:	KMg3(AlSi3O10)(OH,F)2
Localities:	Prabornaz Mine (ex Praborna Mine), Saint-Marcel, Aosta Valley, Italy Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy Plan d'Albard, Bard, Aosta Valley, Italy
Piemontite (TL)
Formula:	{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
Type Locality:	Prabornaz Mine (ex Praborna Mine), Saint-Marcel, Aosta Valley, Italy
Reference:	Das Mohs'sche Mineralsystem; 1853 Wien
Localities:	Recorded from at least 6 other localities in this region.
Photo: © Luigi Mattei. Piemontite from Prabornaz Mine, Saint-Marcel, Aosta Valley, Italy
Piemontite-(Sr)
Formula:	{CaSr}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
Locality:	Prabornaz Mine (ex Praborna Mine), Saint-Marcel, Aosta Valley, Italy
Pigeonite ?
Formula:	(Mg,Fe2+,Ca)(Mg,Fe2+)Si2O6
Locality:	Cogne Mines, Cogne, Cogne Valley, Aosta Valley, Italy - erroneously reported
Prehnite
Formula:	Ca2Al2Si3O10(OH)2
Localities:	Reported from at least 8 localities in this region.
Photo: © Marco Macchieraldo. Prehnite from Monte Barbeston, Champdepraz, Aosta Valley, Italy
Priderite
Formula:	K(Ti4+7Fe3+)O16
Locality:	Prabornaz Mine (ex Praborna Mine), Saint-Marcel, Aosta Valley, Italy
Pseudobrookite
Formula:	Fe2TiO5
Locality:	Plan d'Albard, Bard, Aosta Valley, Italy
Pyrite
Formula:	FeS2
Localities:	Reported from at least 20 localities in this region.
Photo: © Antonio Borrelli. Pyrite from Fenillaz lode, Brusson Mine, Brusson, Ayas Valley, Aosta Valley, Italy
Pyroaurite
Formula:	Mg6Fe3+2(OH)16[CO3] · 4H2O
Locality:	Petit Monde Tunnel, Montjovet, Aosta Valley, Italy
Pyrolusite
Formula:	MnO2
Localities:	Prabornaz Mine (ex Praborna Mine), Saint-Marcel, Aosta Valley, Italy Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy Chamolé Lake, Pila, Gressan, Aosta Valley, Italy
Pyromorphite
Formula:	Pb5(PO4)3Cl
Localities:	Trou des Romains, Sapin Valley, Courmayeur, Aosta Valley, Italy Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy
Photo: © GiovanniFraccaro. Pyromorphite from Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy
Pyrophanite
Formula:	Mn2+TiO3
Localities:	Prabornaz Mine (ex Praborna Mine), Saint-Marcel, Aosta Valley, Italy Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy
Photo: © Paolo Grosso. Pyrophanite from Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy
Pyroxmangite
Formula:	MnSiO3
Locality:	Prabornaz Mine (ex Praborna Mine), Saint-Marcel, Aosta Valley, Italy
Pyrrhotite
Formula:	Fe1-xS (x = 0 to 0.17)
Localities:	Brusson Mine, Brusson, Ayas Valley, Aosta Valley, Italy Bechaz mine, Challant Saint-Anselme, Ayas Valley, Aosta Valley, Italy Miage Glacier, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy Passo di Verra, Champoluc, Ayas, Ayas Valley, Aosta Valley, Italy
Quartz
Formula:	SiO2
Localities:	Reported from at least 38 localities in this region.
Photo: © G.Fraccaro. Quartz from Miage Glacier, Veny Valley, Monte Bianco Massif, Courmayeur, Aosta Valley, Italy
Quartz var: Amethyst
Formula:	SiO2
Locality:	Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy
Quartz var: Smoky Quartz
Formula:	SiO2
Localities:	Reported from at least 6 localities in this region.
