Mindat Locality ID:
302433
Long-form identifier:
mindat:1:2:302433:4
Italian:
Val Leggia, Leggia, Grono, Regione Moesa, Grigioni, Svizzera
Lombard:
Val Lègia, Lègia, Gron, Region Moesa, Canton Grisun, Svizera
LCT and NYF pegmatites that are part of the so-called Bodengo pegmatite area, a large region including the upper portions of a series of valleys (
Leggia and
Cama valleys, Moesa, Grisons, Switzerland;
Bodengo,
Soè and
Garzelli valleys, Sondrio Province, Lombardy, Italy;
Dosso and
Darengo valleys, Como Province, Lombardy, Italy) located between the Mesolcina (west) and Mera (east) valleys, Southern Steep Belt of the Central Alps.
The two main LCT pegmatite bodies in Leggia Valley are known as
Pizzo Paglia pegmatite dyke (2385 m a.s.l.; VLGa in Guastoni et al., 2014) and
Colonello pegmatite dyke (2160 m a.s.l.; VLGb in Guastoni et al., 2014). They are characterised respectively by the following mineral assemblage: K feldspar, albite, quartz, muscovite, biotite, beryl, schorl, almandine-spessartine garnets (core
Alm58Sps41Pyr1 to rim
Alm73Sps23Pyr3), zircon, K feldspar, albite, albite var. cleavelandite, quartz, muscovite, beryl, schorl, almandine-spessartine garnets, wodginite, zircon.
A NYF pegmatite body outcrops at an intermadiate elevation between the previous ones (VLGm in Guastoni et al., 2014). It is characterised by the presence of K feldspar, albite, quartz, aeschynite-(Y), biotite, columbite-(Fe), euxenite-(Y), monazite-(Ce), spessartine-almandine garnets (core
Sps65Alm29Pyr4 to rim
Sps51Alm40Py5), zircon.
Select Mineral List Type
StandardDetailedGalleryStrunzChemical ElementsMineral List
Mineral list contains entries from the region specified including sub-localities13 valid minerals.
Rock Types Recorded
Note: data is currently VERY limited. Please bear with us while we work towards adding this information!
Rock list contains entries from the region specified including sub-localitiesSelect Rock List Type
Alphabetical ListTree DiagramEntries shown in red are rocks recorded for this region.
Detailed Mineral List:
| ⓘAeschynite-(Ce) Formula:Ce(TiNb)O6 References:Guastoni, Alessandro, Pozzi, Giacomo, Secco, Luciano, Schiazza, Mariangela, Pennacchioni, Giorgio, Fioretti, Anna Maria, Nestola, Fabrizio (2016) Monazite-(Ce) and xenotime-(Y) from an LCT, NYF tertiary pegmatite field: Evidence from a regional study in the Central Alps (Italy and Switzerland).The Canadian Mineralogist, 54 (4). 863-877doi:10.3749/canmin.1600021 |
| ⓘAlbite Formula:Na(AlSi3O8) Localities:Pizzo Paglia pegmatite dyke, Leggia Valley, Leggia, Grono, Moesa Region, Grisons, SwitzerlandColonnello pegmatite dyke, Leggia Valley, Leggia, Grono, Moesa Region, Grisons, SwitzerlandLeggia Valley, Leggia, Grono, Moesa Region, Grisons, Switzerland |
| ⓘAlbite var. Cleavelandite Formula:Na(AlSi3O8) |
| ⓘAlmandine Formula:Fe2+3Al2(SiO4)3 Description: Core Alm58Sps41Pyr1 to rim Alm73Sps23Pyr3. |
ⓘ'Almandine-Spessartine Series'Localities:Pizzo Paglia pegmatite dyke, Leggia Valley, Leggia, Grono, Moesa Region, Grisons, SwitzerlandColonnello pegmatite dyke, Leggia Valley, Leggia, Grono, Moesa Region, Grisons, Switzerland |
