Wayneburnhamite
Wayneburnhamite is an IMA-recognized mineral species in the silicate class, with the chemical formula Pb₉Ca₆(Si₂O₇)₃(SiO₄)₃.
It crystallizes in the hexagonal crystal system (space group P-6). It is a member of the Ganomalite structural group.
Key properties: Mohs hardness 3.5; specific gravity 5.271; White streak; Vitreous to resinous luster; optically uniaxial.
IMA symbol Wbh, IMA status: approved, named in 2016.
Found as a metasomatic mineral on fracture surfaces in vesuvianite/wollastonite rock.
It is found associated with Whelanite, cerussite, nasonite, calcite.
The mineral was named to honor the American geochemist-petrologist C. Wayne Burnham (1922-2015), Professor at Pennsylvania State University from 1955-1986 and Adjunct Professor of Geology.