ICN06 Nelenite on Manganocalcite
Huanggang Mine, Hexigten Banner (Keshiketeng Co.), Ulanhad League (Chifeng Prefecture), Inner Mongolia Autonomous Region, China
12.0x 11.1x 8.2 cm
$850

This is an exceptionally rich nelenite specimen, and an unusually beautiful example from what has become the best-of-species find.

Nelenite is a sillicate mineral that is mostly familiar to New Jersey collectors, as its type locality is in the Franklin mining area.  At Huanggang, it turned up as a brown accessory that was first observed on the early yellow sphalerites.  In almost all cases, it was just an extra coating, yet on this piece it takes center-stage and has greatly improved the appearance of the specimen.

Originally this was a cluster of manganocalcite rhombs.  They were overgrown by a coating of brown nelenite, then a subsequent generation of manganocalcite selectively crystallized over the edges of the earlier rhombs.  The result, as you can see, are brown nelenite-coated rhombs accented by faintly pink manganocalcite, with a larger central rosette.  

Without a doubt, this is the best and most aesthetic nelenite specimen I have seen to date.








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