From the now well-known finds in China that took their place alongside Bunker Hill and Les Farges as "major" for the species - a sizeable and rich specimen from the Marty Zinn collection. This specimen has an interesting bi-colored effect, due to a coating on the crystals on the upper part of the specimen, which contrasts with the more typical color and luster of the crystals around the bottom. This material has of course become a lot more scarce since the end of mining around 2 years back.
Attribution: Rob Lavinsky, iRocks.com – CC-BY-SA-3.0
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