One of the better Sphalerites we have seen from Lengenbach. A deep golden yellow-brown Sphalerite crystal to 7mm embedded in sugary white Quartzite matrix with minor Pyrite.
Although the Sphalerite crystal is partial, it's redeemed by the superb luster and color and because it has a tag from the 'Naturhistorisches Museum Bern' with a corresponding catalog number 9164 glued to the bottom of the specimen.