| ⓘBeryl Formula:Be3Al2(Si6O18) Localities:Pizzo Paglia pegmatite dyke, Leggia Valley, Leggia, Grono, Moesa Region, Grisons, SwitzerlandColonnello pegmatite dyke, Leggia Valley, Leggia, Grono, Moesa Region, Grisons, Switzerland |
| ⓘ'Biotite' Formula:K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 Localities:Leggia Valley, Leggia, Grono, Moesa Region, Grisons, SwitzerlandPizzo Paglia pegmatite dyke, Leggia Valley, Leggia, Grono, Moesa Region, Grisons, Switzerland |
| ⓘColumbite-(Fe) Formula:Fe2+Nb2O6 |
| ⓘEuxenite-(Y) Formula:(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
| ⓘ'Garnet Group' Formula:X3Z2(SiO4)3 References:Guastoni, Alessandro, Pozzi, Giacomo, Secco, Luciano, Schiazza, Mariangela, Pennacchioni, Giorgio, Fioretti, Anna Maria, Nestola, Fabrizio (2016) Monazite-(Ce) and xenotime-(Y) from an LCT, NYF tertiary pegmatite field: Evidence from a regional study in the Central Alps (Italy and Switzerland).The Canadian Mineralogist, 54 (4). 863-877doi:10.3749/canmin.1600021 |
ⓘ'K Feldspar'Localities:Leggia Valley, Leggia, Grono, Moesa Region, Grisons, SwitzerlandPizzo Paglia pegmatite dyke, Leggia Valley, Leggia, Grono, Moesa Region, Grisons, SwitzerlandColonnello pegmatite dyke, Leggia Valley, Leggia, Grono, Moesa Region, Grisons, Switzerland |
| ⓘMonazite-(Ce) Formula:Ce(PO4) Description: As yellow-orange euhedral crystals References:Guastoni, Alessandro, Pozzi, Giacomo, Secco, Luciano, Schiazza, Mariangela, Pennacchioni, Giorgio, Fioretti, Anna Maria, Nestola, Fabrizio (2016) Monazite-(Ce) and xenotime-(Y) from an LCT, NYF tertiary pegmatite field: Evidence from a regional study in the Central Alps (Italy and Switzerland).The Canadian Mineralogist, 54 (4). 863-877doi:10.3749/canmin.1600021 |
| ⓘMuscovite Formula:KAl2(AlSi3O10)(OH)2 Localities:Pizzo Paglia pegmatite dyke, Leggia Valley, Leggia, Grono, Moesa Region, Grisons, SwitzerlandColonnello pegmatite dyke, Leggia Valley, Leggia, Grono, Moesa Region, Grisons, Switzerland |
| ⓘQuartz Formula:SiO2 Localities:Leggia Valley, Leggia, Grono, Moesa Region, Grisons, SwitzerlandPizzo Paglia pegmatite dyke, Leggia Valley, Leggia, Grono, Moesa Region, Grisons, SwitzerlandColonnello pegmatite dyke, Leggia Valley, Leggia, Grono, Moesa Region, Grisons, Switzerland |
| ⓘQuartz var. Smoky Quartz Formula:SiO2 Localities:Leggia Valley, Leggia, Grono, Moesa Region, Grisons, SwitzerlandColonnello pegmatite dyke, Leggia Valley, Leggia, Grono, Moesa Region, Grisons, SwitzerlandPizzo Paglia pegmatite dyke, Leggia Valley, Leggia, Grono, Moesa Region, Grisons, Switzerland |
| ⓘSchorl Formula:NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) Localities:Pizzo Paglia pegmatite dyke, Leggia Valley, Leggia, Grono, Moesa Region, Grisons, SwitzerlandColonnello pegmatite dyke, Leggia Valley, Leggia, Grono, Moesa Region, Grisons, Switzerland |
| ⓘSpessartine Formula:Mn2+3Al2(SiO4)3 Description: Core Sps65Alm29Pyr4 to rim Sps51Alm40Py5. |
