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Giuv Valley, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden), Switzerlandi
Regional Level Types
Giuv ValleyValley
Tujetsch (Tavetsch)- not defined -
Vorderrhein ValleyValley
Grischun (Grisons; Graubünden)- not defined -
SwitzerlandCountry

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Name(s) in local language(s):Val Giuv, Tujetsch (Tavetsch), Vorderrheintal, Graubünden (Grisons; Grischun), Schweiz (Suisse; Svizzera)
Latitude & Longitude (WGS84): 46° 41' 32'' North , 8° 42' 5'' East
Latitude & Longitude (decimal): 46.69243,8.70162
GeoHash:G#: u0q1wh074
Locality type:Valley
Köppen climate type:ET : Tundra


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 efforts 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.

Regions containing this locality

Eurasian PlateTectonic Plate
EuropeContinent
The Alps, EuropeMountain Range

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List

Mineral list contains entries from the region specified including sub-localities

25 valid minerals. 1 (TL) - type locality of valid minerals.

Detailed Mineral List:

Actinolite
Formula: ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Reference: Koenigsberger, J.G. (1940) Die zentralalpinen Minerallagerstätten, Wepf und Co. Verlag, Basel.
Albite
Formula: Na(AlSi3O8)
Reference: Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 362.
'Amphibole Supergroup'
Formula: AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
'Amphibole Supergroup var: Byssolite'
Formula: AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
'Apatite'
'Apophyllite'
Reference: Koenigsberger, J.G. (1940) Die zentralalpinen Minerallagerstätten, Wepf und Co. Verlag, Basel.
Baryte
Formula: BaSO4
Reference: Jahn, S. (2004): Klassische Weltfundstelle: Val Giuv. Mineralien Welt 15 (1), 34-61
Calcite
Formula: CaCO3
'Chabazite'
Reference: Jahn, S. (2004): Klassische Weltfundstelle: Val Giuv. Mineralien Welt 15 (1), 34-61
Chalcopyrite
Formula: CuFeS2
Reference: Jahn, S. (2004): Klassische Weltfundstelle: Val Giuv. Mineralien Welt 15 (1), 34-61
Clinochlore
Formula: Mg5Al(AlSi3O10)(OH)8
Description: Very common as pocket clay and superficial inclusion in adularia and quartz, also in titanite.
Reference: Jahn, S. (2004): Klassische Weltfundstelle: Val Giuv. Mineralien Welt 15 (1), 34-61
Datolite
Formula: CaB(SiO4)(OH)
Reference: Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): Mineralienlexikon der Schweiz. Wepf (Basel), p. 132.
Epidote
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Reference: Koenigsberger, J.G. (1940) Die zentralalpinen Minerallagerstätten, Wepf und Co. Verlag, Basel.
Fluorapatite
Formula: Ca5(PO4)3F
Description: Small, usually colorless and clear, well-developed crystals of good luster.
Reference: Jahn, S. (2004) Klassische Weltfundstelle: Val Giuv. Mineralien Welt, 15(1): 34-61
Fluorite
Formula: CaF2
Galena
Formula: PbS
Reference: Jahn, S. (2004): Klassische Weltfundstelle: Val Giuv. Mineralien Welt 15 (1), 34-61
Hematite
Formula: Fe2O3
Reference: Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 208.
Heulandite-Ca
Formula: (Ca,Na)5(Si27Al9)O72 · 26H2O
Reference: Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 214.
'K Feldspar'
Reference: Jahn, S. (2004): Klassische Weltfundstelle: Val Giuv. Mineralien Welt 15 (1), 34-61
'K Feldspar var: Adularia'
Formula: KAlSi3O8
Reference: Jahn, S. (2004): Klassische Weltfundstelle: Val Giuv. Mineralien Welt 15 (1), 34-61
Laumontite
Formula: CaAl2Si4O12 · 4H2O
Reference: Jahn, S. (2004): Klassische Weltfundstelle: Val Giuv. Mineralien Welt 15 (1), 34-61
Malachite
Formula: Cu2(CO3)(OH)2
Reference: "Amir Akhavan" collection
Milarite (TL)
Formula: K2Ca4Al2Be4Si24O60 · H2O
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.
Reference: Neues Jahrb.Min.(1870) 80
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Muscovite var: Illite
Formula: K0.65Al2.0[Al0.65Si3.35O10](OH)2
Reference: Jahn, S. (2004): Klassische Weltfundstelle: Val Giuv. Mineralien Welt 15 (1), 34-61
Phenakite
Formula: Be2SiO4
Reference: Jahn, S., Bode, R. (2005) Das Tujetsch - Mineralien und Fundstellen einer klassischen Strahler-Region in der Schweiz (II). Mineralien-Welt: 16(1): 17-33.
Prehnite
Formula: Ca2Al2Si3O10(OH)2
Reference: Koenigsberger, J.G. (1940) Die zentralalpinen Minerallagerstätten, Wepf und Co. Verlag, Basel.
Pyrite
Formula: FeS2
Reference: Jahn, S. (2004): Klassische Weltfundstelle: Val Giuv. Mineralien Welt 15 (1), 34-61
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.
Reference: Jahn, S. (2004) Klassische Weltfundstelle: Val Giuv. Mineralien Welt, 15 (1): 34-61
Quartz var: Amethyst
Formula: SiO2
Colour: pale purple
Description: Scepter quartz with pale purple tips. Found by Dosi Venzin in 1989.
Reference: Amir Akhavan Collection
Quartz var: Gwindel
Formula: SiO2
Reference: Koenigsberger, J.G. (1940) Die zentralalpinen Minerallagerstätten, Wepf und Co. Verlag, Basel.
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.
Reference: Amir Akhavan Collection
Quartz var: Smoky Quartz
Formula: SiO2
Localities: Reported from at least 7 localities in this region.
Scheelite
Formula: Ca(WO4)
Scolecite
Formula: CaAl2Si3O10 · 3H2O
Reference: Jahn, S. (2004): Klassische Weltfundstelle: Val Giuv. Mineralien Welt 15 (1), 34-61
Seidozerite
Formula: Na4MnZr2Ti(Si2O7)2O2F2
Reference: http://www.handbookofmineralogy.org/pdfs/seidozerite.pdf
'Stilbite subgroup'
Reference: Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 388.
Titanite
Formula: CaTi(SiO4)O
Reference: Koenigsberger, J.G. (1940) Die zentralalpinen Minerallagerstätten, Wepf und Co. Verlag, Basel.