Photo: © Marco Barsanti. Smoky Quartz from Miage Glacier, Veny Valley, Monte Bianco Massif, Courmayeur, Aosta Valley, Italy
Ranciéite
Formula:	(Ca,Mn)Mn4O9 · 3H2O
Locality:	Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy
Realgar
Formula:	As4S4
Locality:	Trou des Romains, Sapin Valley, Courmayeur, Aosta Valley, Italy
Retgersite
Formula:	NiSO4 · 6H2O
Localities:	Les Perrères Dam, Valtournanche, Valtournanche Valley, Aosta Valley, Italy Gouffre de Bousserailles, Valtournanche, Valtournanche Valley, Aosta Valley, Italy
Photo: © Arliguie M. Retgersite from Les Perrères Dam, Valtournanche, Valtournanche Valley, Aosta Valley, Italy
Rhodochrosite
Formula:	MnCO3
Localities:	Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy Prabornaz Mine (ex Praborna Mine), Saint-Marcel, Aosta Valley, Italy
Photo: © G.Fraccaro. Rhodochrosite from Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy
Rhodonite
Formula:	MnSiO3
Localities:	Prabornaz Mine (ex Praborna Mine), Saint-Marcel, Aosta Valley, Italy Chamolé Lake, Pila, Gressan, Aosta Valley, Italy
Photo: © GiovanniFraccaro. Rhodonite from Prabornaz Mine, Saint-Marcel, Aosta Valley, Italy
Richterite
Formula:	{Na}{CaNa}{Mg5}(Si8O22)(OH)2
Localities:	Prabornaz Mine (ex Praborna Mine), Saint-Marcel, Aosta Valley, Italy Plan d'Albard, Bard, Aosta Valley, Italy Motta di Pletè, Breuil-Cervinia, Valtournanche, Valtournanche Valley, Aosta Valley, Italy
Photo: © GiovanniFraccaro. Richterite from Prabornaz Mine, Saint-Marcel, Aosta Valley, Italy
Riebeckite
Formula:	◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2
Localities:	Plan d'Albard, Bard, Aosta Valley, Italy Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy
'Roméite Group' (TL)
Type Locality:	Prabornaz Mine (ex Praborna Mine), Saint-Marcel, Aosta Valley, Italy
Description:	Occurs with epidote and manganese oxides.
Reference:	Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 1021; Brugger, J., Gieré, R., Graeser, S., and Meisser, N. (1997): Contributions to Mineralogy and Petrology 127, 136-146.
Photo: © Paolo Grosso. Roméite Group from Prabornaz Mine, Saint-Marcel, Aosta Valley, Italy
Rutile
Formula:	TiO2
Localities:	Reported from at least 13 localities in this region.
Photo: © Paolo Grosso. Rutile from Petit Mont Blanc, Veny Valley, Monte Bianco Massif, Courmayeur, Aosta Valley, Italy
'Sagenite'
Locality:	Miage Glacier, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy
Photo: © Alberto Vaghi. Sagenite from Miage Glacier, Veny Valley, Monte Bianco Massif, Courmayeur, Aosta Valley, Italy
Saponite
Formula:	Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
Locality:	Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy
Sarkinite
Formula:	Mn2+2(AsO4)(OH)
Locality:	Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy
Scheelite
Formula:	Ca(WO4)
Localities:	Miage Glacier, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy Sache Mine, Challant Saint-Victor, Ayas Valley, Aosta Valley, Italy Servette-Chuc Mine, Saint-Marcel, Aosta Valley, Italy Brusson Mine, Brusson, Ayas Valley, Aosta Valley, Italy
Scolecite
Formula:	CaAl2Si3O10 · 3H2O
Localities:	Miage Glacier, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy Tzere Valley, Champoluc, Ayas, Ayas Valley, Aosta Valley, Italy Gressoney-la-Trinité, Lys Valley, Aosta Valley, Italy Monte Barbeston, Champdepraz, Aosta Valley, Italy
Photo: © GiovanniFraccaro. Scolecite from Miage Glacier, Veny Valley, Monte Bianco Massif, Courmayeur, Aosta Valley, Italy
Siderite
Formula:	FeCO3
Localities:	Reported from at least 7 localities in this region.
Photo: © . Siderite from Brenva Glacier, Veny Valley, Monte Bianco Massif, Courmayeur, Aosta Valley, Italy
Slavíkite
Formula:	(H3O+)3Mg6Fe15(SO4)21(OH)18 · 99H2O
Locality:	Servette-Chuc Mine, Saint-Marcel, Aosta Valley, Italy
Spessartine
Formula:	Mn2+3Al2(SiO4)3
Localities:	Reported from at least 7 localities in this region.
Photo: © GiovanniFraccaro. Spessartine from Prabornaz Mine, Saint-Marcel, Aosta Valley, Italy
Sphalerite
Formula:	ZnS
Localities:	Reported from at least 8 localities in this region.
