Home > American Minerals III – May 26 > MS1585 Bayleyite

Bayleyite

D-Day #4 mine
Yellow Cat district
San Juan County
Utah
U.S.A.

2.8 by 1.5 by 0.9 cm – Thumbnail specimen (fits into a 2.5 cm cube)

Bayleyite is a hydrous magnesium uranyl carbonate (Axelrod et al., 1951). The mineral name honors William Bayley (1861-1943), professor at the University of Illinois (Urbana-Champaign) and editor of Economic Geology. Mayer & Mereiter (1986) solved the crystal stricture of the synthetic equivalent. Bayleyite here forms intense yellow microcrystals on sandstone matrix. Very well formed for the species. This material has been confirmed using single crystal X-ray diffraction.

Price: $100

Item code: MS1585

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