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T607 - Dioptase in Quartz $ 1500 SOLD Kaokaveld, Namibia miniature - 4.7 x 3.0 x 3 cm Rare specimen of Dioptase crystals included in Quartz. These are not often seen and it's the only one I've ever owned. There were a handful of specimens from the Congo with slightly bigger Quartz crystals and included Dioptase crystals that sold in the $25K-$35K range. In this specimen, the Dioptase crystals settled on an earlier generation of yellow colored Quartz (which I understand is caused by Sulfur). ©2010-2018 Marin Mineral |