Superb set of amethyst crystals very colored at each end, smoked elsewhere. Some of the crystals are also cut.
Very nice quality.
Amethyst specimen from Wasenhorn (Punta Terrarossa), south of Brig in the Valais region of Switzerland.
From the collection of Eric Asselborn.
Here is a video of these very good amethyst quartz crystals from Switzerland:
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