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Val Giuv, Tujetsch, Surselva Region, Grisons, Switzerlandi
| Regional Level Types | |
|---|---|
| Val Giuv | Valley |
| Tujetsch | Municipality |
| Surselva Region | Region |
| Grisons | Canton |
| Switzerland | Country |
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Latitude & Longitude (WGS84):
46° 41' 32'' North , 8° 42' 5'' East
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Other/historical names associated with this locality:
Val Giuf; Giuv Valley
Name(s) in local language(s):
Val Giuv, Tujetsch (Tavetsch), Vorderrheintal, Graubünden (Grisons; Grischun), Schweiz (Suisse; Svizzera)
In older literature also: Val Giuf.
Val Giuv is a glacial trough valley in the south-eastern Aar massif.
Geology
The lower, southern part of the valley cuts through three structural units and the respective rocks: Tavetscher Zwischenmassiv at the southern end, the so-called Altkristallin rocks and the so-called Southern Aare granite to the north. The boundaries between these rocks are blurred because the rocks have been subject to great tectonic stress and mostly turned to schists with vertical foliation and joints.
At the northern end of the valley, in upper Val Giuv, a weakly metamorphosed igneous rock called "Giuvsyenit" (a quartz-monzonite / quartz-syenite) is exposed. The elongated body of the Giuv "syenite" extends from the Schijenstock in the Riental, the Fellital, Val Val, Val Giuv, Etzlital, to the Stremhörner in Val Strem.
The Giuv "syenite" contains about 40% large white elongated K-feldspar crystals in subparallel orientation, greenish actinolite, and dark biotite, giving it a characteristic "stripy" look. The rock has an unusually high content of uranium and thorium (Labhart, 1977).
The rock is cut by numerous aplitic dikes that may be several meters wide and extend over hundreds of meters. There are also numerous zones of schists.
Mineralizations
Val Giuv is very rich in Alpine-type fissures, in particular, the Giuv syenite. Pockets are unevenly distributed and are concentrated along the southern boundary of the Giuv syenite rock body. Alpine-type fissures also occur in the aplite dikes but differ slightly in their paragenesis (beryllium minerals like milarite only occur in and around aplites).
Collecting
To collect in Val Giuv one needs to purchase a collecting permit from the Tujetsch community (a so-called "Strahlerpatent"). Val Giuv has been searched for minerals for about 200 years. Good finds are still being made, but opening an Alpine-type fissure requires substantial effort and is usually done with drills and explosives. Everything "obvious" has been exploited a long time ago, and very little new gets exposed by erosion, so one should lower one's expectations for a day trip.
Val Giuv is a glacial trough valley in the south-eastern Aar massif.
Geology
The lower, southern part of the valley cuts through three structural units and the respective rocks: Tavetscher Zwischenmassiv at the southern end, the so-called Altkristallin rocks and the so-called Southern Aare granite to the north. The boundaries between these rocks are blurred because the rocks have been subject to great tectonic stress and mostly turned to schists with vertical foliation and joints.
At the northern end of the valley, in upper Val Giuv, a weakly metamorphosed igneous rock called "Giuvsyenit" (a quartz-monzonite / quartz-syenite) is exposed. The elongated body of the Giuv "syenite" extends from the Schijenstock in the Riental, the Fellital, Val Val, Val Giuv, Etzlital, to the Stremhörner in Val Strem.
The Giuv "syenite" contains about 40% large white elongated K-feldspar crystals in subparallel orientation, greenish actinolite, and dark biotite, giving it a characteristic "stripy" look. The rock has an unusually high content of uranium and thorium (Labhart, 1977).
The rock is cut by numerous aplitic dikes that may be several meters wide and extend over hundreds of meters. There are also numerous zones of schists.
Mineralizations
Val Giuv is very rich in Alpine-type fissures, in particular, the Giuv syenite. Pockets are unevenly distributed and are concentrated along the southern boundary of the Giuv syenite rock body. Alpine-type fissures also occur in the aplite dikes but differ slightly in their paragenesis (beryllium minerals like milarite only occur in and around aplites).
Collecting
To collect in Val Giuv one needs to purchase a collecting permit from the Tujetsch community (a so-called "Strahlerpatent"). Val Giuv has been searched for minerals for about 200 years. Good finds are still being made, but opening an Alpine-type fissure requires substantial effort and is usually done with drills and explosives. Everything "obvious" has been exploited a long time ago, and very little new gets exposed by erosion, so one should lower one's expectations for a day trip.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
Mineral list contains entries from the region specified including sub-localities25 valid minerals. 1 (TL) - type locality of valid minerals. 1 erroneous literature entry.
