This is a large specimen of pale pink kottigite crystals smothering a rock matrix, crystals which are rare for the locality. This long resided in the personal reference collection of Czech classics of Josef Vajdak, a rare species mineral dealer from New York, now 80 years old. Josef says this find was in the 1950s, and considered this a very good example of this rarity for the locale.
Attribution: Rob Lavinsky, iRocks.com – CC-BY-SA-3.0
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