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Bec di Nona (Becca di Nona; Bec-de-Nona; Lac de Leser - Bec-de-Nona area), Champdepraz, Aosta Valley, Italyi
Regional Level Types
Bec di Nona (Becca di Nona; Bec-de-Nona; Lac de Leser - Bec-de-Nona area)Mountain
ChampdeprazCommune
Aosta ValleyAutonomous Region
ItalyCountry

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Key
Locality type:
Other Languages:
French:
Bec-de-Nona (aire du Lac de Leser - Bec-de-Nona), Champdepraz, Vallée d'Aoste, Italie
Italian:
Bec di Nona (Becca di Nona; Bec-de-Nona; area del Lago di Leser - Bec di Nona; area del Lac de Leser - Bec-de-Nona), Champdepraz, Valle d'Aosta, Italia


Rodingite outcrops and loose blocks along the western slope of Bec di Nona/Bec-de-Nona (2331 m), in the area around Lac de Leser, and in the cliffy area between Chalamy stream and Leser Damon.

Vesuvianite-rich rodingite dykes, yellow-green in colour, embedded in serpentinite crop out along the western slope of Bec di Nona/Bec-de-Nona. They consist of vesuvianite (50-95%), chlorite (5-45%) ± diopside (up to 15%), and garnet. Garnet is generally classifiable as grossular (grossular content > 86%) and chlorite as clinochlore.

Some rodingite dykes, pink to reddish to brown in colour, embedded in serpentinite crop out near Lac de Leser. They mainly consist of garnet (up to 80%) and chlorite (20-50 %) with a variable amount of vesuvianite (0-50%), diopside (0-30%), spinel group minerals (prevalent magnetite, chromite, chromite-hercynite series) and rare titanite, epidote, clinozoisite, allanite-(Ce), and ilmenite; the chlorite rim consists of clorite (90-95%) ± garnet, and magnetite. Garnet is mainly grossular; a Cr-rich garnet on the rims of chromite, chromite-hercynite, and Ca-Fe garnet is locally observed.

Small rodingite dykes consisting of main vesuvianite and garnet occur in the cliffy area between Chalamy stream and Leser Damon.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


13 valid minerals.

Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Allanite-(Ce)
Formula: {CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Reference: Panseri, M., Fontana, E., and Tartarotti, P. (2008) Evolution of rodingitic dykes: metasomatism and metamor-phism in the Mount Avic serpentines (Alpine ophiolites, Southern Aosta Valley). Ofioliti, 33, 2, 165-185; Castello, P., and Paganone, M. (2016) Minerali, miniere e cave del Parco Naturale Mont Avic (Comuni di Champdepraz e Champorcher - Valle d’Aosta - Alpi Occidentali). Revue Valdôtaine d'Histoire Naturelle, 70, 7-56.
Chromite
Formula: Fe2+Cr3+2O4
Reference: Panseri, M., Fontana, E., and Tartarotti, P. (2008) Evolution of rodingitic dykes: metasomatism and metamor-phism in the Mount Avic serpentines (Alpine ophiolites, Southern Aosta Valley). Ofioliti, 33, 2, 165-185; Castello, P., and Paganone, M. (2016) Minerali, miniere e cave del Parco Naturale Mont Avic (Comuni di Champdepraz e Champorcher - Valle d’Aosta - Alpi Occidentali). Revue Valdôtaine d'Histoire Naturelle, 70, 7-56.
'Chromite-Hercynite Series'
Reference: Panseri, M., Fontana, E., and Tartarotti, P. (2008) Evolution of rodingitic dykes: metasomatism and metamor-phism in the Mount Avic serpentines (Alpine ophiolites, Southern Aosta Valley). Ofioliti, 33, 2, 165-185; Castello, P., and Paganone, M. (2016) Minerali, miniere e cave del Parco Naturale Mont Avic (Comuni di Champdepraz e Champorcher - Valle d’Aosta - Alpi Occidentali). Revue Valdôtaine d'Histoire Naturelle, 70, 7-56.
Clinochlore
Formula: Mg5Al(AlSi3O10)(OH)8
Reference: Panseri, M., Fontana, E., and Tartarotti, P. (2008) Evolution of rodingitic dykes: metasomatism and metamor-phism in the Mount Avic serpentines (Alpine ophiolites, Southern Aosta Valley). Ofioliti, 33, 2, 165-185; Castello, P., and Paganone, M. (2016) Minerali, miniere e cave del Parco Naturale Mont Avic (Comuni di Champdepraz e Champorcher - Valle d’Aosta - Alpi Occidentali). Revue Valdôtaine d'Histoire Naturelle, 70, 7-56.
Clinozoisite
Formula: {Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Reference: Panseri, M., Fontana, E., and Tartarotti, P. (2008) Evolution of rodingitic dykes: metasomatism and metamor-phism in the Mount Avic serpentines (Alpine ophiolites, Southern Aosta Valley). Ofioliti, 33, 2, 165-185; Castello, P., and Paganone, M. (2016) Minerali, miniere e cave del Parco Naturale Mont Avic (Comuni di Champdepraz e Champorcher - Valle d’Aosta - Alpi Occidentali). Revue Valdôtaine d'Histoire Naturelle, 70, 7-56.
Diopside
Formula: CaMgSi2O6
Reference: Panseri, M., Fontana, E., and Tartarotti, P. (2008) Evolution of rodingitic dykes: metasomatism and metamor-phism in the Mount Avic serpentines (Alpine ophiolites, Southern Aosta Valley). Ofioliti, 33, 2, 165-185; Castello, P., and Paganone, M. (2016) Minerali, miniere e cave del Parco Naturale Mont Avic (Comuni di Champdepraz e Champorcher - Valle d’Aosta - Alpi Occidentali). Revue Valdôtaine d'Histoire Naturelle, 70, 7-56.
Epidote
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Reference: Panseri, M., Fontana, E., and Tartarotti, P. (2008) Evolution of rodingitic dykes: metasomatism and metamor-phism in the Mount Avic serpentines (Alpine ophiolites, Southern Aosta Valley). Ofioliti, 33, 2, 165-185; Castello, P., and Paganone, M. (2016) Minerali, miniere e cave del Parco Naturale Mont Avic (Comuni di Champdepraz e Champorcher - Valle d’Aosta - Alpi Occidentali). Revue Valdôtaine d'Histoire Naturelle, 70, 7-56.
Fluorapatite ?
Formula: Ca5(PO4)3F
Reference: Giuseppe Agozzino specimens
Grossular
Formula: Ca3Al2(SiO4)3
Description: colorless!
Reference: Giuseppe Agozzino specimens; Panseri, M., Fontana, E., and Tartarotti, P. (2008) Evolution of rodingitic dykes: metasomatism and metamor-phism in the Mount Avic serpentines (Alpine ophiolites, Southern Aosta Valley). Ofioliti, 33, 2, 165-185; Castello, P., and Paganone, M. (2016) Minerali, miniere e cave del Parco Naturale Mont Avic (Comuni di Champdepraz e Champorcher - Valle d’Aosta - Alpi Occidentali). Revue Valdôtaine d'Histoire Naturelle, 70, 7-56.
Ilmenite
Formula: Fe2+TiO3
Reference: Panseri, M., Fontana, E., and Tartarotti, P. (2008) Evolution of rodingitic dykes: metasomatism and metamor-phism in the Mount Avic serpentines (Alpine ophiolites, Southern Aosta Valley). Ofioliti, 33, 2, 165-185; Castello, P., and Paganone, M. (2016) Minerali, miniere e cave del Parco Naturale Mont Avic (Comuni di Champdepraz e Champorcher - Valle d’Aosta - Alpi Occidentali). Revue Valdôtaine d'Histoire Naturelle, 70, 7-56.
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Panseri, M., Fontana, E., and Tartarotti, P. (2008) Evolution of rodingitic dykes: metasomatism and metamor-phism in the Mount Avic serpentines (Alpine ophiolites, Southern Aosta Valley). Ofioliti, 33, 2, 165-185; Castello, P., and Paganone, M. (2016) Minerali, miniere e cave del Parco Naturale Mont Avic (Comuni di Champdepraz e Champorcher - Valle d’Aosta - Alpi Occidentali). Revue Valdôtaine d'Histoire Naturelle, 70, 7-56.
Perovskite
Formula: CaTiO3
Reference: Piccoli, G.C., Maletto, G., Bosio, P., and Lombardo, B. (2007) Minerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo "F. Eusebio" di Alba, L'Artigiana Srl - Azienda Grafica, Alba (Cuneo), 607 pp.
Titanite
Formula: CaTi(SiO4)O
Reference: Panseri, M., Fontana, E., and Tartarotti, P. (2008) Evolution of rodingitic dykes: metasomatism and metamor-phism in the Mount Avic serpentines (Alpine ophiolites, Southern Aosta Valley). Ofioliti, 33, 2, 165-185; Castello, P., and Paganone, M. (2016) Minerali, miniere e cave del Parco Naturale Mont Avic (Comuni di Champdepraz e Champorcher - Valle d’Aosta - Alpi Occidentali). Revue Valdôtaine d'Histoire Naturelle, 70, 7-56.
Vesuvianite
Formula: Ca19Fe3+Al4(Al6Mg2)(☐4)☐[Si2O7]4[(SiO4)10]O(OH)9
Reference: Panseri, M., Fontana, E., and Tartarotti, P. (2008) Evolution of rodingitic dykes: metasomatism and metamor-phism in the Mount Avic serpentines (Alpine ophiolites, Southern Aosta Valley). Ofioliti, 33, 2, 165-185; Castello, P., and Paganone, M. (2016) Minerali, miniere e cave del Parco Naturale Mont Avic (Comuni di Champdepraz e Champorcher - Valle d’Aosta - Alpi Occidentali). Revue Valdôtaine d'Histoire Naturelle, 70, 7-56.

