One of the more dramatic specimens, I call the "mushroom" for its appearance: a complete-all-around purple cap perched on matrix. GORGEOUS translucent color when backlit, like grape juice! For whatever reasons, this piece transmits light more clearly than others and so has a richer intensity. The piece is complete on 3 sides, if contacted on the lower periphery.
Attribution: Rob Lavinsky, iRocks.com – CC-BY-SA-3.0
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