| ⓘWodginite Formula:Mn2+Sn4+Ta2O8 |
| ⓘZircon Formula:Zr(SiO4) Localities:Pizzo Paglia pegmatite dyke, Leggia Valley, Leggia, Grono, Moesa Region, Grisons, SwitzerlandColonnello pegmatite dyke, Leggia Valley, Leggia, Grono, Moesa Region, Grisons, SwitzerlandLeggia Valley, Leggia, Grono, Moesa Region, Grisons, Switzerland |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
List of minerals for each chemical element
| H | Hydrogen |
|---|
| H | ⓘBiotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
|---|
| H | ⓘMuscovite | KAl2(AlSi3O10)(OH)2 |
|---|
| H | ⓘSchorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
|---|
| Be | Beryllium |
|---|
| Be | ⓘBeryl | Be3Al2(Si6O18) |
|---|
| B | Boron |
|---|
| B | ⓘSchorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
|---|
| O | Oxygen |
|---|
| O | ⓘAeschynite-(Ce) | Ce(TiNb)O6 |
|---|
| O | ⓘAlbite | Na(AlSi3O8) |
|---|
| O | ⓘAlmandine | Fe32+Al2(SiO4)3 |
|---|
| O | ⓘBiotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
|---|
| O | ⓘBeryl | Be3Al2(Si6O18) |
|---|
| O | ⓘEuxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
|---|
| O | ⓘColumbite-(Fe) | Fe2+Nb2O6 |
|---|
| O | ⓘMonazite-(Ce) | Ce(PO4) |
|---|
| O | ⓘMuscovite | KAl2(AlSi3O10)(OH)2 |
|---|
| O | ⓘQuartz | SiO2 |
|---|
| O | ⓘSchorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
|---|
| O | ⓘQuartz var.Smoky Quartz | SiO2 |
|---|
| O | ⓘSpessartine | Mn32+Al2(SiO4)3 |
|---|
| O | ⓘWodginite | Mn2+Sn4+Ta2O8 |
|---|
| O | ⓘZircon | Zr(SiO4) |
|---|
| O | ⓘAlbite var.Cleavelandite | Na(AlSi3O8) |
|---|
| O | ⓘAlmandine-Spessartine Series | |
|---|
| O | ⓘGarnet Group | X3Z2(SiO4)3 |
|---|
| F | Fluorine |
|---|
| F | ⓘBiotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
|---|
| Na | Sodium |
|---|
| Na | ⓘAlbite | Na(AlSi3O8) |
|---|
| Na | ⓘSchorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
|---|
| Na | ⓘAlbite var.Cleavelandite | Na(AlSi3O8) |
|---|
| Mg | Magnesium |
|---|
| Mg | ⓘBiotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
|---|
| Al | Aluminium |
|---|
| Al | ⓘAlbite | Na(AlSi3O8) |
|---|
| Al | ⓘAlmandine | Fe32+Al2(SiO4)3 |
|---|
| Al | ⓘBiotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
|---|
| Al | ⓘBeryl | Be3Al2(Si6O18) |
|---|
| Al | ⓘMuscovite | KAl2(AlSi3O10)(OH)2 |
|---|
| Al | ⓘSchorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
|---|
| Al | ⓘSpessartine | Mn32+Al2(SiO4)3 |
|---|
| Al | ⓘAlbite var.Cleavelandite | Na(AlSi3O8) |
|---|
| Al | ⓘAlmandine-Spessartine Series | |
|---|
| Si | Silicon |
|---|
| Si | ⓘAlbite | Na(AlSi3O8) |
|---|
| Si | ⓘAlmandine | Fe32+Al2(SiO4)3 |
|---|
| Si | ⓘBiotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
|---|
| Si | ⓘBeryl | Be3Al2(Si6O18) |
|---|
| Si | ⓘMuscovite | KAl2(AlSi3O10)(OH)2 |
|---|
| Si | ⓘQuartz | SiO2 |
|---|
| Si | ⓘSchorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
|---|
| Si | ⓘQuartz var.Smoky Quartz | SiO2 |
|---|
| Si | ⓘSpessartine | Mn32+Al2(SiO4)3 |
|---|
| Si | ⓘZircon | Zr(SiO4) |
|---|