Detailed Mineral List:
| ⓘ Actinolite Formula: ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| ⓘ Albite Formula: Na(AlSi3O8) |
| ⓘ 'Amphibole Supergroup' Formula: AB2C5(T8O22)W2 Localities: |
| ⓘ 'Amphibole Supergroup var. Byssolite' Formula: AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 Localities: |
| ⓘ 'Apatite' Formula: Ca5(PO4)3A |
| ⓘ 'Apophyllite Group' Formula: AB4[Si8O20]X · 8H2O |
| ⓘ Baryte Formula: BaSO4 |
| ⓘ Calcite Formula: CaCO3 |
| ⓘ 'Chabazite' |
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ Clinochlore Formula: Mg5Al(AlSi3O10)(OH)8 Localities: Emprema Muotta, Val Giuv, Tujetsch, Surselva Region, Grisons, Switzerland Secunda Muotta, Val Giuv, Tujetsch, Surselva Region, Grisons, Switzerland Tiarza Muotta, Val Giuv, Tujetsch, Surselva Region, Grisons, Switzerland Val Giuv, Tujetsch, Surselva Region, Grisons, Switzerland Rotwichel, Val Giuv, Tujetsch, Surselva Region, Grisons, Switzerland |
| ⓘ Datolite Formula: CaB(SiO4)(OH) |
| ⓘ Epidote Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| ⓘ Fluorapatite Formula: Ca5(PO4)3F Description: Small, usually colorless and clear, well-developed crystals of good luster.
|
| ⓘ Fluorite Formula: CaF2 |
| ⓘ Galena Formula: PbS |
| ⓘ Hematite Formula: Fe2O3 |
| ⓘ Heulandite-Ca Formula: (Ca,Na)5(Si27Al9)O72 · 26H2O |
| ⓘ 'K Feldspar' Localities: Val Giuv, Tujetsch, Surselva Region, Grisons, Switzerland Emprema Muotta, Val Giuv, Tujetsch, Surselva Region, Grisons, Switzerland Secunda Muotta, Val Giuv, Tujetsch, Surselva Region, Grisons, Switzerland Kalkspat-Lücke, Val Giuv, Tujetsch, Surselva Region, Grisons, Switzerland Tiarza Muotta, Val Giuv, Tujetsch, Surselva Region, Grisons, Switzerland |
| ⓘ 'K Feldspar var. Adularia' Formula: KAlSi3O8 Localities: Val Giuv, Tujetsch, Surselva Region, Grisons, Switzerland Emprema Muotta, Val Giuv, Tujetsch, Surselva Region, Grisons, Switzerland Secunda Muotta, Val Giuv, Tujetsch, Surselva Region, Grisons, Switzerland Kalkspat-Lücke, Val Giuv, Tujetsch, Surselva Region, Grisons, Switzerland Tiarza Muotta, Val Giuv, Tujetsch, Surselva Region, Grisons, Switzerland |
| ⓘ Laumontite Formula: CaAl2Si4O12 · 4H2O |
| ⓘ Malachite Formula: Cu2(CO3)(OH)2 References: |
| ✪ Milarite (TL) Formula: K(◻H2O)Ca2(Be2Al)[Si12O30] Type Locality: Habit: Hexagonal crystals, smaller crystals clear, larger crystals translucent. Largest Alpine specimen, 4.5cm has been found here in 2000. Colour: Colorless, green, yellow Description: Like other Be-bearing minerals at this locality typically associated with aplitic dikes.
References: |
| ⓘ Muscovite Formula: KAl2(AlSi3O10)(OH)2 Localities: Description: Small, shiny muscovite books intergrown with massive quartz in mylonitic shists. |
| ⓘ Muscovite var. Illite Formula: K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
| ⓘ Phenakite Formula: Be2SiO4 |
| ⓘ Prehnite Formula: Ca2Al2Si3O10(OH)2 |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Quartz Formula: SiO2 Localities: Reported from at least 7 localities in this region. Habit: Macromosaic quartz of normal habit, large trapezohedral faces (x-faces) are not uncommon, these are often roughened. Famous gwindel locality. Colour: cognac-colored to dark smoky quartz, sometimes lighter colors in pockets of aplitic dikes. |
| ⓘ Quartz var. Amethyst Formula: SiO2 Colour: pale purple Description: Scepter quartz with pale purple tips. Found by Dosi Venzin in 1989. References: |
| ⓘ Quartz var. Quartz Gwindel Formula: SiO2 |
| ⓘ Quartz var. Rock Crystal Formula: SiO2 Habit: Normal habit, with trapezohedral faces. Description: Limonite-encrusted, clear, rock crystals have been found by Dosi Venzin in 2006, together with limonitized pyrite, adularia and chabazite.