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Chalcopyrite2.CB.10aCuFeS2
Galena2.CD.10PbS
Pyrite2.EB.05aFeS2
Group 3 - Halides
Fluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
Hematite4.CB.05Fe2O3
Quartz4.DA.05SiO2
var: Amethyst4.DA.05SiO2
var: Gwindel4.DA.05SiO2
var: Rock Crystal4.DA.05SiO2
var: Smoky Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Malachite5.BA.10Cu2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Baryte7.AD.35BaSO4
Scheelite7.GA.05Ca(WO4)
Group 8 - Phosphates, Arsenates and Vanadates
Fluorapatite8.BN.05Ca5(PO4)3F
Group 9 - Silicates
Actinolite9.DE.10☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Albite9.FA.35Na(AlSi3O8)
Clinochlore9.EC.55Mg5Al(AlSi3O10)(OH)8
Datolite9.AJ.20CaB(SiO4)(OH)
Epidote9.BG.05a{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Heulandite-Ca9.GE.05(Ca,Na)5(Si27Al9)O72 · 26H2O
Laumontite9.GB.10CaAl2Si4O12 · 4H2O
Milarite (TL)9.CM.05K2Ca4Al2Be4Si24O60 · H2O
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
var: Illite9.EC.15K0.65Al2.0[Al0.65Si3.35O10](OH)2
Phenakite9.AA.05Be2SiO4
Prehnite9.DP.20Ca2Al2Si3O10(OH)2
Scolecite9.GA.05CaAl2Si3O10 · 3H2O
Seidozerite9.BE.25Na4MnZr2Ti(Si2O7)2O2F2
Titanite9.AG.15CaTi(SiO4)O
Unclassified Minerals, Rocks, etc.
'Amphibole Supergroup'-AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
'var: Byssolite'-AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
'Apatite'-
'Apophyllite'-
'Chabazite'-
'K Feldspar'-
'var: Adularia'-KAlSi3O8
'Stilbite subgroup'-