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Chromite4.BB.05Fe2+Cr3+2O4
Ilmenite4.CB.05Fe2+TiO3
Magnetite4.BB.05Fe2+Fe3+2O4
Perovskite4.CC.30CaTiO3
Group 8 - Phosphates, Arsenates and Vanadates
Fluorapatite ?8.BN.05Ca5(PO4)3F
Group 9 - Silicates
Allanite-(Ce)9.BG.05b{CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Clinochlore9.EC.55Mg5Al(AlSi3O10)(OH)8
Clinozoisite9.BG.05a{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Diopside9.DA.15CaMgSi2O6
Epidote9.BG.05a{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Grossular9.AD.25Ca3Al2(SiO4)3
Titanite9.AG.15CaTi(SiO4)O
Vesuvianite9.BG.35Ca19Fe3+Al4(Al6Mg2)(☐4)☐[Si2O7]4[(SiO4)10]O(OH)9
Unclassified Minerals, Rocks, etc.
'Chromite-Hercynite Series'-

List of minerals arranged by Dana 8th Edition classification

Group 4 - SIMPLE OXIDES
A2X3
Ilmenite4.3.5.1Fe2+TiO3
Perovskite4.3.3.1CaTiO3
Group 7 - MULTIPLE OXIDES
AB2X4
Chromite7.2.3.3Fe2+Cr3+2O4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
A5(XO4)3Zq
Fluorapatite ?41.8.1.1Ca5(PO4)3F
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Grossular51.4.3b.2Ca3Al2(SiO4)3
Group 52 - NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] and/or >[6] coordination
Titanite52.4.3.1CaTi(SiO4)O
Group 58 - SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups
Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [6] and higher coordination; single and double groups (n = 1, 2)
Allanite-(Ce)58.2.1a.1{CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Clinozoisite58.2.1a.4{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Epidote58.2.1a.7{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Vesuvianite58.2.4.1Ca19Fe3+Al4(Al6Mg2)(☐4)☐[Si2O7]4[(SiO4)10]O(OH)9
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Diopside65.1.3a.1CaMgSi2O6
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings interlayered 1:1, 2:1, and octahedra
Clinochlore71.4.1.4Mg5Al(AlSi3O10)(OH)8
Unclassified Minerals, Mixtures, etc.
'Chromite-Hercynite Series'-