Spinel
Formula:	MgAl2O4
Locality:	Levaz, Torgnon, Valtournanche Valley, Aosta Valley, Italy
Stibnite
Formula:	Sb2S3
Localities:	Promise mine, La Thuile, Aosta Valley, Italy Brusson Mine, Brusson, Ayas Valley, Aosta Valley, Italy Gressoney-la-Trinité, Lys Valley, Aosta Valley, Italy Indren Glacier, Gressoney-la-Trinité, Lys Valley, Aosta Valley, Italy
'Stilbite'
Localities:	Miage Glacier, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy Monte Barbeston, Champdepraz, Aosta Valley, Italy Brouillard Glacier, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy
Photo: © GiovanniFraccaro. Stilbite from Miage Glacier, Veny Valley, Monte Bianco Massif, Courmayeur, Aosta Valley, Italy
Stilpnomelane
Formula:	(K,Ca,Na)(Fe2+,Mg,Al,Fe3+)8(Si,Al)12(O,OH)36 · nH2O
Locality:	Parc Mt., La Thuile, Aosta Valley, Italy
Strontiomelane (TL)
Formula:	Sr(Mn4+6Mn3+2)O16
Type Locality:	Prabornaz Mine (ex Praborna Mine), Saint-Marcel, Aosta Valley, Italy
Reference:	N. Meisser et al.: Canadian Mineralogist 37:673-678 (1999)
Sulphur
Formula:	S8
Localities:	Trou des Romains, Sapin Valley, Courmayeur, Aosta Valley, Italy Triolet Glacier, Ferret Valley, Les Grandes Jorasses Massif, Courmayeur, Aosta Valley, Italy
Sursassite
Formula:	Mn2+2Al3(Si2O7)(SiO4)(OH)3
Locality:	Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy
Synchysite-(Ce)
Formula:	Ca(Ce,La)(CO3)2F
Localities:	Triolet Glacier, Ferret Valley, Les Grandes Jorasses Massif, Courmayeur, Aosta Valley, Italy Miage Glacier, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy
Photo: © D. Preite - M.C.. Synchysite-(Ce) from Miage Glacier, Veny Valley, Monte Bianco Massif, Courmayeur, Aosta Valley, Italy
'Synchysite Group'
Locality:	Triolet Glacier, Ferret Valley, Les Grandes Jorasses Massif, Courmayeur, Aosta Valley, Italy
Photo: © Fontana Gianluca. Synchysite Group from Triolet Glacier, Ferret Valley, Les Grandes Jorasses Massif, Courmayeur, Aosta Valley, Italy
Synchysite-(Nd)
Formula:	Ca(Nd,Y,Gd)(CO3)2F
Locality:	Triolet Glacier, Ferret Valley, Les Grandes Jorasses Massif, Courmayeur, Aosta Valley, Italy
Talc
Formula:	Mg3(Si4O10)(OH)2
Localities:	Prabornaz Mine (ex Praborna Mine), Saint-Marcel, Aosta Valley, Italy Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy Plan d'Albard, Bard, Aosta Valley, Italy Settarme-Chassant Mine, Emarese, Aosta Valley, Italy
Tephroite
Formula:	Mn2+2SiO4
Localities:	Prabornaz Mine (ex Praborna Mine), Saint-Marcel, Aosta Valley, Italy Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy
Tetrahedrite
Formula:	Cu6[Cu4(Fe,Zn)2]Sb4S13
Localities:	Trou des Romains, Sapin Valley, Courmayeur, Aosta Valley, Italy Brusson Mine, Brusson, Ayas Valley, Aosta Valley, Italy Bechaz mine, Challant Saint-Anselme, Ayas Valley, Aosta Valley, Italy
Thomsonite-Ca
Formula:	NaCa2[Al5Si5O20] · 6H2O
Localities:	Saint-Vincent, Aosta Valley, Italy Petit Monde Tunnel, Montjovet, Aosta Valley, Italy
Thorianite
Formula:	ThO2
Locality:	Triolet Glacier, Ferret Valley, Les Grandes Jorasses Massif, Courmayeur, Aosta Valley, Italy
Thorite
Formula:	(Th,U)SiO4
Localities:	Triolet Glacier, Ferret Valley, Les Grandes Jorasses Massif, Courmayeur, Aosta Valley, Italy Punta Helbronner, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy
Thortveitite
Formula:	(Sc,Y)2Si2O7
Locality:	Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy
Photo: © GiovanniFraccaro. Thortveitite from Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy
Tilasite
Formula:	CaMg(AsO4)F
Locality:	Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy
Tiragalloite
Formula:	Mn2+4(HAsSi3O13)
Locality:	Prabornaz Mine (ex Praborna Mine), Saint-Marcel, Aosta Valley, Italy
Titanite
Formula:	CaTi(SiO4)O
Localities:	Reported from at least 14 localities in this region.