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmXp, with m:p = 1:1
Galena2.8.1.1PbS
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
Group 9 - NORMAL HALIDES
AX2
Fluorite9.2.1.1CaF2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Malachite16a.3.1.1Cu2(CO3)(OH)2
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Baryte28.3.1.1BaSO4
Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
A5(XO4)3Zq
Fluorapatite41.8.1.1Ca5(PO4)3F
Group 48 - ANHYDROUS MOLYBDATES AND TUNGSTATES
AXO4
Scheelite48.1.2.1Ca(WO4)
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [4] coordination
Phenakite51.1.1.1Be2SiO4
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 54 - NESOSILICATES Borosilicates and Some Beryllosilicates
Borosilicates and Some Beryllosilicates with B in [4] coordination
Datolite54.2.1a.1CaB(SiO4)(OH)
Group 56 - SOROSILICATES Si2O7 Groups, With Additional O, OH, F and H2O
Si2O7 Groups and O, OH, F, and H2O with cations in [4] and/or >[4] coordination
Seidozerite56.2.6a.1Na4MnZr2Ti(Si2O7)2O2F2
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)
Epidote58.2.1a.7{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Group 63 - CYCLOSILICATES Condensed Rings
Condensed Rings (Milarite - Osumilite group)
Milarite (TL)63.2.1a.12K2Ca4Al2Be4Si24O60 · H2O
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
var: Illite71.2.2d.2K0.65Al2.0[Al0.65Si3.35O10](OH)2
Sheets of 6-membered rings interlayered 1:1, 2:1, and octahedra
Clinochlore71.4.1.4Mg5Al(AlSi3O10)(OH)8
Group 72 - PHYLLOSILICATES Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings
Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings with 4-membered rings
Prehnite72.1.3.1Ca2Al2Si3O10(OH)2
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Albite76.1.3.1Na(AlSi3O8)
Group 77 - TECTOSILICATES Zeolites
Zeolite group - True zeolites
Heulandite-Ca77.1.4.1(Ca,Na)5(Si27Al9)O72 · 26H2O
Laumontite77.1.1.4CaAl2Si4O12 · 4H2O
Scolecite77.1.5.5CaAl2Si3O10 · 3H2O
Unclassified Minerals, Mixtures, etc.
Actinolite-☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
'Amphibole Supergroup'-AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
'var: Byssolite'-AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
'Apatite'-
'Apophyllite'-
'Chabazite'-
'K Feldspar'-
'var: Adularia'-KAlSi3O8
Quartz
var: Amethyst
-SiO2
var: Gwindel-SiO2
var: Rock Crystal-SiO2
var: Smoky Quartz-SiO2
'Stilbite subgroup'-