References: |
| ⓘ Quartz var. Smoky Quartz Formula: SiO2 Localities: Reported from at least 7 localities in this region. |
| ⓘ Rutile Formula: TiO2 References: |
| ⓘ Scheelite Formula: Ca(WO4) |
| ⓘ Scolecite Formula: CaAl2Si3O10 · 3H2O |
| ⓘ Formula: Na4MnZr2Ti(Si2O7)2O2F2 |
| ⓘ 'Stilbite Subgroup' Formula: M6-7[Al8-9Si27-28O72] · nH2O |
| ⓘ Titanite Formula: CaTiO(SiO4) |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 3 - Halides | |||
| ⓘ | Fluorite | 3.AB.25 | CaF2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Hematite | 4.CB.05 | Fe2O3 |
| ⓘ | Quartz var. Amethyst | 4.DA.05 | SiO2 |
| ⓘ | 4.DA.05 | SiO2 | |
| ⓘ | var. Smoky Quartz | 4.DA.05 | SiO2 |
| ⓘ | var. Rock Crystal | 4.DA.05 | SiO2 |
| ⓘ | var. Quartz Gwindel | 4.DA.05 | SiO2 |
| ⓘ | Rutile | 4.DB.05 | TiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| ⓘ | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Baryte | 7.AD.35 | BaSO4 |
| ⓘ | Scheelite | 7.GA.05 | Ca(WO4) |
| Group 8 - Phosphates, Arsenates and Vanadates | |||
| ⓘ | Fluorapatite | 8.BN.05 | Ca5(PO4)3F |
| Group 9 - Silicates | |||
| ⓘ | Phenakite | 9.AA.05 | Be2SiO4 |
| ⓘ | Titanite | 9.AG.15 | CaTiO(SiO4) |
| ⓘ | Datolite | 9.AJ.20 | CaB(SiO4)(OH) |
| ⓘ | Seidozerite ? | 9.BE.25 | Na4MnZr2Ti(Si2O7)2O2F2 |
| ⓘ | Epidote | 9.BG.05a | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| ⓘ | Milarite (TL) | 9.CM.05 | K(◻H2O)Ca2(Be2Al)[Si12O30] |
| ⓘ | Actinolite | 9.DE.10 | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| ⓘ | Prehnite | 9.DP.20 | Ca2Al2Si3O10(OH)2 |
| ⓘ | Muscovite var. Illite | 9.EC.15 | K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
| ⓘ | 9.EC.15 | KAl2(AlSi3O10)(OH)2 | |
| ⓘ | Clinochlore | 9.EC.55 | Mg5Al(AlSi3O10)(OH)8 |
| ⓘ | Albite | 9.FA.35 | Na(AlSi3O8) |
| ⓘ | Scolecite | 9.GA.05 | CaAl2Si3O10 · 3H2O |
| ⓘ | Laumontite | 9.GB.10 | CaAl2Si4O12 · 4H2O |
| ⓘ | Heulandite-Ca | 9.GE.05 | (Ca,Na)5(Si27Al9)O72 · 26H2O |
| Unclassified | |||
| ⓘ | 'K Feldspar var. Adularia' | - | KAlSi3O8 |
| ⓘ | 'Amphibole Supergroup' | - | AB2C5(T8O22)W2 |
| ⓘ | 'Apophyllite Group' | - | AB4[Si8O20]X · 8H2O |
| ⓘ | 'Chabazite' | - | |
| ⓘ | 'Stilbite Subgroup' | - | M6-7[Al8-9Si27-28O72] · nH2O |
| ⓘ | 'K Feldspar' | - | |
| ⓘ | 'Amphibole Supergroup var. Byssolite' | - | AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| ⓘ | 'Apatite' | - | Ca5(PO4)3A |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| H | ⓘ Apophyllite Group | AB4[Si8O20]X · 8H2O |
| H | ⓘ Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
| H | ⓘ Datolite | CaB(SiO4)(OH) |
| H | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| H | ⓘ Muscovite var. Illite | K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
| H | ⓘ Laumontite | CaAl2Si4O12 · 4H2O |
| H | ⓘ Malachite | Cu2(CO3)(OH)2 |
| H | ⓘ Milarite | K(◻H2O)Ca2(Be2Al)[Si12O30] |
| H | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| H | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| H | ⓘ Scolecite | CaAl2Si3O10 · 3H2O |
| H | ⓘ Stilbite Subgroup | M6-7[Al8-9Si27-28O72] · nH2O |
| H | ⓘ Heulandite-Ca | (Ca,Na)5(Si27Al9)O72 · 26H2O |
| H | ⓘ Amphibole Supergroup var. Byssolite | AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| Be | Beryllium | |
