Calcite and Duftite - image 1

Calcite and Duftite

Unknown Owner
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Interconnecting mounds of sharp, stepped Calcite rhombohedrons compose the majority of this massive specimen, weaving in every direction and covered in a thin layer of olive-green Duftite. Each of the Calcite crystals are colorless, have a pearly-shine, and translucent to transparent, and backlights very well with the Duftite coating. The Duftite is covered with thousands of scintillating microcrystals. This is a classic and well-known Tsumeb combination, and Tsumeb has some of the finest Duftite examples in the world, which doesn't occur in such significant amounts anywhere else. Under a strong shortwave UV light, the Calcite strongly fluoresces a fiery pinkish-red color. This piece comes with a custom acrylic base.

Product details

SizeLarge Cabinet
Dimensions22.0 x 30.0 x 5.5 cm
Added on06/14/2025

Known provenance

DateCollectorAcquisition price
03/2025Unknown Owner$4,000.00
purchased from Heritage Auctions (Dan Kennedy's collection)
Dan KennedNot disclosed

Learn more

Calcite
Mineral guide
Learn about Calcite
diverse shapes, colors, and optical quirks; widely available yet scarce elite pieces from Elmwood and Charcas drive collecting value and display.
Regional guide
Calcite from Tsumeb
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