SUPPORT US. If is important to you, click here to donate to our Fall 2019 fundraiser!
Log InRegister
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsBooks & Magazines
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryMineral Photography

Isenwegg, Wasen Alp, Ganter valley, Simplon pass area, Brig, Wallis (Valais), Switzerlandi
Regional Level Types
Isenwegg- not defined -
Wasen AlpMountain
Ganter valleyValley
Simplon pass areaArea
Brig- not defined -
Wallis (Valais)- not defined -

This page is currently not sponsored. Click here to sponsor this page.
Lock Map
Name(s) in local language(s):Isenwegg, Wasenalp, Gantertal, Simplonpassgebiet, Brig, Wallis (Valais), Schweiz (Suisse; Svizzera)
Latitude & Longitude (WGS84): 46° 16' 5'' North , 8° 5' 8'' East
Latitude & Longitude (decimal): 46.26833,8.08583
GeoHash:G#: u0jxpyzut
Köppen climate type:Dfc : Subarctic climate
Nearest Settlements:
Termen793 (2016)8.2km
Brig5,000 (2013)9.5km
Bitsch802 (2013)9.6km
Naters7,552 (2017)9.8km
Mörel477 (2016)10.3km

A place with Ba-rich metamorphic rocks and minerals on the north slope of Wasenhorn mountain, close to the Wasen Alp. Located in the upper Ganter valley, a small rift on the slopes northeast of the Simplon pass, just south of Berisal.

Regions containing this locality

Eurasian Plate (Eurasia Plate)Plate
The Alps, EuropeMountain Range

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List

12 valid minerals. 2 (TL) - type locality of valid minerals.

Detailed Mineral List:

Formula: BaCa2Al6Si9O30 · 2H2O
Formula: Ba(Al2Si2O8)
'Chlorite Group'
Formula: Al2(Si2O5)(OH)4
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Ganterite (TL)
Formula: (Ba,Na,K)(Al,Mg)2(AlSi3O10)(OH)2
Type Locality:
Formula: CaAl2(Al2Si2O10)(OH)2
Martinandresite (TL)
Formula: Ba2(Al4Si12O32)·10H2O
Type Locality:
Formula: KAl2(AlSi3O10)(OH)2
Muscovite var: Barian Muscovite
Formula: (K,Ba)(Al,Mg)2(AlSi3O10)(OH)2
Formula: SiO2
Formula: TiO2
Formula: Zr(SiO4)
Formula: {Ca2}{Al3}(Si2O7)(SiO4)O(OH)

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Group 9 - Silicates
Armenite9.CM.05BaCa2Al6Si9O30 · 2H2O
Ganterite (TL)9.EC.15(Ba,Na,K)(Al,Mg)2(AlSi3O10)(OH)2
var: Barian Muscovite9.EC.15(K,Ba)(Al,Mg)2(AlSi3O10)(OH)2
Unclassified Minerals, Rocks, etc.
'Chlorite Group'-
Martinandresite (TL)-Ba2(Al4Si12O32)·10H2O

List of minerals arranged by Dana 8th Edition classification

Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in >[6] coordination
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)
Group 63 - CYCLOSILICATES Condensed Rings
Condensed Rings (Milarite - Osumilite group)
Armenite63.2.1b.1BaCa2Al6Si9O30 · 2H2O
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 1:1 layers
Sheets of 6-membered rings with 2:1 layers
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Unclassified Minerals, Mixtures, etc.
'Chlorite Group'-
Ganterite (TL)-(Ba,Na,K)(Al,Mg)2(AlSi3O10)(OH)2
Martinandresite (TL)-Ba2(Al4Si12O32)·10H2O
var: Barian Muscovite

