Home > American Minerals V – October 1 > MS1670 Barnesite


Barnesite is an example of the so-called vanadium bronzes, which are colorful (Evans & White, 1987) and structurally complex vanadates (Schindler et al., 2000). Weeks et al. (1963) named the mineral after William H. Barnes (1903-1980), crystallographer at McGill University who specialized in vanadium minerals. The mineral was discovered during the Cold War uranium exploration boom in the Four Corners Region (Arizona, Utah, New Mexico, Colorado).

Barnesite forms a coverage 3.0 by 1.1 cm on sandstone matrix. Also present is minor metahewettite, apparently pseudomorphous after another vanadate. This specimen was part of the Charles Trantham (1936-2020) estate. A John "Jack" Parnau (1906-1990) label accompanies this specimen.

Price: $45

Item code: MS1670

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