Zaccariniite
Zaccariniite is an IMA-recognized mineral species in the sulfosalt class, with the chemical formula RhNiAs.
It crystallizes in the tetragonal crystal system (space group P4/nmm).
Key properties: Mohs hardness 3.5–4; specific gravity 10.09; Gray streak; Metallic luster.
IMA symbol Zcr, IMA status: approved, named in 2011.
A low temperature mineral developed during alteration of ophiolite, now in heavy- mineral concentrate derived from ophiolitic chromitite.
It is found associated with Garutiite, hexaferrum, Ru-Os-Ir-Fe alloys, Ru-Os-Ir-Fe oxygenated compounds, chromite.
The mineral was named to honor Professor Federica Zaccarini (b. 1962), University of Leoben, Austria.
Index entry. This entry combines official IMA/RRUFF species data with published physical-property data — a full written entry hasn’t been published yet.
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