Millerite

This specimen is a striking example of Millerite, a rare nickel sulfide, from the renowned Halls Gap locality. The golden, hair-like crystals exhibit the classic swirling or “thread-like” structure, forming delicate, shimmering nests of fine needles across the chalcedony-lined cavity of a silica geode. These intricate, golden fibres crisscross the open vug, creating a captivating display characteristic of this locality.

Millerite specimens like this were collected from a roadcut popular with rockhounds in the 1970s and 1980s but now closed to further access. The millerite needles are nestled securely within the geode, making it suitable for shipping. Specimens from this locality are increasingly rare, and this miniature piece is an exceptional example of the mineral’s unique formation and coloration.