Meyrowitzite

After serving in WW II, he joined the United States Geological Survey (USGS).

He was known for developing innovative new methods for analyzing small and difficult to study mineralogical samples along with his formulation of the high-index immersion liquids.

[2] Meyrowitzite was discovered underground in the Markey mine, Red Canyon, Suan Juan County, Utah, U.S.A.

Ore minerals were deposited as replacements of wood and other organic materials and as disseminations in the enclosing sandstone.

Since the closing of the Markey mine, oxidation of primary ores in the humid underground environment has produced a variety of secondary minerals.

These secondary minerals are primarily sulfates as efflorescent crusts on the surfaces of mine walls.

It displays variable fluorescence from weak greenish-yellow to moderate greenish blue under a 405 nm laser.

The analysis provides detailed information about chemical structure, phase, polymorphy, crystallinity, and molecular interactions.

[2] Chemical Analysis of Meyrowitzite was performed on a Cameca SX-50 electron microprobe with four wavelength-dispersive spectrometers and using Probe for EPMA software at the University of Utah.

The concentration of the total oxygen and carbon, calculated from the ideal formula, were used in the matrix correction.

[2] Powder and single-crystal X-ray studies were performed using a Rigaku R-Axis Rapid II curved imaging plate microdiffractometer with monochromatized MoKα radiation.

Rigaku XPlain program determined the space group P21/n, which led to a structural solution using SIR2011.

[2] [3] Meyrowitzite has a crystal structure based on a unique corrugated uranyl carbonate heteropolyhedral sheet.

Of the six CO3 2– groups in the structure, three centered by C1, C2, and C3 share alternating equatorial edges of the U1 hexagonal bipyramid, thereby forming the well-known uranyl tricarbonate (UTC) unit.

The other three, centered by C4, C5, and C6, share alternating equatorial edges of the U2 hexagonal bipyramid, forming a second UTC unit.