Photo: © Frank K. Mazdab. Titanite from Prabornaz Mine, Saint-Marcel, Aosta Valley, Italy
Titanite var: Greenovite
Locality:	Prabornaz Mine (ex Praborna Mine), Saint-Marcel, Aosta Valley, Italy
Photo: © GiovanniFraccaro. Greenovite from Prabornaz Mine, Saint-Marcel, Aosta Valley, Italy
Todorokite
Formula:	(Ca,K,Na,Mg,Ba,Mn)(Mn,Mg,Al)6O12 · 3H2O
Localities:	Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy Prabornaz Mine (ex Praborna Mine), Saint-Marcel, Aosta Valley, Italy
Tremolite
Formula:	☐{Ca2}{Mg5}(Si8O22)(OH)2
Localities:	Prabornaz Mine (ex Praborna Mine), Saint-Marcel, Aosta Valley, Italy Settarme-Chassant Mine, Emarese, Aosta Valley, Italy Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy
Photo: © Rui Nunes 2006. Tremolite from Settarme-Chassant Mine, Emarese, Aosta Valley, Italy
'UM2005-02-AsO:AlHPScSi'
Formula:	ScAsO4 · 2H2O
Locality:	Varenche Mine, Saint-Barthélemy, Nus, Aosta Valley, Italy
Uraninite
Formula:	UO2
Localities:	Brenva Glacier, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy Mont Fréty, Entreves, Ferret Valley, Les Grandes Jorasses Massif, Courmayeur, Aosta Valley, Italy
Uranophane
Formula:	Ca(UO2)2[HSiO4]2 · 5H2O
Localities:	Toula Glacier, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy Mont Fréty, Entreves, Ferret Valley, Les Grandes Jorasses Massif, Courmayeur, Aosta Valley, Italy
Uvarovite
Formula:	Ca3Cr2(SiO4)3
Localities:	Prabornaz Mine (ex Praborna Mine), Saint-Marcel, Aosta Valley, Italy Saint-Vincent, Aosta Valley, Italy
Photo: © Paolo Grosso. Uvarovite from Prabornaz Mine, Saint-Marcel, Aosta Valley, Italy
Vesuvianite
Formula:	(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
Localities:	Reported from at least 10 localities in this region.
Photo: © Chinellato Matteo. Vesuvianite from Bellecombe, Châtillon, Aosta Valley, Italy
Violarite
Formula:	Fe2+Ni3+2S4
Locality:	Prabornaz Mine (ex Praborna Mine), Saint-Marcel, Aosta Valley, Italy
Winchite
Formula:	☐{CaNa}{Mg4Al}(Si8O22)(OH)2
Locality:	Prabornaz Mine (ex Praborna Mine), Saint-Marcel, Aosta Valley, Italy
Photo: © . Winchite from Prabornaz Mine, Saint-Marcel, Aosta Valley, Italy
Wollastonite
Formula:	CaSiO3
Localities:	Bellecombe, Châtillon, Aosta Valley, Italy Cogne Mines, Cogne, Cogne Valley, Aosta Valley, Italy
Woodwardite
Formula:	Cu1-xAlx(OH)2[SO4]x/2 · nH2O
Locality:	Servette-Chuc Mine, Saint-Marcel, Aosta Valley, Italy
Photo: Woodwardite from Servette-Chuc Mine, Saint-Marcel, Aosta Valley, Italy
Wulfenite
Formula:	Pb(MoO4)
Localities:	Triolet Glacier, Ferret Valley, Les Grandes Jorasses Massif, Courmayeur, Aosta Valley, Italy Miage Glacier, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy
Photo: © Roberto Bosi. Wulfenite from Miage Glacier, Veny Valley, Monte Bianco Massif, Courmayeur, Aosta Valley, Italy
Xenotime-(Y)
Formula:	Y(PO4)
Localities:	Miage Glacier, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy Triolet Glacier, Ferret Valley, Les Grandes Jorasses Massif, Courmayeur, Aosta Valley, Italy Cignana Lake, Valtournanche, Valtournanche Valley, Aosta Valley, Italy Combal Lake, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley, Italy
Photo: © D. Prite. Xenotime-(Y) from Miage Glacier, Veny Valley, Monte Bianco Massif, Courmayeur, Aosta Valley, Italy
'Zaratite'
Formula:	Ni3(CO3)(OH)4 · 4H2O
Locality:	Lillaz, Cogne, Cogne Valley, Aosta Valley, Italy
Photo: © Simone Citon. Zaratite from Lillaz, Cogne, Cogne Valley, Aosta Valley, Italy
Zircon
Formula:	ZrSiO4
Localities:	Reported from at least 7 localities in this region.
Photo: © G.Fraccaro. Zircon from Lex Blanche Glacier, Veny Valley, Monte Bianco Massif, Courmayeur, Aosta Valley, Italy
Zoisite
Formula:	{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Locality:	Iveri, Pont-Saint-Martin, Aosta Valley, Italy

250 entries listed. 211 valid minerals. 5 type localities (valid minerals). 1 type locality (other).

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