WOW! What a rich and well defined sample of classic German proustite. The mining district of Schlema, Saxony is well known in the mineral world for its sharp and fiercy red proustite crystals. This specimen is a complete solid mass of proustite crystals throughout, it certainly was collected in an exceptionally rich ore vein. Individual crystals reach a length up to 3.5 cm. The first picture shows the specimen glowing deeply red in backlight, but even the other pictures in regular led light show a significant red hue, which is even better in the hand. Ex H.-G. Penndorf collection, Dresden, coll.no.811. Two of his labels are still comimg with the piece, stating the piece was found in 1960 in Gang Brahma on 720 meters below sea level.