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January 23, 2018, 09:07:53 PM

Author Topic: Tag des offenen Steinbruchs / European Minerals Day  (Read 1426 times)

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Frank de Wit

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Tag des offenen Steinbruchs / European Minerals Day
« Reply #1 on: March 19, 2012, 01:18:25 PM »
Tag des offenen Steinbruchs
http://www.tag-des-offenen-steinbruchs.de/

European Minerals Day
http://www.mineralsday.eu/

13.-15. Mai 2011
dates 2012 not known yet?