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Topaz occurrences, Renastga Valley, Ilanz/Glion, Surselva Region, Grisons, Switzerlandi
Regional Level Types
Topaz occurrencesOccurrence
Renastga ValleyValley
Ilanz/GlionMunicipality
Surselva RegionRegion
GrisonsCanton
SwitzerlandCountry

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Latitude & Longitude (WGS84):
46° 44' 13'' North , 9° 13' 46'' East
Latitude & Longitude (decimal):
46.73722,9.22972
GeoHash:
G#: u0q9fh2bh
GRN:
N32E05
Type:
Occurrence
Köppen climate type:
ET : Tundra
Nearest Settlements:
PlacePopulationDistance
Pitasch120 (2017)1.1km
Seewis221 (2017)3.2km
Luven234 (2017)3.5km
Morissen243 (2017)3.8km
Ilanz2,321 (2017)4.5km
Mindat Locality ID:
188628
Long-form identifier:
mindat:1:2:188628:6
GUID (UUID V4):
8bfb767e-787c-4de1-82a5-2bcb9080f0cb
Other/historical names associated with this locality:
Lugnez
Name(s) in local language(s):
Topasfundstelle, Val Renastga, Val Lugnez (Val Lumnezia), Graubünden (Grisons; Grischun), Schweiz (Suisse; Svizzera)


Quartz clefts (two types, only the second type carries topaz) in a strongly tectonically overprinted and metamorphosed Triassic dolomite layer.
In 1983 H. Luginbühl located topaz in quartz-bearing fissures. In 1987 during a severe storm the location was partly buried by a rock slide. In 2018 more topaz was found by Meyer & Casutt (2020) in at least two other unspecified outcrops in the "Riein area", thus probably also in the Renastga Valley.

Note: Described as being in "Lugnez" (= Lumnezia), but actually in Ilanz/Glion.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


18 valid minerals.

Rock Types Recorded

Note: 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:

ⓘ 'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
ⓘ Aragonite
Formula: CaCO3
ⓘ Azurite
Formula: Cu3(CO3)2(OH)2
ⓘ Baryte
Formula: BaSO4
ⓘ Bournonite
Formula: PbCuSbS3
ⓘ Calcite
Formula: CaCO3
ⓘ Cerussite
Formula: PbCO3
ⓘ 'Chlorite Group'
ⓘ Dickite
Formula: Al2(Si2O5)(OH)4
Habit: Minute scaly crystals
Colour: White
ⓘ Dolomite
Formula: CaMg(CO3)2
ⓘ Galena
Formula: PbS
ⓘ Goyazite
Formula: SrAl3(PO4)(PO3OH)(OH)6
ⓘ Malachite
Formula: Cu2(CO3)(OH)2
ⓘ Meneghinite
Formula: Pb13CuSb7S24
ⓘ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Pyrite
Formula: FeS2
ⓘ Quartz
Formula: SiO2
ⓘ 'Rhombohedral Carbonate'
Formula: (Ca/Mg/Fe/Mn etc)CO3
ⓘ Rutile
Formula: TiO2
ⓘ Sphalerite
Formula: ZnS
ⓘ 'Tetrahedrite Subgroup'
Formula: Cu6(Cu4C2+2)Sb4S12S
ⓘ Topaz
Formula: Al2(SiO4)(F,OH)2

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘSphalerite2.CB.05aZnS
ⓘGalena2.CD.10PbS
ⓘPyrite2.EB.05aFeS2
ⓘBournonite2.GA.50PbCuSbS3
ⓘ'Tetrahedrite Subgroup'2.GB.05Cu6(Cu4C2+2)Sb4S12S
ⓘMeneghinite2.HB.05bPb13CuSb7S24
Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
ⓘRutile4.DB.05TiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘDolomite5.AB.10CaMg(CO3)2
ⓘAragonite5.AB.15CaCO3
ⓘCerussite5.AB.15PbCO3
ⓘAzurite5.BA.05Cu3(CO3)2(OH)2
ⓘMalachite5.BA.10Cu2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘBaryte7.AD.35BaSO4
Group 8 - Phosphates, Arsenates and Vanadates
ⓘGoyazite8.BL.10SrAl3(PO4)(PO3OH)(OH)6
Group 9 - Silicates
ⓘTopaz9.AF.35Al2(SiO4)(F,OH)2
ⓘMuscovite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘDickite9.ED.05Al2(Si2O5)(OH)4
Unclassified
ⓘ'Chlorite Group'-
ⓘ'Apatite'-Ca5(PO4)3(Cl/F/OH)
ⓘ'Rhombohedral Carbonate'-(Ca/Mg/Fe/Mn etc)CO3