List of minerals for each chemical element

HHydrogen
H MilariteK2Ca4Al2Be4Si24O60 · H2O
H Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
H Muscovite (var: Illite)K0.65Al2.0[Al0.65Si3.35O10](OH)2
H ClinochloreMg5Al(AlSi3O10)(OH)8
H LaumontiteCaAl2Si4O12 · 4H2O
H ScoleciteCaAl2Si3O10 · 3H2O
H DatoliteCaB(SiO4)(OH)
H Heulandite-Ca(Ca,Na)5(Si27Al9)O72 · 26H2O
H Amphibole Supergroup (var: Byssolite)AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
H MuscoviteKAl2(AlSi3O10)(OH)2
H PrehniteCa2Al2Si3O10(OH)2
H MalachiteCu2(CO3)(OH)2
H Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
H Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
BeBeryllium
Be MilariteK2Ca4Al2Be4Si24O60 · H2O
Be PhenakiteBe2SiO4
BBoron
B DatoliteCaB(SiO4)(OH)
CCarbon
C CalciteCaCO3
C MalachiteCu2(CO3)(OH)2
OOxygen
O MilariteK2Ca4Al2Be4Si24O60 · H2O
O QuartzSiO2
O K Feldspar (var: Adularia)KAlSi3O8
O Quartz (var: Rock Crystal)SiO2
O SeidozeriteNa4MnZr2Ti(Si2O7)2O2F2
O Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
O TitaniteCaTi(SiO4)O
O BaryteBaSO4
O FluorapatiteCa5(PO4)3F
O Muscovite (var: Illite)K0.65Al2.0[Al0.65Si3.35O10](OH)2
O ClinochloreMg5Al(AlSi3O10)(OH)8
O LaumontiteCaAl2Si4O12 · 4H2O
O ScoleciteCaAl2Si3O10 · 3H2O
O DatoliteCaB(SiO4)(OH)
O CalciteCaCO3
O HematiteFe2O3
O Heulandite-Ca(Ca,Na)5(Si27Al9)O72 · 26H2O
O AlbiteNa(AlSi3O8)
O Quartz (var: Smoky Quartz)SiO2
O Amphibole Supergroup (var: Byssolite)AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
O ScheeliteCa(WO4)
O MuscoviteKAl2(AlSi3O10)(OH)2
O PrehniteCa2Al2Si3O10(OH)2
O MalachiteCu2(CO3)(OH)2
O Quartz (var: Gwindel)SiO2
O Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
O PhenakiteBe2SiO4
O Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
O Quartz (var: Amethyst)SiO2
FFluorine
F SeidozeriteNa4MnZr2Ti(Si2O7)2O2F2
F FluorapatiteCa5(PO4)3F
F FluoriteCaF2
F Amphibole Supergroup (var: Byssolite)AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
F Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
NaSodium
Na SeidozeriteNa4MnZr2Ti(Si2O7)2O2F2
Na Heulandite-Ca(Ca,Na)5(Si27Al9)O72 · 26H2O
Na AlbiteNa(AlSi3O8)
MgMagnesium
Mg ClinochloreMg5Al(AlSi3O10)(OH)8
Mg Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
AlAluminium
Al MilariteK2Ca4Al2Be4Si24O60 · H2O
Al K Feldspar (var: Adularia)KAlSi3O8
Al Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Al Muscovite (var: Illite)K0.65Al2.0[Al0.65Si3.35O10](OH)2
Al ClinochloreMg5Al(AlSi3O10)(OH)8
Al LaumontiteCaAl2Si4O12 · 4H2O
Al ScoleciteCaAl2Si3O10 · 3H2O
Al Heulandite-Ca(Ca,Na)5(Si27Al9)O72 · 26H2O
Al AlbiteNa(AlSi3O8)
Al Amphibole Supergroup (var: Byssolite)AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al PrehniteCa2Al2Si3O10(OH)2
Al Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
SiSilicon
Si MilariteK2Ca4Al2Be4Si24O60 · H2O
Si QuartzSiO2
Si K Feldspar (var: Adularia)KAlSi3O8
Si Quartz (var: Rock Crystal)SiO2
Si SeidozeriteNa4MnZr2Ti(Si2O7)2O2F2
Si Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Si TitaniteCaTi(SiO4)O
Si Muscovite (var: Illite)K0.65Al2.0[Al0.65Si3.35O10](OH)2
Si ClinochloreMg5Al(AlSi3O10)(OH)8
Si LaumontiteCaAl2Si4O12 · 4H2O
Si ScoleciteCaAl2Si3O10 · 3H2O
Si DatoliteCaB(SiO4)(OH)
Si Heulandite-Ca(Ca,Na)5(Si27Al9)O72 · 26H2O
Si AlbiteNa(AlSi3O8)
Si Quartz (var: Smoky Quartz)SiO2
Si Amphibole Supergroup (var: Byssolite)AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si PrehniteCa2Al2Si3O10(OH)2
Si Quartz (var: Gwindel)SiO2
Si Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Si PhenakiteBe2SiO4
Si Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Si Quartz (var: Amethyst)SiO2
PPhosphorus
P FluorapatiteCa5(PO4)3F
SSulfur
S BaryteBaSO4
S ChalcopyriteCuFeS2
S GalenaPbS
S PyriteFeS2
ClChlorine
Cl Amphibole Supergroup (var: Byssolite)AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Cl Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
KPotassium
K MilariteK2Ca4Al2Be4Si24O60 · H2O
K K Feldspar (var: Adularia)KAlSi3O8
K Muscovite (var: Illite)K0.65Al2.0[Al0.65Si3.35O10](OH)2
K MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Ca MilariteK2Ca4Al2Be4Si24O60 · H2O
Ca Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Ca TitaniteCaTi(SiO4)O
Ca FluorapatiteCa5(PO4)3F
Ca LaumontiteCaAl2Si4O12 · 4H2O
Ca ScoleciteCaAl2Si3O10 · 3H2O
Ca DatoliteCaB(SiO4)(OH)
Ca CalciteCaCO3
Ca FluoriteCaF2
Ca Heulandite-Ca(Ca,Na)5(Si27Al9)O72 · 26H2O
Ca ScheeliteCa(WO4)
Ca PrehniteCa2Al2Si3O10(OH)2
Ca Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
TiTitanium
Ti SeidozeriteNa4MnZr2Ti(Si2O7)2O2F2
Ti TitaniteCaTi(SiO4)O
Ti Amphibole Supergroup (var: Byssolite)AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Ti Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
MnManganese
Mn SeidozeriteNa4MnZr2Ti(Si2O7)2O2F2
FeIron
Fe Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Fe ChalcopyriteCuFeS2
Fe PyriteFeS2
Fe HematiteFe2O3
Fe Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
CuCopper
Cu ChalcopyriteCuFeS2
Cu MalachiteCu2(CO3)(OH)2
ZrZirconium
Zr SeidozeriteNa4MnZr2Ti(Si2O7)2O2F2
BaBarium
Ba BaryteBaSO4
WTungsten
W ScheeliteCa(WO4)
PbLead
Pb GalenaPbS

References

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Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Koenigsberger, J.G. (1940) Die zentralalpinen Minerallagerstätten. Wepf und Co. Verlag, Basel.
Labhart, T. (1977) Sammlung Geologischer Führer Nr. 63 - Aarmassiv und Gotthardmassiv. Gebr. Borntraeger, Berlin, Stuttgart, 173 pp.
Jahn, S. (2004) Klassische Weltfundstelle: Val Giuv. Mineralien-Welt, 15(1), 34-61.
Wachtler, M. (Ed.) (2006) Surselva. Kristalle, Klüfte, Cavacristallas. extraLapis Nr. 31. Christian Weise Verlag, München.

Localities in this Region
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