Description

Millerite is a nickel sulfide (with traces of cobalt, iron and copper) that appears as a ball of flexible fibrorad needles, sometimes with multicolored iridescence.

Here we have magnificent, fine bunches of millerite fibers, a mineral in a small geode of bluish mamelony chalcedony.

From Hall’s Gap in Kentucky, USA.

Specimen from the Hubin collection in Neupré, Belgium, delivered with label.

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