
Coccinite, from Backofen Mine, Landsberg, Palatinate, Rhineland-Palatinate, Germany — Photo: David Hospital - www.purple-sky-minerals.com · CC BY-SA 3.0
Coccinite
A rare red mercury iodide first found at Casas Viejas, Mexico.
Intro adapted from Wikipedia (CC BY-SA).
Coccinite is an IMA-recognized mineral species in the halide class, with the chemical formula HgI₂.
It crystallizes in the tetragonal crystal system (space group P4_2/nmc).
IMA symbol Cci, grandfathered status — known before the IMA’s founding, named in 1845.
Index entry. This entry combines official IMA/RRUFF species data with published physical-property data and a Wikipedia introduction — a full written entry hasn’t been published yet.
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