Brontesite
Brontesite is an IMA-recognized mineral species in the organic mineral class, with the chemical formula (NH₄)₃PbCl₅.
It crystallizes in the orthorhombic crystal system (space group Pnma).
Key properties: specific gravity 2.72; White streak; Vitreous luster.
IMA symbol Bte, IMA status: approved, named in 2008.
A product of fumarolic activity.
It is found associated with Bismuthinite, godovikovite, demicheleite-(Cl), demicheleite-(Br), alunite.
The name refers to Brontes, one of the Cyclopes and a son of Uranus, helpers of the Greek god of fire whose workshops were alleged to be located at Vulcano.
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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