Jamborite ps. Millerite - image 1
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Jamborite ps. Millerite

$2,500.00

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Jamborite is an extremely rare, bright green, nickel-cobalt sulfate hydrate and is often an alteration product of Millerite and found only at a few localities worldwide. Hall's Gap, Kentucky is certainly known for its Millerite, however, Jamborite pseudomorphs after Millerite are rare here but considered best of species - and this is an absolutely excellent example! This showy and excellent piece has a relatively large vug about 3.3 cm across at its widest that is lined with both yellow-green Jamborite needles as pseudomorphs of Millerite and a small amount of unaltered to slightly altered, brassy yellow needles of Millerite. Both the Jamborite and Millerite are from 1 to 1.5 cm in length and associated with contrasting Quartz and Dolomite that line the interior of the vug. The vug is hosted in a gray limestone matrix. Rob used to collect here in the mid 1980s as a teenager and can attest to the difficulty of finding good specimens (it is a road cut, and collecting is illegal and prohibited now due to traffic).

Product details

SpeciesMillerite
SizeSmall Cabinet
Dimensions6.8 x 5.2 x 3.4 cm
Listed on03/07/2025
SKURARE25-056

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Millerite
Mineral guide
Learn about Millerite
gold, needle-like crystals forming delicate sprays; prized for lustrous acicular bundles, fragility, and top localities yielding fine specimens.
Millerite
Regional guide
Millerite from Halls Gap, Kentucky, USA
from Halls Gap, Kentucky — brassy NiS needle sprays in large geodes with white chalcedony lining; locality prized by collectors.
    Jamborite ps. Millerite - Halls Gap, Kentucky, USA