| Si | ⓘAlbite var.Cleavelandite | Na(AlSi3O8) |
|---|
| Si | ⓘAlmandine-Spessartine Series | |
|---|
| Si | ⓘGarnet Group | X3Z2(SiO4)3 |
|---|
| P | Phosphorus |
|---|
| P | ⓘMonazite-(Ce) | Ce(PO4) |
|---|
| K | Potassium |
|---|
| K | ⓘBiotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
|---|
| K | ⓘMuscovite | KAl2(AlSi3O10)(OH)2 |
|---|
| Ca | Calcium |
|---|
| Ca | ⓘEuxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
|---|
| Ti | Titanium |
|---|
| Ti | ⓘAeschynite-(Ce) | Ce(TiNb)O6 |
|---|
| Ti | ⓘBiotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
|---|
| Ti | ⓘEuxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
|---|
| Mn | Manganese |
|---|
| Mn | ⓘSpessartine | Mn32+Al2(SiO4)3 |
|---|
| Mn | ⓘWodginite | Mn2+Sn4+Ta2O8 |
|---|
| Mn | ⓘAlmandine-Spessartine Series | |
|---|
| Fe | Iron |
|---|
| Fe | ⓘAlmandine | Fe32+Al2(SiO4)3 |
|---|
| Fe | ⓘBiotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
|---|
| Fe | ⓘColumbite-(Fe) | Fe2+Nb2O6 |
|---|
| Fe | ⓘSchorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
|---|
| Fe | ⓘAlmandine-Spessartine Series | |
|---|
| Y | Yttrium |
|---|
| Y | ⓘEuxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
|---|
| Zr | Zirconium |
|---|
| Zr | ⓘZircon | Zr(SiO4) |
|---|
| Nb | Niobium |
|---|
| Nb | ⓘAeschynite-(Ce) | Ce(TiNb)O6 |
|---|
| Nb | ⓘEuxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
|---|
| Nb | ⓘColumbite-(Fe) | Fe2+Nb2O6 |
|---|
| Sn | Tin |
|---|
| Sn | ⓘWodginite | Mn2+Sn4+Ta2O8 |
|---|
| Ce | Cerium |
|---|
| Ce | ⓘAeschynite-(Ce) | Ce(TiNb)O6 |
|---|
| Ce | ⓘEuxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
|---|
| Ce | ⓘMonazite-(Ce) | Ce(PO4) |
|---|
| Ta | Tantalum |
|---|
| Ta | ⓘEuxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
|---|
| Ta | ⓘWodginite | Mn2+Sn4+Ta2O8 |
|---|
| Th | Thorium |
|---|
| Th | ⓘEuxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
|---|
| U | Uranium |
|---|
| U | ⓘEuxenite-(Y) | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
|---|
Fossils
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Localities in this Region
Other Regions, Features and Areas that Intersect
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 tovisit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holdersfor access and that you are aware of all safety precautions necessary. ReferencesGuastoni, Alessandro, Pozzi, Giacomo, Secco, Luciano, Schiazza, Mariangela, Pennacchioni, Giorgio, Fioretti, Anna Maria, Nestola, Fabrizio (2016) Monazite-(Ce) and xenotime-(Y) from an LCT, NYF tertiary pegmatite field: Evidence from a regional study in the Central Alps (Italy and Switzerland).The Canadian Mineralogist, 54 (4). 863-877doi:10.3749/canmin.1600021 Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2025, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph. To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486. Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerabilityCurrent server date and time: November 28, 2025 09:02:02 Page updated: August 22, 2025 01:07:03 |