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Remarks on C. Frondel's Letter: "Elastic Deficiency and Color of Natural Smoky Quartz"
Phys. Rev. 71, 319 – Published 1 March, 1947
DOI: https://doi.org/10.1103/PhysRev.71.319
Phys. Rev. 71, 319 – Published 1 March, 1947
DOI: https://doi.org/10.1103/PhysRev.71.319