Photomicrograph anhedral grains and cubic crystals of uraninite in biotite in thin section. Grand County, Colorado. n.d.
Summary
Album caption: Photomicrograph anhedral grains and cubic crystals of uraninite in biotite in thin section; secondary uranium minerals form light rims aound uraninite: spherical areas are bubbles in mounting medium; pyrite, muscovite, combined transmitted light and oblique reflected light. Grand County, Colorado. n. d. Published as figure 4-A, page 309,in U.S.Geological Survey. Journal of research, v. 3, no. 3. May-June, 1975.
Summary
Album caption: Photomicrograph anhedral grains and cubic crystals of uraninite in biotite in thin section; secondary uranium minerals form light rims aound uraninite: spherical areas are bubbles in mounting medium; pyrite, muscovite, combined transmitted light and oblique reflected light. Grand County, Colorado. n. d.
Published as figure 4-A, page 309,in U.S.Geological Survey. Journal of research, v. 3, no. 3. May-June, 1975.
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Available in the U.S. Geological Survey Denver Library Photographic Collection, Young, E. J. Collection.
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