| Be | ⓘ Milarite | K(◻H2O)Ca2(Be2Al)[Si12O30] |
| Be | ⓘ Phenakite | Be2SiO4 |
| B | Boron | |
| B | ⓘ Datolite | CaB(SiO4)(OH) |
| C | Carbon | |
| C | ⓘ Calcite | CaCO3 |
| C | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | Oxygen | |
| O | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| O | ⓘ K Feldspar var. Adularia | KAlSi3O8 |
| O | ⓘ Albite | Na(AlSi3O8) |
| O | ⓘ Quartz var. Amethyst | SiO2 |
| O | ⓘ Amphibole Supergroup | AB2C5(T8O22)W2 |
| O | ⓘ Apophyllite Group | AB4[Si8O20]X · 8H2O |
| O | ⓘ Baryte | BaSO4 |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
| O | ⓘ Datolite | CaB(SiO4)(OH) |
| O | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| O | ⓘ Fluorapatite | Ca5(PO4)3F |
| O | ⓘ Hematite | Fe2O3 |
| O | ⓘ Muscovite var. Illite | K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
| O | ⓘ Laumontite | CaAl2Si4O12 · 4H2O |
| O | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | ⓘ Milarite | K(◻H2O)Ca2(Be2Al)[Si12O30] |
| O | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | ⓘ Phenakite | Be2SiO4 |
| O | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Rutile | TiO2 |
| O | ⓘ Scheelite | Ca(WO4) |
| O | ⓘ Scolecite | CaAl2Si3O10 · 3H2O |
| O | ⓘ Seidozerite | Na4MnZr2Ti(Si2O7)2O2F2 |
| O | ⓘ Quartz var. Smoky Quartz | SiO2 |
| O | ⓘ Stilbite Subgroup | M6-7[Al8-9Si27-28O72] · nH2O |
| O | ⓘ Titanite | CaTiO(SiO4) |
| O | ⓘ Quartz var. Rock Crystal | SiO2 |
| O | ⓘ Heulandite-Ca | (Ca,Na)5(Si27Al9)O72 · 26H2O |
| O | ⓘ Amphibole Supergroup var. Byssolite | AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| O | ⓘ Apatite | Ca5(PO4)3A |
| O | ⓘ Quartz var. Quartz Gwindel | SiO2 |
| F | Fluorine | |
| F | ⓘ Fluorapatite | Ca5(PO4)3F |
| F | ⓘ Fluorite | CaF2 |
| F | ⓘ Seidozerite | Na4MnZr2Ti(Si2O7)2O2F2 |
| F | ⓘ Amphibole Supergroup var. Byssolite | AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| Na | Sodium | |
| Na | ⓘ Albite | Na(AlSi3O8) |
| Na | ⓘ Seidozerite | Na4MnZr2Ti(Si2O7)2O2F2 |
| Na | ⓘ Heulandite-Ca | (Ca,Na)5(Si27Al9)O72 · 26H2O |
| Mg | Magnesium | |
| Mg | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| Mg | ⓘ Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
| Al | Aluminium | |
| Al | ⓘ K Feldspar var. Adularia | KAlSi3O8 |
| Al | ⓘ Albite | Na(AlSi3O8) |
| Al | ⓘ Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
| Al | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Al | ⓘ Muscovite var. Illite | K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
| Al | ⓘ Laumontite | CaAl2Si4O12 · 4H2O |
| Al | ⓘ Milarite | K(◻H2O)Ca2(Be2Al)[Si12O30] |
| Al | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Al | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| Al | ⓘ Scolecite | CaAl2Si3O10 · 3H2O |
| Al | ⓘ Stilbite Subgroup | M6-7[Al8-9Si27-28O72] · nH2O |
| Al | ⓘ Heulandite-Ca | (Ca,Na)5(Si27Al9)O72 · 26H2O |
| Al | ⓘ Amphibole Supergroup var. Byssolite | AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| Si | Silicon | |
| Si | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| Si | ⓘ K Feldspar var. Adularia | KAlSi3O8 |
| Si | ⓘ Albite | Na(AlSi3O8) |
