Droninoite
Droninoite is an IMA-recognized mineral species in the halide class, with the chemical formula Ni₆Fe³⁺₂Cl₂(OH)₁₆·4H₂O.
It crystallizes in the hexagonal crystal system (space group R-3m). It is a member of the Hydrotalcite structural group.
Key properties: Mohs hardness 1–1.5; specific gravity 2.857.
IMA symbol Dr, IMA status: approved, named in 2008.
Found in a fragment of a weathered iron meteorite.
It is found associated with Taenite, violarite, troilite, chromite, goethite, lepidocrocite, nickelbischofite, amorphous Fe3+ hydroxides.
The name refers to the village of Dronion, Russia near which the sample was collected.
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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