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Formula: NiBi3+O(AsO4)
Arsenate of nickel and
bismuth
Crystal System: Triclinic
Specific gravity: 6.715 calculated
Hardness: 1 to 2
Streak: Pale orange-brown
Colour: Orange-brown to deep golden brown
Luminescence: No fluorescence under UV
Environments
Paganoite was approved in 1999 but to date (October 2024) it has been reported only from the type locality.
Localities
At the type locality, Johanngeorgenstadt, Erzgebirgskreis, Saxony, Germany, paganoite was found on a single
nickeline-veined quartz specimen.
It occurs as isolated orange-brown to deep golden brown crystals and crystal aggregates which are always intimately
associated with aerugite; additional associations include
bunsenite, xanthiosite,
rooseveltite, native bismuth
and two undefined arsenates. Individual prismatic crystals are subhedral to
euhedral, elongate with a length-to-width ratio of 3:1, and average 0.3 mm in longest dimension
(EJM 13.1.167–175).
Paganoite from Johanngeorgenstadt -
Image
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