Part of a 60kg gift from a strahler from the Stolberg area was some limited material from Untermaubach. I have never been there, so the only thing I can do is repeat the text of Midat.org: Triassic greywacke-quartz conglomerates including lead and minor zinc and copper ores, covered by a layer of sandstone. The deposit was worked from an open cut for several centuries and finally abandoned in 1969. Today, after some decades of use for dumping rubbish, the site is completely backfilled.
Located 2 km NNW of Untermaubach and about 7 km SW of Düren.
Malachite FoV 4,5mm
Azurite FoV 4,5mm 
FoV 2,2mm 
FoV 2,2mm 
FoV 2,2mm 
FoV 2,2mm
Chalcopyrite
Malachite
Dolomite Chalcopyrite 
Galenite 
Azurite 
Jarosite, Malachite
Galena 
Galena Chalcopyrite Malachite FoV 3,3mm
FoV 4,5mm Malachite
Dolomite, Chalcopyrite, Malachite FoV 2,2mm
Aragonite FoV 5mm
Galena FoV 4,5mm 
Quartz FoV 2,2mm 
Quartz FoV 2,2mm
