The Gem Mines in the Steinkaulenberg in Idar-Oberstein.

Today we traveled with several others to Idar Oberstein, about an hour and 45 minutes away.  After parking, it was a short walk through a forested area to the entrance to the mine.   Along the way we saw examples of different types of stones placed along the path with markers.

At the entrance, we found a gift shop, a ticket office and a place to get a snack.  They told us 300-500 visitors come here every day!  There were lots of families here today, in fact we met an LDS family from Chile who saw our nametags and stopped to say hello.

The tour was interesting.  Millions of years ago a volcano erupted here and as the lava cooled, there were bubbles or pockets of gas that, over the millennia, became geodes.  You never know what type of crystal will be in the geode until you open it.  The ones here were mostly agate, amethyst, smoky quartz, calcite and some others.
We had a good German guide and also headsets with an English channel to explain the evolution of the gemstones industry here.  The mining here stopped in the 1870s when farmers from here went to Brazil to find a better living, and there they found geodes lying on the ground in the fields.  They came with mining experience and the Brazilians didn’t know anything about geodes or how to process the gems inside.  So the Germans filled freight ships with loads of stone to send back to the gem cutters here.  It became a great industry for both countries.

In this mine, they made all the passages big enough for guests to walk through (the miners crawled), in fact, it took one man 1 year to chip out 1 meter of stone one meter high.  It was rough work.  The miners only lived to be 35-45 years old.  They worked in the dark with oil lamps, trying to find geodes in the stone, then they’d chip them out and sent them whole to the cutters in town.

Here’s this mine today with the path we followed.  At the top are the natural lakes (pure water drips down through the stone from above).

There’s a fun video of walking through the mine here:

As we walked through this interesting place, we saw lots of geodes embedded in the stone and also others that had been placed here to show us the various types of gems found here.

We learned that miners would follow veins in the stone, marked by the geodes and the shape of the geodes that pointed the direction of the lava flow.

Here’s the crystal clear lake:

The gemstone below looks like raw meat:

The tour lasted about an hour.  It was so interesting.  I learned things I didn’t know before.

After this mine experience we drove down into town and spent the rest of the day wandering there.

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Author: Ann Laemmlen Lewis

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