Album caption: Prostite prisms. Dark mineral, sphalerite; light mineral, variscite (836 feet belo top of core). Routt County, Colorado. 1972. (Photomicrograph) Published as figure 10 in U. S. Geological Survey. Bulletin 1367. 1973.
Summary
Album caption: Prostite prisms. Dark mineral, sphalerite; light mineral, variscite (836 feet belo top of core). Routt County, Colorado. 1972. (Photomicrograph)
Published as figure 10 in U. S. Geological Survey. Bulletin 1367. 1973.
Available in the U.S. Geological Survey Denver Library Photographic Collection, Young, E. J. Collection.
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