List of minerals for each chemical element

HHydrogen
Hⓘ AzuriteCu3(CO3)2(OH)2
Hⓘ DickiteAl2(Si2O5)(OH)4
Hⓘ GoyaziteSrAl3(PO4)(PO3OH)(OH)6
Hⓘ MalachiteCu2(CO3)(OH)2
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Hⓘ TopazAl2(SiO4)(F,OH)2
Hⓘ ApatiteCa5(PO4)3(Cl/F/OH)
CCarbon
Cⓘ AragoniteCaCO3
Cⓘ AzuriteCu3(CO3)2(OH)2
Cⓘ CalciteCaCO3
Cⓘ CerussitePbCO3
Cⓘ DolomiteCaMg(CO3)2
Cⓘ MalachiteCu2(CO3)(OH)2
Cⓘ Rhombohedral Carbonate(Ca/Mg/Fe/Mn etc)CO3
OOxygen
Oⓘ AragoniteCaCO3
Oⓘ AzuriteCu3(CO3)2(OH)2
Oⓘ BaryteBaSO4
Oⓘ CalciteCaCO3
Oⓘ CerussitePbCO3
Oⓘ DickiteAl2(Si2O5)(OH)4
Oⓘ DolomiteCaMg(CO3)2
Oⓘ GoyaziteSrAl3(PO4)(PO3OH)(OH)6
Oⓘ MalachiteCu2(CO3)(OH)2
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Oⓘ QuartzSiO2
Oⓘ RutileTiO2
Oⓘ TopazAl2(SiO4)(F,OH)2
Oⓘ ApatiteCa5(PO4)3(Cl/F/OH)
Oⓘ Rhombohedral Carbonate(Ca/Mg/Fe/Mn etc)CO3
FFluorine
Fⓘ TopazAl2(SiO4)(F,OH)2
Fⓘ ApatiteCa5(PO4)3(Cl/F/OH)
MgMagnesium
Mgⓘ DolomiteCaMg(CO3)2
Mgⓘ Rhombohedral Carbonate(Ca/Mg/Fe/Mn etc)CO3
AlAluminium
Alⓘ DickiteAl2(Si2O5)(OH)4
Alⓘ GoyaziteSrAl3(PO4)(PO3OH)(OH)6
Alⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Alⓘ TopazAl2(SiO4)(F,OH)2
SiSilicon
Siⓘ DickiteAl2(Si2O5)(OH)4
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Siⓘ QuartzSiO2
Siⓘ TopazAl2(SiO4)(F,OH)2
PPhosphorus
Pⓘ GoyaziteSrAl3(PO4)(PO3OH)(OH)6
Pⓘ ApatiteCa5(PO4)3(Cl/F/OH)
SSulfur
Sⓘ BaryteBaSO4
Sⓘ BournonitePbCuSbS3
Sⓘ GalenaPbS
Sⓘ MeneghinitePb13CuSb7S24
Sⓘ PyriteFeS2
Sⓘ SphaleriteZnS
Sⓘ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
ClChlorine
Clⓘ ApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Caⓘ AragoniteCaCO3
Caⓘ CalciteCaCO3
Caⓘ DolomiteCaMg(CO3)2
Caⓘ ApatiteCa5(PO4)3(Cl/F/OH)
Caⓘ Rhombohedral Carbonate(Ca/Mg/Fe/Mn etc)CO3
TiTitanium
Tiⓘ RutileTiO2
MnManganese
Mnⓘ Rhombohedral Carbonate(Ca/Mg/Fe/Mn etc)CO3
FeIron
Feⓘ PyriteFeS2
Feⓘ Rhombohedral Carbonate(Ca/Mg/Fe/Mn etc)CO3
CuCopper
Cuⓘ AzuriteCu3(CO3)2(OH)2
Cuⓘ BournonitePbCuSbS3
Cuⓘ MalachiteCu2(CO3)(OH)2
Cuⓘ MeneghinitePb13CuSb7S24
Cuⓘ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
ZnZinc
Znⓘ SphaleriteZnS
SrStrontium
Srⓘ GoyaziteSrAl3(PO4)(PO3OH)(OH)6
SbAntimony
Sbⓘ BournonitePbCuSbS3
Sbⓘ MeneghinitePb13CuSb7S24
Sbⓘ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
BaBarium
Baⓘ BaryteBaSO4
PbLead
Pbⓘ BournonitePbCuSbS3
Pbⓘ CerussitePbCO3
Pbⓘ GalenaPbS
Pbⓘ MeneghinitePb13CuSb7S24

Other Regions, Features and Areas containing this locality

Eurasian PlateTectonic Plate
EuropeContinent

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 to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

www.valser-kristallkeller.ch (n.d.) https://www.valser-kristallkeller.ch/funde/lugnez/
(n.d.)
Soom, M., Armbruster, Th. & Stalder, H. A. (1988): OH-rich topaz from alpine fissures in Triassic dolomites near Lugnez, Graubünden (Mesozoic cover of Gotthard Massif, Swiss Alps). Schweizerische mineralogische und petrographische Mitteilungen 68, 141–155.
Luginbühl, H. (1998): Topas vom Lugnez GR. Mineralienfreund, 36 (1), 8-10.
Stalder,H. A., Wagner, A., Graeser, S. & Stuker, P. (1998): Mineralienlexikon der Schweiz, p. 48, 195 and 271.
Meyer, R. & Casutt, H. (2020): Neuer Topasfund aus dem Lugnez. Schweizer Strahler, 54 (2), 2-7 (in German and French).
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