List of minerals for each chemical element

H Ganterite(Ba,Na,K)(Al,Mg)2(AlSi3O10)(OH)2
H MartinandresiteBa2(Al4Si12O32)·10H2O
H ArmeniteBaCa2Al6Si9O30 · 2H2O
H Zoisite{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
H Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
H Muscovite (var: Barian Muscovite)(K,Ba)(Al,Mg)2(AlSi3O10)(OH)2
H MargariteCaAl2(Al2Si2O10)(OH)2
H MuscoviteKAl2(AlSi3O10)(OH)2
H DickiteAl2(Si2O5)(OH)4
O Ganterite(Ba,Na,K)(Al,Mg)2(AlSi3O10)(OH)2
O MartinandresiteBa2(Al4Si12O32)·10H2O
O ArmeniteBaCa2Al6Si9O30 · 2H2O
O Zoisite{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
O QuartzSiO2
O Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
O ZirconZr(SiO4)
O CelsianBa(Al2Si2O8)
O Muscovite (var: Barian Muscovite)(K,Ba)(Al,Mg)2(AlSi3O10)(OH)2
O RutileTiO2
O MargariteCaAl2(Al2Si2O10)(OH)2
O MuscoviteKAl2(AlSi3O10)(OH)2
O DickiteAl2(Si2O5)(OH)4
Na Ganterite(Ba,Na,K)(Al,Mg)2(AlSi3O10)(OH)2
Mg Muscovite (var: Barian Muscovite)(K,Ba)(Al,Mg)2(AlSi3O10)(OH)2
Al Ganterite(Ba,Na,K)(Al,Mg)2(AlSi3O10)(OH)2
Al MartinandresiteBa2(Al4Si12O32)·10H2O
Al ArmeniteBaCa2Al6Si9O30 · 2H2O
Al Zoisite{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Al Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Al CelsianBa(Al2Si2O8)
Al Muscovite (var: Barian Muscovite)(K,Ba)(Al,Mg)2(AlSi3O10)(OH)2
Al MargariteCaAl2(Al2Si2O10)(OH)2
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al DickiteAl2(Si2O5)(OH)4
Si Ganterite(Ba,Na,K)(Al,Mg)2(AlSi3O10)(OH)2
Si MartinandresiteBa2(Al4Si12O32)·10H2O
Si ArmeniteBaCa2Al6Si9O30 · 2H2O
Si Zoisite{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Si QuartzSiO2
Si Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Si ZirconZr(SiO4)
Si CelsianBa(Al2Si2O8)
Si Muscovite (var: Barian Muscovite)(K,Ba)(Al,Mg)2(AlSi3O10)(OH)2
Si MargariteCaAl2(Al2Si2O10)(OH)2
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si DickiteAl2(Si2O5)(OH)4
K Ganterite(Ba,Na,K)(Al,Mg)2(AlSi3O10)(OH)2
K Muscovite (var: Barian Muscovite)(K,Ba)(Al,Mg)2(AlSi3O10)(OH)2
K MuscoviteKAl2(AlSi3O10)(OH)2
Ca ArmeniteBaCa2Al6Si9O30 · 2H2O
Ca Zoisite{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Ca Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Ca MargariteCaAl2(Al2Si2O10)(OH)2
Ti RutileTiO2
Fe Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Zr ZirconZr(SiO4)
Ba Ganterite(Ba,Na,K)(Al,Mg)2(AlSi3O10)(OH)2
Ba MartinandresiteBa2(Al4Si12O32)·10H2O
Ba ArmeniteBaCa2Al6Si9O30 · 2H2O
Ba CelsianBa(Al2Si2O8)
Ba Muscovite (var: Barian Muscovite)(K,Ba)(Al,Mg)2(AlSi3O10)(OH)2

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on


ID: 2346834
Metamorphe Gesteine, meist Metasedimente

Age: Anthropocene ( Ma)

Lithology: Gneiss and mica schist

Reference: Geological Institute. Geological Map of Switzerland 1:500,000. isbn: 3906723399. University of Bern. [49]

Paleozoic - Precambrian
251.902 - 4000 Ma

ID: 3148772
Penninic basement, Penninic nappes, Austroalpine nappes, Southern Alpes

Age: Eoarchean to Triassic (251.902 - 4000 Ma)

Description: medium grade metamorphic

Lithology: Gneiss

Reference: Asch, K. The 1:5M International Geological Map of Europe and Adjacent Areas: Development and Implementation of a GIS-enabled Concept. Geologisches Jahrbuch, SA 3. [147]

Late Paleozoic
251.902 - 358.9 Ma

ID: 3192871
Paleozoic intrusive rocks

Age: Phanerozoic (251.902 - 358.9 Ma)

Comments: Alps

Lithology: Intrusive igneous rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Data and map coding provided by, used under Creative Commons Attribution 4.0 License


Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Graeser S., Hetherington C.J., Gieré R. (2003) Ganterite, a new barium-dominant analogue of muscovite from the Berisal Complex, Simplon Region, Switzerland. The Canadian Mineralogist: 41: 1271-1280.
Hetherington C.J., Giere, R., Graeser, S. (2003) Composition of barium-rich white micas from the Berisal Complex, Simplon Region, Switzerland. The Canadian Mineralogist: 41: 1281-1291.
Graeser, S., Hetherington, C.J. (2004) Ganterit - ein neues Mineral aus den Walliser Bergen. Lapis: 29(2): 37-40.
Weiß, S. (2016) Seltener "Kollege" des Milarits: Armenit von der Wasenalp, Simplongebiet, Schweiz. Lapis: 41(7-8): 40-48.
Chukanov, N.V., Zubkova, N.V., Meisser, N., Ansermet, S., Weiss, S., Pekov, I.V., Belakovskiy, D.I., Vozchikova, S.A., Britvin, S.N., Dmitry Yu. Pushcharovsky, D.Yu (2017): Martinandresite, Ba2(Al4Si12O32)·10H2O, a new zeolite from Wasenalp, Switzerland. Mineralogy and Petrology, 44: 511–521

This page contains all mineral locality references listed on 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 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.
Mineral and/or Locality is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Public Relations by Blytheweigh.
Copyright © and the Hudson Institute of Mineralogy 1993-2019, except where stated. Most political location boundaries are © OpenStreetMap contributors. relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: August 22, 2019 06:06:36 Page generated: December 29, 2018 21:33:07
Go to top of page