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Where is LGB?

Binn Webcam

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Gemeinde Binn
Binn Regionalmuseum
Faszination Lengenbach
This book, with 192 color pages, has been published to celebrate 50 years (1958-2008) from the exploitation of this unique quarry by various communities... [read more]


Binn Strahlen
Binn mineral show
FM Forum
Lengenbach in MINDAT


Breaking news If you want to be informed about
what is hot in Lengenbach quarry!!!
Mineralogical Magazine

Classic mineral localities described on old postcards in high ressolution

We found in the old postcard market two very interesting postcards which describe Swiss valleys well known for its rich minerals. You could find localities and places as Furka, Göschenental, Vla Rusein, Disentis, Oberalp, Hospental... click here.


Mineralogical Magazine

Dalnegroite, Tl5-xPb2x(As, Sb)21xS34, a new thallium sulphosalt from Lengenbach quarry, Binntal, Switzerland

(IMA 2009-058), ideally Tl4Pb2(As12Sb8){Sigma}20S34, is a new mineral from Lengenbach, Binntal, Switzerland. It occurs as anhedral to subhedral grains up to 200 µm across, closely associated with realgar, pyrite... click here.



VFL meeting and some info about Binn Mineralienbörse, a report by our friend Claudio Albertini.

Some pictures and comments sent by Claudio Albertini. Armenite, photoshow, film about Binn and much more... click here.

AVALANCHES in the Lengenbach quarry area.

During last winter some avalanches have created problems in the Lengenbach quarry area. If you want to see some spectacular photos which have been sent by Ralph Cannon, click here.
Richard Harrison SOLLY
R. H. Solly (1851-1925)

PHOTOGRAPHIC EXHIBITION in BINN: Binntal and the Lengenbach quarry in the beginning of 20th Century.

From mid-June to mid-October will be held in the hall of the Regionalmuseum of Binn an important photographic exhibition based on a recovered old photo-album of R.H. Solly. Organized by Claudio Albertini (Omegna, IT) and Prof. Dr. Stefan Graeser (Basel, CH)...
[read more]

The Lengenbach Quarry (LGB) is located in the Binn Valley (Valais, Switzerland) and it is famous among the mineralogist community for its unusual sulfosalt specimens.
These minerals have been highly appreciated in the past and also today, due to various factors: the rarity and the diversity of the mineral species collected, the notable perfection of crystals... and also for its esthetic contrast with the snowy Dolomite matrix.
For nearly 200 years, many mineralogists from Europe have devoted a large number of efforts to study the peculiar mineralization of Lengenbach. Today, the geology of the quarry is known in detail as well as the structure of the crystalline sulfosalts collected there. The systematic studies of the collected minerals have contributed to the Mineralogy with a large number of new minerals never described before. Lengenbach is Type Locality for 28 accepted new minerals, 27 new sulfosalts and 1 new phosphate (2008).
This great scientific search effort has been made possible in large part by the foundation, in the year 1958, of the Lengenbach Working Community (Arbeitsgemeinschaft Lengenbach) which has published a good number of articles, notes, books, etc with Lengenbach as the reference.

Sphalerite with Galena
Photo Frank de Wit (2010)
Hutchinsonite and Realgar
Hutchinsonite and Realgar.
Photo and Coll. Stephan
Wolfsried (2006)


Where is the quarry?

The Dolomite deposit of LGB is located in the Binn Valley (other names of this valley are Binntal, Binnatal, Binnathal, Binnenthal), a small valley in the southwest of Switzerland in the Swiss canton of Valais. To its south lies Italy.
To get there you must take the road from Brig to Andermatt, and between Lax and Fiesch you must turnoff direction Ernen and Binn.
From Binn, after the long tunnel, you must get Imfeld. From this small village, close to the Pius restaurant, there is a single road to the quarry but it is closed to the unauthorized motor vehicles traffic. Walking is 30 minutes to the Lengenbach Quarry.
Due to its location and its fully Alpine appeal, 1.660 meters, the mine remains closed from autumn to spring, depending on the snow period. However, the quarry is fenced and the public is only allowed to look for minerals in the dump in front of the quarry.


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