Cervelleite
Cervelleite is an IMA-recognized mineral species in the sulfide class, with the chemical formula Ag₄TeS.
It crystallizes in the cubic crystal system.
Key properties: specific gravity 8.53; Metallic luster.
IMA symbol Cvl, IMA status: approved, named in 1986.
Found in fracture fillings in highly altered and silicified rhyolite vitrophyre in a hydrothermal Au–Te deposit.
It is found associated with Silver, acanthite, hessite, benleonardite, pyrite, sphalerite, dolomite, quartz.
The mineral was named to honor Dr. Bernard Cervelle (1940–), French mineralogist, University of Paris, Paris, France, for his work in ore microscopy.
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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