polydymite


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polydymite

[pə′lid·ə‚mīt]
(mineralogy)
Ni3S4 A mineral of the linnaeite group consisting of nickel sulfide.
References in periodicals archive ?
Less well known, however, are the minerals that have been exposed in limestone quarries in west-central Illinois, including display-quality specimens of twinned calcite and the uncommon minerals violarite and polydymite.
The polydymite occurs included in calcite, as curved filaments from which radiate short, densely distributed blue-black needles.
JOINT COMMITTEE ON POWDER DIFFRACTON STANDARDS (1974) Selected Powder Diffraction Data for Minerals: Millerite, polydymite and violarite.
There, it is associated with cinnabar, native mercury, sphalerite, tennantite, chalcopyrite, polydymite and pyrite.
Green gaspeite was tentatively identified by XRD as a constituent of a yellow-green secondary coating (mostly an unnamed Ni-Fe sulfate: see below) on pentlandite and polydymite.
Polydymite was identified by XRD as metallic gray material associated with pentlandite.