Fluorocronite
Fluorocronite is an IMA-recognized mineral species in the halide class, with the chemical formula PbF₂.
It crystallizes in the cubic crystal system (space group Fm3m). It is a member of the Fluorite structural group.
Key properties: Mohs hardness 3–4; specific gravity 7.619; White streak; Pearly luster.
IMA symbol Flc, IMA status: approved, named in 2010.
A weathering product of hydrothermal Sn-Ag polymetallic veins.
It is found associated with Cassiterite, quartz, anglesite, cerussite, galena, hocartite, bindheimite, chlorargyrite.
The name refers to the composition, fluoro (for fluorine) and cron (the alchemical name for lead).
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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