Geislingen, Zollernalbkreis

Sand, sandstone, limestone, gagat, and iron ore were the primary products.[6] The Goldhöhle mine was in Erlaheim near Mildersbach, Schwefelkies, in Geislingen. It later collapsed.[10][11] Binsdorf, had a natural stone quarry. The information panels near the Goldhöhle sponsored by the Kreissparkasse. An old story talks about the Sandmann, a hawker for cleaning sand. The idea was born at the Schwäbischer Albverein in Binsdorf. From a 3.5 km mine in Doggererzflöz in Weilheim is wood in the Tuttlinger Fruchtkasten.[12] Steel was produced in Tuttlingen by the Schwäbische Hüttenwerke in Ludwigshal.

The refinery in Harras was closed in 1832.[13] The long, tedious transport with horses limited the amount of income from pyrite mining in Erlaheim. Economic reforms that allowed the construction of new railways made mining the iron ore of that area unprofitable.[14][15] Near Geislingen, black stone (coal) was mined for Operation Desert (German fuel project) on the road to Erzingen.[16][17] Geislingen was also a center for gagat manufacturing. Gagat is broken in Posidonia Shale.[18][19][20]