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Marjolein van Braak · Joined: 28 Aug 2021 Posts: 10

Another mineral that I can't figure out. Some of the green pieces do look like green tourmaline. Google searches led me to actinolite. But neither of these are convincing for me.

If you need more information, ask me.

Volkmar Stingl · Joined: 23 Sep 2012 Posts: 983 Location: Innsbruck

This is most probably a member of the Hornblende group (maybe Actinolite?). In the Tyrolean Alps, these rocks are known as "Hornblende-Garbenschiefer".

Greetings,
Volkmar

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