Derbes calcium sulphate - the red color is caused by small additions of
iron ions.
Location was the Höllgraben near Werfen in the province of Salzburg.
Apparently this source has been exhausted, as no new pieces have appeared on the market in recent years.
Very decorative, large piece - an eye-catcher for any collection.
Weight: 2.20 kilogram
Dimensions: 27 x 17 x 7 cm