List of minerals for each chemical element

HHydrogen
H VesuvianiteCa19Fe3+Al4(Al6Mg2)(☐4)☐[Si2O7]4[(SiO4)10]O(OH)9
H ClinochloreMg5Al(AlSi3O10)(OH)8
H Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
H Clinozoisite{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
H Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
OOxygen
O GrossularCa3Al2(SiO4)3
O VesuvianiteCa19Fe3+Al4(Al6Mg2)(☐4)☐[Si2O7]4[(SiO4)10]O(OH)9
O ClinochloreMg5Al(AlSi3O10)(OH)8
O DiopsideCaMgSi2O6
O MagnetiteFe2+Fe23+O4
O ChromiteFe2+Cr23+O4
O TitaniteCaTi(SiO4)O
O Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
O Clinozoisite{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
O Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
O IlmeniteFe2+TiO3
O PerovskiteCaTiO3
O FluorapatiteCa5(PO4)3F
FFluorine
F FluorapatiteCa5(PO4)3F
MgMagnesium
Mg VesuvianiteCa19Fe3+Al4(Al6Mg2)(☐4)☐[Si2O7]4[(SiO4)10]O(OH)9
Mg ClinochloreMg5Al(AlSi3O10)(OH)8
Mg DiopsideCaMgSi2O6
AlAluminium
Al GrossularCa3Al2(SiO4)3
Al VesuvianiteCa19Fe3+Al4(Al6Mg2)(☐4)☐[Si2O7]4[(SiO4)10]O(OH)9
Al ClinochloreMg5Al(AlSi3O10)(OH)8
Al Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Al Clinozoisite{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Al Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
SiSilicon
Si GrossularCa3Al2(SiO4)3
Si VesuvianiteCa19Fe3+Al4(Al6Mg2)(☐4)☐[Si2O7]4[(SiO4)10]O(OH)9
Si ClinochloreMg5Al(AlSi3O10)(OH)8
Si DiopsideCaMgSi2O6
Si TitaniteCaTi(SiO4)O
Si Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Si Clinozoisite{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Si Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
PPhosphorus
P FluorapatiteCa5(PO4)3F
CaCalcium
Ca GrossularCa3Al2(SiO4)3
Ca VesuvianiteCa19Fe3+Al4(Al6Mg2)(☐4)☐[Si2O7]4[(SiO4)10]O(OH)9
Ca DiopsideCaMgSi2O6
Ca TitaniteCaTi(SiO4)O
Ca Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Ca Clinozoisite{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Ca Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Ca PerovskiteCaTiO3
Ca FluorapatiteCa5(PO4)3F
TiTitanium
Ti TitaniteCaTi(SiO4)O
Ti IlmeniteFe2+TiO3
Ti PerovskiteCaTiO3
CrChromium
Cr ChromiteFe2+Cr23+O4
FeIron
Fe VesuvianiteCa19Fe3+Al4(Al6Mg2)(☐4)☐[Si2O7]4[(SiO4)10]O(OH)9
Fe MagnetiteFe2+Fe23+O4
Fe ChromiteFe2+Cr23+O4
Fe Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Fe Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Fe IlmeniteFe2+TiO3
CeCerium
Ce Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Piccoli, G.C., Maletto, G., Bosio, P., and Lombardo, B. (2007) Minerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo "F. Eusebio" di Alba, L'Artigiana Srl - Azienda Grafica, Alba (Cuneo), 607 pp.
Panseri, M., Fontana, E., and Tartarotti, P. (2008) Evolution of rodingitic dykes: metasomatism and metamor-phism in the Mount Avic serpentines (Alpine ophiolites, Southern Aosta Valley). Ofioliti, 33, 2, 165-185.
Castello, P., and Paganone, M. (2016) Minerali, miniere e cave del Parco Naturale Mont Avic (Comuni di Champdepraz e Champorcher - Valle d’Aosta - Alpi Occidentali). Revue Valdôtaine d'Histoire Naturelle, 70, 7-56.


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