Acceso a Foro FMF
Guía de uso de Galería FMF
...in 1845 man found out that the material is quite suitable for staining. With the help of various chemical substances in a rather complicated procedure the famous "German Lapis" came into being. Most of the rings, necklaces, brooches, even ashtrays and clocks were exported to the USA. The jasper mining ended in the 1970s. (Author: Andreas Gerstenberg)
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