| Si | ⓘ Quartz var. Amethyst | SiO2 |
| Si | ⓘ Apophyllite Group | AB4[Si8O20]X · 8H2O |
| Si | ⓘ Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
| Si | ⓘ Datolite | CaB(SiO4)(OH) |
| Si | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Si | ⓘ Muscovite var. Illite | K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
| Si | ⓘ Laumontite | CaAl2Si4O12 · 4H2O |
| Si | ⓘ Milarite | K(◻H2O)Ca2(Be2Al)[Si12O30] |
| Si | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | ⓘ Phenakite | Be2SiO4 |
| Si | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Scolecite | CaAl2Si3O10 · 3H2O |
| Si | ⓘ Seidozerite | Na4MnZr2Ti(Si2O7)2O2F2 |
| Si | ⓘ Quartz var. Smoky Quartz | SiO2 |
| Si | ⓘ Stilbite Subgroup | M6-7[Al8-9Si27-28O72] · nH2O |
| Si | ⓘ Titanite | CaTiO(SiO4) |
| Si | ⓘ Quartz var. Rock Crystal | SiO2 |
| Si | ⓘ Heulandite-Ca | (Ca,Na)5(Si27Al9)O72 · 26H2O |
| Si | ⓘ Amphibole Supergroup var. Byssolite | AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| Si | ⓘ Quartz var. Quartz Gwindel | SiO2 |
| P | Phosphorus | |
| P | ⓘ Fluorapatite | Ca5(PO4)3F |
| P | ⓘ Apatite | Ca5(PO4)3A |
| S | Sulfur | |
| S | ⓘ Baryte | BaSO4 |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Galena | PbS |
| S | ⓘ Pyrite | FeS2 |
| Cl | Chlorine | |
| Cl | ⓘ Amphibole Supergroup var. Byssolite | AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| K | Potassium | |
| K | ⓘ K Feldspar var. Adularia | KAlSi3O8 |
| K | ⓘ Muscovite var. Illite | K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
| K | ⓘ Milarite | K(◻H2O)Ca2(Be2Al)[Si12O30] |
| K | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Ca | Calcium | |
| Ca | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Datolite | CaB(SiO4)(OH) |
| Ca | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Ca | ⓘ Fluorapatite | Ca5(PO4)3F |
| Ca | ⓘ Fluorite | CaF2 |
| Ca | ⓘ Laumontite | CaAl2Si4O12 · 4H2O |
| Ca | ⓘ Milarite | K(◻H2O)Ca2(Be2Al)[Si12O30] |
| Ca | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| Ca | ⓘ Scheelite | Ca(WO4) |
| Ca | ⓘ Scolecite | CaAl2Si3O10 · 3H2O |
| Ca | ⓘ Titanite | CaTiO(SiO4) |
| Ca | ⓘ Heulandite-Ca | (Ca,Na)5(Si27Al9)O72 · 26H2O |
| Ca | ⓘ Apatite | Ca5(PO4)3A |
| Ti | Titanium | |
| Ti | ⓘ Rutile | TiO2 |
| Ti | ⓘ Seidozerite | Na4MnZr2Ti(Si2O7)2O2F2 |
| Ti | ⓘ Titanite | CaTiO(SiO4) |
| Ti | ⓘ Amphibole Supergroup var. Byssolite | AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| Mn | Manganese | |
| Mn | ⓘ Seidozerite | Na4MnZr2Ti(Si2O7)2O2F2 |
| Fe | Iron | |
| Fe | ⓘ Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Fe | ⓘ Hematite | Fe2O3 |
| Fe | ⓘ Pyrite | FeS2 |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Cu | ⓘ Malachite | Cu2(CO3)(OH)2 |
| Zr | Zirconium | |
| Zr | ⓘ Seidozerite | Na4MnZr2Ti(Si2O7)2O2F2 |
| Ba | Barium | |
| Ba | ⓘ Baryte | BaSO4 |
| W | Tungsten | |
| W | ⓘ Scheelite | Ca(WO4) |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
Localities in this Region
- Grisons
- Surselva Region
Other Regions, Features and Areas containing this locality
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References
Val Giuv, Tujetsch, Surselva Region, Grisons, Switzerland